diff options
| -rw-r--r-- | x11vnc/README | 989 | ||||
| -rw-r--r-- | x11vnc/x11vnc.1 | 2 | ||||
| -rw-r--r-- | x11vnc/x11vnc.c | 17 | ||||
| -rw-r--r-- | x11vnc/x11vnc_defs.c | 2 |
4 files changed, 518 insertions, 492 deletions
diff --git a/x11vnc/README b/x11vnc/README index 50655c6..3da443e 100644 --- a/x11vnc/README +++ b/x11vnc/README @@ -1,5 +1,5 @@ -x11vnc README file Date: Sun Feb 18 18:24:55 EST 2007 +x11vnc README file Date: Mon Feb 19 01:15:25 EST 2007 The following information is taken from these URLs: @@ -3818,15 +3818,15 @@ nt $2}'` exit 0 A default script somewhat like the above is used under "-display - WAIT:cmd=FINDDISPLAY" (use "WAIT:cmd=FINDDISPLAY-print" to print it - out) (same as [521]-find). The format for any such command is that it - returns DISPLAY=:disp as the first line and any remaining lines are - either XAUTHORITY=file or raw xauth data (the above example does the - latter). If applicable (-unixpw mode), the program is run as the Unix - user name who logged in. + WAIT:cmd=FINDDISPLAY" (same as [521]-find) (use + "WAIT:cmd=FINDDISPLAY-print" to print out the script). The format for + any such command is that it returns DISPLAY=:disp as the first line + and any remaining lines are either XAUTHORITY=file or raw xauth data + (the above example does the latter). If applicable (-unixpw mode), the + program is run as the Unix user name who logged in. On Linux if the virtual terminal is known the program should append - ",VT=n" to the DISPLAY line; a chvt n will be attempted automatially. + ",VT=n" to the DISPLAY line; a chvt n will be attempted automatically. Or if you only know the X server process ID and suspect a chvt will be needed append ",XPID=n". @@ -3847,16 +3847,16 @@ xpw= Note the very long lines have been split. An alternative is to use a wrapper script, e.g. /usr/local/bin/x11vnc.sh that has all of the - options. + options. (see also the [525]-svc alias). In the first one x11vnc is run as user "nobody" and stays user nobody during the whole session. The permissions of the log files and certs directory will need to be set up to allow "nobody" to use them. In the second one x11vnc is run as root and switches to the user that - logs in due to the "[525]-users unixpw=" option. + logs in due to the "[526]-users unixpw=" option. - Note that [526]SSL is required for this mode because otherwise the + Note that [527]SSL is required for this mode because otherwise the Unix password would be passed in clear text over the network. In general -unixpw is not required for this sort of scheme, but it is convenient because it determines exactly who the Unix user is whose @@ -3864,17 +3864,26 @@ xpw= to use some method to work out DISPLAY, XAUTHORITY, etc (perhaps you use multiple inetd ports and hardwire usernames for different ports). - If you really want to disable the SSL or SSH [527]-localhost + If you really want to disable the SSL or SSH [528]-localhost constraints (this is not recommended unless you really know what you are doing: Unix passwords sent in clear text is a very bad idea...) - read the [528]-unixpw documentation. + read the [529]-unixpw documentation. + + A inetd(8) scheme for a fixed user that doesn't use SSL or unix + passwds could be: +/usr/local/bin/x11vnc -inetd -users =fred -find -rfbauth /home/fred/.vnc/passwd + -o /var/log/x11vnc.log + + The "[530]-users =fred" option will cause x11vnc to switch to user + fred and then find his X display. + A recently (Nov/2006) added extension to FINDDISPLAY is FINDCREATEDISPLAY where if it does not find a display via the FINDDISPLAY method it will create an X server session for the user (i.e. desktop/terminal server). This is the only time x11vnc actually tries to start up an X server. By default it will only try to start up - virtual (non-hardware) X servers: first [529]Xdummy and if that is not + virtual (non-hardware) X servers: first [531]Xdummy and if that is not available then Xvfb. Note that Xdummy requires root permission and only works on Linux whereas Xvfb works just about everywhere. @@ -3884,19 +3893,19 @@ xpw= -display WAIT:cmd=FINDCREATEDISPLAY -prog /usr/local/bin/x11vnc Where the very long lines have been split. This will allow direct SSL - (e.g. [530]ss_vncviewer) access and also Java Web browers access via: + (e.g. [532]ss_vncviewer) access and also Java Web browers access via: https://hostname:5900/. - Tip: Note that the [531]-create option is an alias for "-display + Tip: Note that the [533]-create option is an alias for "-display WAIT:cmd=FINDCREATEDISPLAY-Xvfb". - Tip: Note that [532]-svc is a short hand for the long "-ssl SAVE + Tip: Note that [534]-svc is a short hand for the long "-ssl SAVE -unixpw -users unixpw= -display WAIT:cmd=FINDCREATEDISPLAY" part. Unlike -create, this alias also sets up SSL encryption and Unix password login. Tip: In addition to the usual unixpw parameters, the user can specify - after his username (following a ":" see [533]-display WAIT for + after his username (following a ":" see [535]-display WAIT for details) for FINDCREATEDISPLAY they can add "geom=WxH" or "geom=WxHxD" to specify the width, height, and optionally the color depth. E.g. "fred:geom=800x600" at the login: prompt. @@ -3927,7 +3936,7 @@ service x11vnc WAIT:cmd=FINDCREATEDISPLAY-X,Xvfb,Xdummy". The "X" one means to try to start up a real, hardware X server, e.g. startx(1) (if there is already a real X server running this may only work on Linux and the - chvt program may [534]need to be run to switch to the correct Linux + chvt program may [536]need to be run to switch to the correct Linux virtual terminal). x11vnc will try to run chvt automatically if it can determine which VT should be switched to. @@ -3954,7 +3963,7 @@ service x11vnc will also typically block UDP (port 177 for XDMCP) by default effectively limiting the UDP connections to localhost. - Tip: Note that [535]-xdmsvc is a short hand for the long "-ssl SAVE + Tip: Note that [537]-xdmsvc is a short hand for the long "-ssl SAVE -unixpw -users unixpw= -display WAIT:cmd=FINDCREATEDISPLAY-Xvfb.xdmcp" part. E.g.: service x11vnc @@ -3988,15 +3997,15 @@ service x11vnc Q-56: Can I have x11vnc restart itself after it terminates? One could do this in a shell script, but now there is an option - [536]-loop that makes it easier. Of course when x11vnc restarts it + [538]-loop that makes it easier. Of course when x11vnc restarts it needs to have permissions to connect to the (potentially new) X display. This mode could be useful if the X server restarts often. Use e.g. "-loop5000" to sleep 5000 ms between restarts. Also "-loop2000,5" to sleep 2000 ms and only restart 5 times. - One can also use the [537]-loopbg to emulate inetd(8) to some degree, + One can also use the [539]-loopbg to emulate inetd(8) to some degree, where each connected process runs in the background. It could be - combined, say, with the [538]-svc option to provide simple terminal + combined, say, with the [540]-svc option to provide simple terminal services without using inetd(8). @@ -4004,7 +4013,7 @@ service x11vnc web browser? To have x11vnc serve up a Java VNC viewer applet to any web browsers - that connect to it, run x11vnc with this [539]option: + that connect to it, run x11vnc with this [541]option: -httpdir /path/to/the/java/classes/dir (this directory will contain the files index.vnc and, for example, @@ -4023,7 +4032,7 @@ service x11vnc then you can connect to that URL with any Java enabled browser. Feel free to customize the default index.vnc file in the classes directory. - As of May/2005 the [540]-http option will try to guess where the Java + As of May/2005 the [542]-http option will try to guess where the Java classes jar file is by looking in expected locations and ones relative to the x11vnc binary. @@ -4039,7 +4048,7 @@ service x11vnc As of Mar/2004 x11vnc supports reverse connections. On Unix one starts the VNC viewer in listen mode: vncviewer -listen (see your documentation for Windows, etc), and then starts up x11vnc with the - [541]-connect option. To connect immediately at x11vnc startup time + [543]-connect option. To connect immediately at x11vnc startup time use the "-connect host:port" option (use commas for a list of hosts to connect to). The ":port" is optional (default is 5500). @@ -4047,7 +4056,7 @@ service x11vnc file is checked periodically (about once a second) for new hosts to connect to. - The [542]-remote control option (aka -R) can also be used to do this + The [544]-remote control option (aka -R) can also be used to do this during an active x11vnc session, e.g.: x11vnc -display :0 -R connect:hostname.domain @@ -4059,7 +4068,7 @@ x11vnc -display :0 -R connect:hostname.domain starting x11vnc. To use the vncconnect(1) program (from the core VNC package at - www.realvnc.com) specify the [543]-vncconnect option to x11vnc (Note: + www.realvnc.com) specify the [545]-vncconnect option to x11vnc (Note: as of Dec/2004 -vncconnect is now the default). vncconnect(1) must be pointed to the same X11 DISPLAY as x11vnc (since it uses X properties to communicate with x11vnc). If you do not have or do not want to get @@ -4102,19 +4111,19 @@ xprop -root -f VNC_CONNECT 8s -set VNC_CONNECT "$1" "screen scrape" it efficiently (more than, say, 100X faster than normal video hardware). - Update Nov/2006: See the [544]FINDCREATEDISPLAY discussion of the - "[545]-display WAIT:cmd=FINDDISPLAY" option where virtual (Xvfb or + Update Nov/2006: See the [546]FINDCREATEDISPLAY discussion of the + "[547]-display WAIT:cmd=FINDDISPLAY" option where virtual (Xvfb or Xdummy, or even real ones by changing an option) X servers are started automatically for new users connecting. This provides a "desktop service" for the machine. You either get your real X session or your virtual (Xvfb/Xdummy) one whenever you connect to the machine - (inetd(8) is a nice way to provide this service). The [546]-find, - [547]-create, [548]-svc, and [549]-xdmsvc aliases can also come in + (inetd(8) is a nice way to provide this service). The [548]-find, + [549]-create, [550]-svc, and [551]-xdmsvc aliases can also come in handy here. There are some annoyances WRT Xvfb though. The default keyboard mapping seems to be very poor. One should run x11vnc with - [550]-add_keysyms option to have keysyms added automatically. Also, to + [552]-add_keysyms option to have keysyms added automatically. Also, to add the Shift_R and Control_R modifiers something like this is needed: #!/bin/sh xmodmap -e "keycode any = Shift_R" @@ -4126,7 +4135,7 @@ xmodmap -e "keycode any = Alt_R" xmodmap -e "keycode any = Meta_L" xmodmap -e "add Mod1 = Alt_L Alt_R Meta_L" - (note: these are applied automatically in the [551]FINDCREATEDISPLAY + (note: these are applied automatically in the [553]FINDCREATEDISPLAY mode). Perhaps the Xvfb options -xkbdb or -xkbmap could be used to get a better default keyboard mapping. @@ -4141,11 +4150,11 @@ xmodmap -e "add Mod1 = Alt_L Alt_R Meta_L" The main drawback to this method (besides requiring extra configuration and possibly root permission) is that it also does the - Linux Virtual Console/Terminal (VC/VT) [552]switching even though it + Linux Virtual Console/Terminal (VC/VT) [554]switching even though it does not need to (since it doesn't use a real framebuffer). There are some "dual headed" (actually multi-headed/multi-user) patches to the X server that turn off the VT usage in the X server. Update: As of - Jul/2005 we have an LD_PRELOAD script [553]Xdummy that allows you to + Jul/2005 we have an LD_PRELOAD script [555]Xdummy that allows you to use a stock (i.e. unpatched) Xorg or XFree86 server with the "dummy" driver and not have any VT switching problems! Currently Xdummy needs to be run as root, but with some luck that may be relaxed in the @@ -4177,7 +4186,7 @@ startx -- /path/to/Xdummy :1 An X server can be started on the headless machine (sometimes this requires configuring the X server to not fail if it cannot detect a keyboard or mouse, see the next paragraph). Then you can export that X - display via x11vnc (e.g. see [554]this FAQ) and access it from + display via x11vnc (e.g. see [556]this FAQ) and access it from anywhere on the network via a VNC viewer. Some tips on getting X servers to start on machines without keyboard @@ -4200,10 +4209,10 @@ startx -- /path/to/Xdummy :1 cards as it can hold to provide multiple simultaneous access or testing on different kinds of video hardware. - See also the [555]FINDCREATEDISPLAY discussion of the "[556]-display + See also the [557]FINDCREATEDISPLAY discussion of the "[558]-display WAIT:cmd=FINDDISPLAY" option where virtual Xvfb or Xdummy, or real X servers are started automatically for new users connecting. The - [557]-find, [558]-create, [559]-svc, and [560]-xdmsvc aliases can also + [559]-find, [560]-create, [561]-svc, and [562]-xdmsvc aliases can also come in handy here. [Resource Usage and Performance] @@ -4226,7 +4235,7 @@ startx -- /path/to/Xdummy :1 19/03/2004 10:10:58 error creating tile-row shm for len=4 19/03/2004 10:10:58 reverting to single_copytile mode - Here is a shell script [561]shm_clear to list and prompt for removal + Here is a shell script [563]shm_clear to list and prompt for removal of your unattached shm segments (attached ones are skipped). I use it while debugging x11vnc (I use "shm_clear -y" to assume "yes" for each prompt). If x11vnc is regularly not cleaning up its shm segments, @@ -4260,40 +4269,40 @@ ied) in /etc/system. See the next paragraph for more workarounds. To minimize the number of shm segments used by x11vnc try using the - [562]-onetile option (corresponds to only 3 shm segments used, and + [564]-onetile option (corresponds to only 3 shm segments used, and adding -fs 1.0 knocks it down to 2). If you are having much trouble with shm segments, consider disabling shm completely via the - [563]-noshm option. Performance will be somewhat degraded but when + [565]-noshm option. Performance will be somewhat degraded but when done over local machine sockets it should be acceptable (see an - [564]earlier question discussing -noshm). + [566]earlier question discussing -noshm). Q-62: How can I make x11vnc use less system resources? - The [565]-nap (now on by default) and "[566]-wait n" (where n is the + The [567]-nap (now on by default) and "[568]-wait n" (where n is the sleep between polls in milliseconds, the default is 30 or so) option - are good places to start. Something like "[567]-sb 15" will cause + are good places to start. Something like "[569]-sb 15" will cause x11vnc to go into a deep-sleep mode after 15 seconds of no activity (instead of the default 60). Reducing the X server bits per pixel depth (e.g. to 16bpp or even 8bpp) will further decrease memory I/O and network I/O. The ShadowFB - will make x11vnc's screen polling less severe. Using the [568]-onetile + will make x11vnc's screen polling less severe. Using the [570]-onetile option will use less memory and use fewer shared memory slots (add - [569]-fs 1.0 for one less slot). + [571]-fs 1.0 for one less slot). Q-63: How can I make x11vnc use MORE system resources? - You can try [570]-threads and dial down the wait time (e.g. -wait 1) - and possibly dial down [571]-defer as well. Note that if you try to + You can try [572]-threads and dial down the wait time (e.g. -wait 1) + and possibly dial down [573]-defer as well. Note that if you try to increase the "frame rate" too much you can bog down the server end with the extra work it needs to do compressing the framebuffer data, etc. That said, it is possible to "stream" video via x11vnc if the video window is small enough. E.g. a 256x192 xawtv TV capture window (using - the x11vnc [572]-id option) can be streamed over a LAN or wireless at + the x11vnc [574]-id option) can be streamed over a LAN or wireless at a reasonable frame rate. @@ -4309,7 +4318,7 @@ ied) * Use a smaller desktop size (e.g. 1024x768 instead of 1280x1024) * Make sure the desktop background is a solid color (the background is resent every time it is re-exposed). Consider using the - [573]-solid [color] option to try to do this automatically. + [575]-solid [color] option to try to do this automatically. * Configure your window manager or desktop "theme" to not use fancy images, shading, and gradients for the window decorations, etc. Disable window animations, etc. Maybe your desktop has a "low @@ -4318,9 +4327,9 @@ ied) -> Use Smooth Scrolling (deselect it). * Avoid small scrolls of large windows using the Arrow keys or scrollbar. Try to use PageUp/PageDown instead. (not so much of a - problem in x11vnc 0.7.2 if [574]-scrollcopyrect is active and + problem in x11vnc 0.7.2 if [576]-scrollcopyrect is active and detecting scrolls for the application). - * If the [575]-wireframe option is not available (earlier than + * If the [577]-wireframe option is not available (earlier than x11vnc 0.7.2 or you have disabled it via -nowireframe) then Disable Opaque Moves and Resizes in the window manager/desktop. * However if -wireframe is active (on by default in x11vnc 0.7.2) @@ -4343,7 +4352,7 @@ ied) noticed. VNC viewer parameters: - * Use a [576]TightVNC enabled viewer! (Actually, RealVNC 4.x viewer + * Use a [578]TightVNC enabled viewer! (Actually, RealVNC 4.x viewer with ZRLE encoding is not too bad either; some claim it is faster). * Make sure the tight (or zrle) encoding is being used (look at @@ -4365,37 +4374,37 @@ ied) file. x11vnc parameters: - * Make sure the [577]-wireframe option is active (it should be on by + * Make sure the [579]-wireframe option is active (it should be on by default) and you have Opaque Moves/Resizes Enabled in the window manager. - * Make sure the [578]-scrollcopyrect option is active (it should be + * Make sure the [580]-scrollcopyrect option is active (it should be on by default). This detects scrolls in many (but not all) applications an applies the CopyRect encoding for a big speedup. * Enforce a solid background when VNC viewers are connected via - [579]-solid - * Specify [580]-speeds modem to force the wireframe and + [581]-solid + * Specify [582]-speeds modem to force the wireframe and scrollcopyrect heuristic parameters (and any future ones) to those of a dialup modem connection (or supply the rd,bw,lat numerical values that characterize your link). * If wireframe and scrollcopyrect aren't working, try using the more - drastic [581]-nodragging (no screen updates when dragging mouse, + drastic [583]-nodragging (no screen updates when dragging mouse, but sometimes you miss visual feedback) - * Set [582]-fs 1.0 (disables fullscreen updates) - * Try increasing [583]-wait or [584]-defer (reduces the maximum + * Set [584]-fs 1.0 (disables fullscreen updates) + * Try increasing [585]-wait or [586]-defer (reduces the maximum "frame rate", but won't help much for large screen changes) - * Try the [585]-progressive pixelheight mode with the block + * Try the [587]-progressive pixelheight mode with the block pixelheight 100 or so (delays sending vertical blocks since they may change while viewer is receiving earlier ones) - * If you just want to watch one (simple) window use [586]-id (cuts + * If you just want to watch one (simple) window use [588]-id (cuts down extraneous polling and updates, but can be buggy or insufficient) - * Set [587]-nosel (disables all clipboard selection exchange) - * Use [588]-nocursor and [589]-nocursorpos (repainting the remote + * Set [589]-nosel (disables all clipboard selection exchange) + * Use [590]-nocursor and [591]-nocursorpos (repainting the remote cursor position and shape takes resources and round trips) * On very slow links (e.g. <= 28.8) you may need to increase the - [590]-readtimeout n setting if it sometimes takes more than 20sec + [592]-readtimeout n setting if it sometimes takes more than 20sec to paint the full screen, etc. - * Do not use [591]-fixscreen to automatically refresh the whole + * Do not use [593]-fixscreen to automatically refresh the whole screen, tap three Alt_L's then the screen has painting errors (rare problem). @@ -4464,7 +4473,7 @@ ied) Note that the DAMAGE extension does not speed up the actual reading of pixels from the video card framebuffer memory, by, say, mirroring them - in main memory. So reading the fb is still painfully [592]slow (e.g. + in main memory. So reading the fb is still painfully [594]slow (e.g. 5MB/sec), and so even using X DAMAGE when large changes occur on the screen the bulk of the time is still spent retrieving them. Not ideal, but use of the ShadowFB XFree86/Xorg option speeds up the reading @@ -4482,41 +4491,41 @@ ied) DAMAGE rectangles to contain real damage. The larger rectangles are only used as hints to focus the traditional scanline polling (i.e. if a scanline doesn't intersect a recent DAMAGE rectangle, the scan is - skipped). You can use the "[593]-xd_area A" option to adjust the size + skipped). You can use the "[595]-xd_area A" option to adjust the size of the trusted DAMAGE rectangles. The default is 20000 pixels (e.g. a 140x140 square, etc). Use "-xd_area 0" to disable the cutoff and trust all DAMAGE rectangles. - The option "[594]-xd_mem f" may also be of use in tuning the - algorithm. To disable using DAMAGE entirely use "[595]-noxdamage". + The option "[596]-xd_mem f" may also be of use in tuning the + algorithm. To disable using DAMAGE entirely use "[597]-noxdamage". Q-66: My OpenGL application shows no screen updates unless I supply the -noxdamage option to x11vnc. One user reports in his environment (MythTV using the NVIDIA OpenGL drivers) he gets no updates after the initial screen is drawn unless - he uses the "[596]-noxdamage" option. + he uses the "[598]-noxdamage" option. This seems to be a bug in the X DAMAGE implementation of that driver. You may have to use -noxdamage as well. A way to autodetect this will be tried, probably the best it will do is automatically stop using X DAMAGE. - Update: see [597]this FAQ too. + Update: see [599]this FAQ too. Q-67: When I drag windows around with the mouse or scroll up and down things really bog down (unless I do the drag in a single, quick motion). Is there anything to do to improve things? - This problem is primarily due to [598]slow hardware read rates from + This problem is primarily due to [600]slow hardware read rates from video cards: as you scroll or move a large window around the screen changes are much too rapid for x11vnc to keep up them (it can usually only read the video card at about 5-10 MB/sec, so it can take a good fraction of a second to read the changes induce from moving a large window, if this to be done a number of times in succession the window or scroll appears to "lurch" forward). See the description in the - [599]-pointer_mode option for more info. The next bottleneck is + [601]-pointer_mode option for more info. The next bottleneck is compressing all of these changes and sending them out to connected viewers, however the VNC protocol is pretty much self-adapting with respect to that (updates are only packaged and sent when viewers ask @@ -4526,26 +4535,26 @@ ied) default should now be much better than before and dragging small windows around should no longer be a huge pain. If for some reason these changes make matters worse, you can go back to the old way via - the "[600]-pointer_mode 1" option. + the "[602]-pointer_mode 1" option. - Also added was the [601]-nodragging option that disables all screen + Also added was the [603]-nodragging option that disables all screen updates while dragging with the mouse (i.e. mouse motion with a button held down). This gives the snappiest response, but might be undesired in some circumstances when you want to see the visual feedback while dragging (e.g. menu traversal or text selection). - As of Dec/2004 the [602]-pointer_mode n option was introduced. n=1 is + As of Dec/2004 the [604]-pointer_mode n option was introduced. n=1 is the original mode, n=2 an improvement, etc.. See the -pointer_mode n help for more info. - Also, in some circumstances the [603]-threads option can improve + Also, in some circumstances the [605]-threads option can improve response considerably. Be forewarned that if more than one vncviewer is connected at the same time then libvncserver may not be thread safe (try to get the viewers to use different VNC encodings, e.g. tight and ZRLE). - As of Apr/2005 two new options (see the [604]wireframe FAQ and - [605]scrollcopyrect FAQ below) provide schemes to sweep this problem + As of Apr/2005 two new options (see the [606]wireframe FAQ and + [607]scrollcopyrect FAQ below) provide schemes to sweep this problem under the rug for window moves or resizes and for some (but not all) window scrolls. These are the preferred way of avoiding the "lurching" problem, contact me if they are not working. Note on SuSE and some @@ -4569,8 +4578,8 @@ EndSection the window move/resize stops, it returns to normal processing: you should only see the window appear in the new position. This spares you from interacting with a "lurching" window between all of the - intermediate steps. BTW the lurching is due to [606]slow video card - read rates (see [607]here too). A displacement, even a small one, of a + intermediate steps. BTW the lurching is due to [608]slow video card + read rates (see [609]here too). A displacement, even a small one, of a large window requires a non-negligible amount of time, a good fraction of a second, to read in from the hardware framebuffer. @@ -4578,7 +4587,7 @@ EndSection for -wireframe to do any good. The mode is currently on by default because most people are afflicted - with the problem. It can be disabled with the [608]-nowireframe option + with the problem. It can be disabled with the [610]-nowireframe option (aka -nowf). Why might one want to turn off the wireframing? Since x11vnc is merely guessing when windows are being moved/resized, it may guess poorly for your window-manager or desktop, or even for the way @@ -4623,13 +4632,13 @@ EndSection * Maximum time to show a wireframe animation. * Minimum time between sending wireframe outlines. - See the [609]"-wireframe tweaks" option for more details. On a slow + See the [611]"-wireframe tweaks" option for more details. On a slow link, e.g. dialup modem, the parameters may be automatically adjusted for better response. CopyRect encoding: In addition to the above there is the - [610]"-wirecopyrect mode" option. It is also on by default. This + [612]"-wirecopyrect mode" option. It is also on by default. This instructs x11vnc to not only show the wireframe animation, but to also instruct all connected VNC viewers to locally translate the window image data from the original position to the new position on the @@ -4677,7 +4686,7 @@ EndSection requiring the image data to be transmitted over the network. For fast links the speedup is primarily due to x11vnc not having to read the scrolled framebuffer data from the X server (recall that reading from - the hardware framebuffer is [611]slow). + the hardware framebuffer is [613]slow). To do this x11vnc uses the RECORD X extension to snoop the X11 protocol between the X client with the focus window and the X server. @@ -4704,10 +4713,10 @@ EndSection the X server display: if one falls too far behind it could become a mess... - The initial implementation of [612]-scrollcopyrect option is useful in + The initial implementation of [614]-scrollcopyrect option is useful in that it detects many scrolls and thus gives a much nicer working - environment (especially when combined with the [613]-wireframe - [614]-wirecopyrect [615]options, which are also on by default; and if + environment (especially when combined with the [615]-wireframe + [616]-wirecopyrect [617]options, which are also on by default; and if you are willing to enable the ShadowFB things are very fast). The fact that there aren't long delays or lurches during scrolling is the primary improvement. @@ -4740,10 +4749,10 @@ EndSection One can tap the Alt_L key (Left "Alt" key) 3 times in a row to signal x11vnc to refresh the screen to all viewers. Your VNC-viewer may have its own screen refresh hot-key or button. See - also: [616]-fixscreen + also: [618]-fixscreen * Some applications, notably OpenOffice, do XCopyArea scrolls in weird ways that assume ancestor window clipping is taking place. - See the [617]-scr_skip option for ways to tweak this on a + See the [619]-scr_skip option for ways to tweak this on a per-application basis. * Selecting text while dragging the mouse may be slower, especially if the Button-down event happens near the window's edge. This is @@ -4760,7 +4769,7 @@ EndSection because it fails to detect scrolls in it. Sometimes clicking inside the application window or selecting some text in it to force the focus helps. - * When using the [618]-scale option there will be a quick CopyRect + * When using the [620]-scale option there will be a quick CopyRect scroll, but it needs to be followed by a slower "cleanup" update. This is because for a fixed finite screen resolution (e.g. 75 dpi) scaling and copyrect-ing are not exactly independent. Scaling @@ -4773,7 +4782,7 @@ EndSection If you find the -scrollcopyrect behavior too approximate or distracting you can go back to the standard polling-only update method - with the [619]-noscrollcopyrect (or -noscr for short). If you find + with the [621]-noscrollcopyrect (or -noscr for short). If you find some extremely bad and repeatable behavior for -scrollcopyrect please report a bug. @@ -4798,9 +4807,9 @@ EndSection that pixel data is needed again it does not have to be retransmitted over the network. - As of Dec/2006 in the [620]0.8.5 development tarball there is an + As of Dec/2006 in the [622]0.8.5 development tarball there is an experimental client-side caching implementation enabled by the - "[621]-ncache n" option. In fact, during the test period at least it + "[623]-ncache n" option. In fact, during the test period at least it is on by default with n set to 12. To disable it use "-noncache". It is a simple scheme where a (very large) lower portion of the @@ -4833,7 +4842,7 @@ EndSection perhaps something else, maybe double buffering or other offscreen rendering...). - The Enhanced TightVNC Viewer Unix viewer has a nice [622]-ycrop option + The Enhanced TightVNC Viewer Unix viewer has a nice [624]-ycrop option to help hide the pixel cache area from view. It will turn on automatically if the framebuffer appears to be very tall (height more than twice the width), or you can supply the actual value for the @@ -4863,7 +4872,7 @@ EndSection an additional factor of 2 in memory use. However, even in the smallest usage mode with n equal 2 and - [623]-ncache_no_rootpixmap set (this requires only 2X additional + [625]-ncache_no_rootpixmap set (this requires only 2X additional framebuffer memory) there is still a noticable improvement for many activities, although it is not as dramatic as with, say n equal 12 and rootpixmap (desktop background) caching enabled. @@ -4874,7 +4883,7 @@ EndSection be tuned to use less, or the VNC community will extend the protocol to allow caching and replaying of compressed blobs of data. - Another option to experiment with is "[624]-ncache_cr". By specifying + Another option to experiment with is "[626]-ncache_cr". By specifying it, x11vnc will try to do smooth opaque window moves instead of its wireframe. This can give a very nice effect (note: on Unix the realvnc viewer seems to be smoother than the tightvnc viewer), but can lead to @@ -4934,23 +4943,23 @@ EndSection this is because the cursor shape is often downloaded to the graphics hardware (video card), but I could be mistaken. - A simple kludge is provided by the "[625]-cursor X" option that + A simple kludge is provided by the "[627]-cursor X" option that changes the cursor when the mouse is on the root background (or any window has the same cursor as the root background). Note that desktops like GNOME or KDE often cover up the root background, so this won't - work for those cases. Also see the "[626]-cursor some" option for + work for those cases. Also see the "[628]-cursor some" option for additional kludges. Note that as of Aug/2004 on Solaris using the SUN_OVL overlay extension and IRIX, x11vnc can show the correct mouse cursor when the - [627]-overlay option is supplied. See [628]this FAQ for more info. + [629]-overlay option is supplied. See [630]this FAQ for more info. Also as of Dec/2004 XFIXES X extension support has been added to allow exact extraction of the mouse cursor shape. XFIXES fixes the problem of the cursor-shape being write-only: x11vnc can now query the X server for the current shape and send it back to the connected viewers. XFIXES is available on recent Linux Xorg based distros and - [629]Solaris 10. + [631]Solaris 10. The only XFIXES issue is the handling of alpha channel transparency in cursors. If a cursor has any translucency then in general it must be @@ -4958,7 +4967,7 @@ EndSection situations where the cursor transparency can also handled exactly: when the VNC Viewer requires the cursor shape be drawn into the VNC framebuffer or if you apply a patch to your VNC Viewer to extract - hidden alpha channel data under 32bpp. [630]Details can be found here. + hidden alpha channel data under 32bpp. [632]Details can be found here. Q-72: When using XFIXES cursorshape mode, some of the cursors look @@ -4991,17 +5000,17 @@ EndSection for most cursor themes and you don't have to worry about it. In case it still looks bad for your cursor theme, there are (of - course!) some tunable parameters. The "[631]-alphacut n" option lets + course!) some tunable parameters. The "[633]-alphacut n" option lets you set the threshold "n" (between 0 and 255): cursor pixels with alpha values below n will be considered completely transparent while values equal to or above n will be completely opaque. The default is - 240. The "[632]-alphafrac f" option tries to correct individual + 240. The "[634]-alphafrac f" option tries to correct individual cursors that did not fare well with the default -alphacut value: if a cursor has less than fraction f (between 0.0 and 1.0) of its pixels selected by the default -alphacut, the threshold is lowered until f of its pixels are selected. The default fraction is 0.33. - Finally, there is an option [633]-alpharemove that is useful for + Finally, there is an option [635]-alpharemove that is useful for themes where many cursors are light colored (e.g. "whiteglass"). XFIXES returns the cursor data with the RGB values pre-multiplied by the alpha value. If the white cursors look too grey, specify @@ -5027,10 +5036,10 @@ EndSection alpha channel data to libvncserver. However, this data will only be used for VNC clients that do not support the CursorShapeUpdates VNC extension (or have disabled it). It can be disabled for all clients - with the [634]-nocursorshape x11vnc option. In this case the cursor is + with the [636]-nocursorshape x11vnc option. In this case the cursor is drawn, correctly blended with the background, into the VNC framebuffer before being sent out to the client. So the alpha blending is done on - the x11vnc side. Use the [635]-noalphablend option to disable this + the x11vnc side. Use the [637]-noalphablend option to disable this behavior (always approximate transparent cursors with opaque RGB values). @@ -5054,7 +5063,7 @@ EndSection example on how to change the Windows TightVNC viewer to achieve the same thing (send me the patch if you get that working). - This patch is applied to the [636]Enhanced TightVNC Viewer (ssvnc) + This patch is applied to the [638]Enhanced TightVNC Viewer (ssvnc) package we provide. [Mouse Pointer] @@ -5062,9 +5071,9 @@ EndSection Q-74: Why does the mouse arrow just stay in one corner in my vncviewer, whereas my cursor (that does move) is just a dot? - This default takes advantage of a [637]tightvnc extension + This default takes advantage of a [639]tightvnc extension (CursorShapeUpdates) that allows specifying a cursor image shape for - the local VNC viewer. You may disable it with the [638]-nocursor + the local VNC viewer. You may disable it with the [640]-nocursor option to x11vnc if your viewer does not have this extension. Note: as of Aug/2004 this should be fixed: the default for @@ -5078,17 +5087,17 @@ EndSection clients (i.e. passive viewers can see the mouse cursor being moved around by another viewer)? - Use the [639]-cursorpos option when starting x11vnc. A VNC viewer must + Use the [641]-cursorpos option when starting x11vnc. A VNC viewer must support the Cursor Positions Updates for the user to see the mouse motions (the TightVNC viewers support this). As of Aug/2004 -cursorpos - is the default. See also [640]-nocursorpos and [641]-nocursorshape. + is the default. See also [642]-nocursorpos and [643]-nocursorshape. Q-76: Is it possible to swap the mouse buttons (e.g. left-handed operation), or arbitrarily remap them? How about mapping button clicks to keystrokes, e.g. to partially emulate Mouse wheel scrolling? - You can remap the mouse buttons via something like: [642]-buttonmap + You can remap the mouse buttons via something like: [644]-buttonmap 13-31 (or perhaps 12-21). Also, note that xmodmap(1) lets you directly adjust the X server's button mappings, but in some circumstances it might be more desirable to have x11vnc do it. @@ -5096,7 +5105,7 @@ EndSection One user had an X server with only one mouse button(!) and was able to map all of the VNC client mouse buttons to it via: -buttonmap 123-111. - Note that the [643]-debug_pointer option prints out much info for + Note that the [645]-debug_pointer option prints out much info for every mouse/pointer event and is handy in solving problems. To map mouse button clicks to keystrokes you can use the alternate @@ -5118,7 +5127,7 @@ EndSection Exactly what keystroke "scrolling" events they should be bound to depends on one's taste. If this method is too approximate, one could - consider not using [644]-buttonmap but rather configuring the X server + consider not using [646]-buttonmap but rather configuring the X server to think it has a mouse with 5 buttons even though the physical mouse does not. (e.g. 'Option "ZAxisMapping" "4 5"'). @@ -5148,7 +5157,7 @@ EndSection Q-77: How can I get my AltGr and Shift modifiers to work between keyboards for different languages? - The option [645]-modtweak should help here. It is a mode that monitors + The option [647]-modtweak should help here. It is a mode that monitors the state of the Shift and AltGr Modifiers and tries to deduce the correct keycode to send, possibly by sending fake modifier key presses and releases in addition to the actual keystroke. @@ -5157,16 +5166,16 @@ EndSection to get the old behavior). This was done because it was noticed on newer XFree86 setups even on bland "us" keyboards like "pc104 us" XFree86 included a "ghost" key with both "<" and ">" it. This key does - not exist on the keyboard (see [646]this FAQ for more info). Without + not exist on the keyboard (see [648]this FAQ for more info). Without -modtweak there was then an ambiguity in the reverse map keysym => keycode, making it so the "<" symbol could not be typed. - Also see the [647]FAQ about the -xkb option for a more powerful method + Also see the [649]FAQ about the -xkb option for a more powerful method of modifier tweaking for use on X servers with the XKEYBOARD extension. When trying to resolve keyboard mapping problems, note that the - [648]-debug_keyboard option prints out much info for every keystroke + [650]-debug_keyboard option prints out much info for every keystroke and so can be useful debugging things. @@ -5178,9 +5187,9 @@ EndSection (e.g. pc105 in the XF86Config file when it should be something else, say pc104). - Short Cut: Try the [649]-xkb or [650]-sloppy_keys options and see if + Short Cut: Try the [651]-xkb or [652]-sloppy_keys options and see if that helps the situation. The discussion below is a bit outdated (e.g. - [651]-modtweak is now the default) but it is useful reference for + [653]-modtweak is now the default) but it is useful reference for various tricks and so is kept. @@ -5223,17 +5232,17 @@ EndSection -remap less-comma These are convenient in that they do not modify the actual X server - settings. The former ([652]-modtweak) is a mode that monitors the + settings. The former ([654]-modtweak) is a mode that monitors the state of the Shift and AltGr modifiers and tries to deduce the correct keycode sequence to send. Since Jul/2004 -modtweak is now the default. - The latter ([653]-remap less-comma) is an immediate remapping of the + The latter ([655]-remap less-comma) is an immediate remapping of the keysym less to the keysym comma when it comes in from a client (so when Shift is down the comma press will yield "<"). - See also the [654]FAQ about the -xkb option as a possible workaround + See also the [656]FAQ about the -xkb option as a possible workaround using the XKEYBOARD extension. - Note that the [655]-debug_keyboard option prints out much info for + Note that the [657]-debug_keyboard option prints out much info for every keystroke to aid debugging keyboard problems. @@ -5241,13 +5250,13 @@ EndSection (i.e. an extra comma). This is likely because you press "Shift" then "<" but then released - the Shift key before releasing the "<". Because of a [656]keymapping + the Shift key before releasing the "<". Because of a [658]keymapping ambiguity the last event "< up" is interpreted as "," because that key unshifted is the comma. - This should not happen in [657]-xkb mode, because it works hard to + This should not happen in [659]-xkb mode, because it works hard to resolve the ambiguities. If you do not want to use -xkb, try the - option [658]-sloppy_keys to attempt a similar type of algorithm. + option [660]-sloppy_keys to attempt a similar type of algorithm. Q-80: I'm using an "international" keyboard (e.g. German "de", or @@ -5271,7 +5280,7 @@ EndSection In both cases no AltGr is sent to the VNC server, but we know AltGr is needed on the physical international keyboard to type a "@". - This all worked fine with x11vnc running with the [659]-modtweak + This all worked fine with x11vnc running with the [661]-modtweak option (it figures out how to adjust the Modifier keys (Shift or AltGr) to get the "@"). However it fails under recent versions of XFree86 (and the X.org fork). These run the XKEYBOARD extension by @@ -5288,7 +5297,7 @@ EndSection * there is a new option -xkb to use the XKEYBOARD extension API to do the Modifier key tweaking. - The [660]-xkb option seems to fix all of the missing keys: "@", "<", + The [662]-xkb option seems to fix all of the missing keys: "@", "<", ">", etc.: it is recommended that you try it if you have this sort of problem. Let us know if there are any remaining problems (see the next paragraph for some known problems). If you specify the -debug_keyboard @@ -5296,7 +5305,7 @@ EndSection debugging output (send it along with any problems you report). Update: as of Jun/2005 x11vnc will try to automatically enable - [661]-xkb if it appears that would be beneficial (e.g. if it sees any + [663]-xkb if it appears that would be beneficial (e.g. if it sees any of "@", "<", ">", "[" and similar keys are mapped in a way that needs the -xkb to access them). To disable this automatic check use -noxkb. @@ -5311,7 +5320,7 @@ EndSection was attached to keycode 93 (no physical key generates this keycode) while ISO_Level3_Shift was attached to keycode 113. The keycode skipping option was used to disable the ghost key: - [662]-skip_keycodes 93 + [664]-skip_keycodes 93 * In implementing -xkb we noticed that some characters were still not getting through, e.g. "~" and "^". This is not really an XKEYBOARD problem. What was happening was the VNC viewer was @@ -5329,16 +5338,16 @@ EndSection What to do? In general the VNC protocol has not really solved this problem: what should be done if the VNC viewer sends a keysym not recognized by the VNC server side? Workarounds can possibly be - created using the [663]-remap x11vnc option: + created using the [665]-remap x11vnc option: -remap asciitilde-dead_tilde,asciicircum-dead_circumflex etc. Use -remap filename if the list is long. Please send us your workarounds for this problem on your keyboard. Perhaps we can have x11vnc adjust automatically at some point. Also see the - [664]-add_keysyms option in the next paragraph. - Update: for convenience "[665]-remap DEAD" does many of these + [666]-add_keysyms option in the next paragraph. + Update: for convenience "[667]-remap DEAD" does many of these mappings at once. - * To complement the above workaround using the [666]-remap, an - option [667]-add_keysyms was added. This option instructs x11vnc + * To complement the above workaround using the [668]-remap, an + option [669]-add_keysyms was added. This option instructs x11vnc to bind any unknown Keysyms coming in from VNC viewers to unused Keycodes in the X server. This modifies the global state of the X server. When x11vnc exits it removes the extra keymappings it @@ -5357,7 +5366,7 @@ EndSection Short answer: disable key autorepeating by running the command "xset r off" on the Xserver where x11vnc is run (restore via "xset r on") or - use the new (Jul/2004) [668]-norepeat x11vnc option. You will still + use the new (Jul/2004) [670]-norepeat x11vnc option. You will still have autorepeating because that is taken care of on your VNC viewer side. @@ -5381,7 +5390,7 @@ EndSection off", does the problem go away? The workaround is to manually apply "xset r off" and "xset r on" as - needed, or to use the [669]-norepeat (which has since Dec/2004 been + needed, or to use the [671]-norepeat (which has since Dec/2004 been made the default). Note that with X server autorepeat turned off the VNC viewer side of the connection will (nearly always) do its own autorepeating so there is no big loss here, unless someone is also @@ -5392,7 +5401,7 @@ EndSection keystrokes!! Are you using x11vnc to log in to an X session via display manager? - (as described in [670]this FAQ) If so, x11vnc is starting before your + (as described in [672]this FAQ) If so, x11vnc is starting before your session and it disables autorepeat when you connect, but then after you log in your session startup (GNOME, KDE, ...) could be resetting the autorepeat to be on. Or it could be something inside your desktop @@ -5416,7 +5425,7 @@ EndSection machine where I run the VNC viewer does not. Is there a way I can map a local unused key to send an AltGr? How about a Compose key as well? - Something like "[671]-remap Super_R-Mode_switch" x11vnc option may + Something like "[673]-remap Super_R-Mode_switch" x11vnc option may work. Note that Super_R is the "Right Windoze(tm) Flaggie" key; you may want to choose another. The -debug_keyboard option comes in handy in finding keysym names (so does xev(1)). @@ -5439,7 +5448,7 @@ EndSection Since xmodmap(1) modifies the X server mappings you may not want to do this (because it affects local work on that machine). Something like - the [672]-remap Alt_L-Meta_L to x11vnc may be sufficient for ones + the [674]-remap Alt_L-Meta_L to x11vnc may be sufficient for ones needs, and does not modify the X server environment. Note that you cannot send Alt_L in this case, maybe -remap Super_L-Meta_L would be a better choice if the Super_L key is typically unused in Unix. @@ -5459,7 +5468,7 @@ EndSection and similar triple mappings (with two in the AltGr/Mode_switch group) of a keysum to a single keycode. - Use the [673]-nomodtweak option as a workaround. You can also use + Use the [675]-nomodtweak option as a workaround. You can also use xmodmap to correct these mappings in the server, e.g.: xmodmap -e "keycode 47 = 3 numbersign" @@ -5473,7 +5482,7 @@ EndSection This can be done directly in some X servers using AccessX and Pointer_EnableKeys, but is a bit awkward. It may be more convenient to - have x11vnc do the remapping. This can be done via the [674]-remap + have x11vnc do the remapping. This can be done via the [676]-remap option using the fake "keysyms" Button1, Button2, etc. as the "to" keys (i.e. the ones after the "-") @@ -5482,7 +5491,7 @@ EndSection button "paste" because (using XFree86/Xorg Emulate3Buttons) you have to click both buttons on the touch pad at the same time. This remapping: - [675]-remap Super_R-Button2 + [677]-remap Super_R-Button2 maps the Super_R "flag" key press to the Button2 click, thereby making X pasting a bit easier. @@ -5501,10 +5510,10 @@ EndSection Caps_Lock in the viewer your local machine goes into the Caps_Lock on state and sends keysym "A" say when you press "a". x11vnc will then fake things up so that Shift is held down to generate "A". The - [676]-skip_lockkeys option should help to accomplish this. For finer - grain control use something like: "[677]-remap Caps_Lock-None". + [678]-skip_lockkeys option should help to accomplish this. For finer + grain control use something like: "[679]-remap Caps_Lock-None". - Also try the [678]-nomodtweak and [679]-capslock options. + Also try the [680]-nomodtweak and [681]-capslock options. [Screen Related Issues and Features] @@ -5527,7 +5536,7 @@ EndSection There may also be scaling viewers out there (e.g. TightVNC or UltraVNC on Windows) that automatically shrink or expand the remote framebuffer to fit the local display. Especially for hand-held devices. See also - [680]this FAQ on x11vnc scaling. + [682]this FAQ on x11vnc scaling. Q-89: Does x11vnc support server-side framebuffer scaling? (E.g. to @@ -5535,7 +5544,7 @@ EndSection As of Jun/2004 x11vnc provides basic server-side scaling. It is a global scaling of the desktop, not a per-client setting. To enable it - use the "[681]-scale fraction" option. "fraction" can either be a + use the "[683]-scale fraction" option. "fraction" can either be a floating point number (e.g. -scale 0.5) or the alternative m/n fraction notation (e.g. -scale 3/4). Note that if fraction is greater than one the display is magnified. @@ -5556,7 +5565,7 @@ EndSection One can also use the ":nb" with an integer scale factor (say "-scale 2:nb") to use x11vnc as a screen magnifier for vision impaired - [682]applications. Since with integer scale factors the framebuffers + [684]applications. Since with integer scale factors the framebuffers become huge and scaling operations time consuming, be sure to use ":nb" for the fastest response. @@ -5582,7 +5591,7 @@ EndSection If one desires per-client scaling for something like 1:1 from a workstation and 1:2 from a smaller device (e.g. handheld), currently the only option is to run two (or more) x11vnc processes with - different scalings listening on separate ports ([683]-rfbport option, + different scalings listening on separate ports ([685]-rfbport option, etc.). Update: As of May/2006 x11vnc also supports the UltraVNC server-side @@ -5592,8 +5601,8 @@ EndSection "-rfbversion 3.6" for this to be recognized by UltraVNC viewers. BTW, whenever you run two or more x11vnc's on the same X display and - use the [684]GUI, then to avoid all of the x11vnc's simultaneously - answering the gui you will need to use something like [685]"-connect + use the [686]GUI, then to avoid all of the x11vnc's simultaneously + answering the gui you will need to use something like [687]"-connect file1 -gui ..." with different connect files for each x11vnc you want to control via the gui (or remote-control). The "-connect file1" usage gives separate communication channels between a x11vnc proces and the @@ -5602,7 +5611,7 @@ EndSection Update: As of Mar/2005 x11vnc now scales the mouse cursor with the same scale factor as the screen. If you don't want that, use the - [686]"-scale_cursor frac" option to set the cursor scaling to a + [688]"-scale_cursor frac" option to set the cursor scaling to a different factor (e.g. use "-scale_cursor 1" to keep the cursor at its natural unscaled size). @@ -5624,17 +5633,17 @@ EndSection screen is not rectangular (e.g. 1280x1024 and 1024x768 monitors joined together), then there will be "non-existent" areas on the screen. The X server will return "garbage" image data for these areas and so they - may be distracting to the viewer. The [687]-blackout x11vnc option + may be distracting to the viewer. The [689]-blackout x11vnc option allows you to blacken-out rectangles by manually specifying their WxH+X+Y geometries. If your system has the libXinerama library, the - [688]-xinerama x11vnc option can be used to have it automatically + [690]-xinerama x11vnc option can be used to have it automatically determine the rectangles to be blackened out. (Note on 8bpp PseudoColor displays the fill color may not be black). Update: - [689]-xinerama is now on by default. + [691]-xinerama is now on by default. Some users have reported that the mouse does not behave properly for their Xinerama display: i.e. the mouse cannot be moved to all regions - of the large display. If this happens try using the [690]-xwarppointer + of the large display. If this happens try using the [692]-xwarppointer option. This instructs x11vnc to fake mouse pointer motions using the XWarpPointer function instead of the XTestFakeMotionEvent XTEST function. (This may be due to a bug in the X server for XTEST when @@ -5659,23 +5668,23 @@ EndSection Note: if you are running on Solaris 8 or earlier you can easily hit up against the maximum of 6 shm segments per process (for Xsun in this case) from running multiple x11vnc processes. You should modify - /etc/system as mentioned in another [691]FAQ to increase the limit. It - is probably also a good idea to run with the [692]-onetile option in + /etc/system as mentioned in another [693]FAQ to increase the limit. It + is probably also a good idea to run with the [694]-onetile option in this case (to limit each x11vnc to 3 shm segments), or even - [693]-noshm to use no shm segments. + [695]-noshm to use no shm segments. Q-92: Can x11vnc show only a portion of the display? (E.g. for a special purpose rfb application). - As of Mar/2005 x11vnc has the "[694]-clip WxH+X+Y" option to select a + As of Mar/2005 x11vnc has the "[696]-clip WxH+X+Y" option to select a rectangle of width W, height H and offset (X, Y). Thus the VNC screen will be the clipped sub-region of the display and be only WxH in size. - One user used -clip to split up a large [695]Xinerama screen into two + One user used -clip to split up a large [697]Xinerama screen into two more managable smaller screens. This also works to view a sub-region of a single application window if - the [696]-id or [697]-sid options are used. The offset is measured + the [698]-id or [699]-sid options are used. The offset is measured from the upper left corner of the selected window. @@ -5684,7 +5693,7 @@ EndSection crash. As of Dec/2004 x11vnc supports XRANDR. You enable it with the - [698]-xrandr option to make x11vnc monitor XRANDR events and also trap + [700]-xrandr option to make x11vnc monitor XRANDR events and also trap X server errors if the screen change occurred in the middle of an X call like XGetImage. Once it traps the screen change it will create a new framebuffer using the new screen. @@ -5694,9 +5703,9 @@ EndSection then the viewer will automatically resize. Otherwise, the new framebuffer is fit as best as possible into the original viewer size (portions of the screen may be clipped, unused, etc). For these - viewers you can try the [699]-padgeom option to make the region big + viewers you can try the [701]-padgeom option to make the region big enough to hold all resizes and rotations. We have fixed this problem - for the TightVNC Viewer on Unix: [700]enhanced_tightvnc_viewer + for the TightVNC Viewer on Unix: [702]enhanced_tightvnc_viewer If you specify "-xrandr newfbsize" then vnc viewers that do not support NewFBSize will be disconnected before the resize. If you @@ -5708,7 +5717,7 @@ EndSection reflect the screen that the VNC viewers see? (e.g. for a handheld whose screen is rotated 90 degrees). - As of Jul/2006 there is the [701]-rotate option allow this. E.g's: + As of Jul/2006 there is the [703]-rotate option allow this. E.g's: "-rotate +90", "-rotate -90", "-rotate x", etc. @@ -5773,13 +5782,13 @@ EndSection This may be a bug in kdesktop_lock. For now the only workaround is to disable the screensaver. You can try using another one such as - straight xscreensaver (see the instructions [702]here for how to + straight xscreensaver (see the instructions [704]here for how to disable kdesktop_lock). If you have more info on this or see it outside of KDE please let us know. Update: It appears this is due to kdesktop_lock enabling the screen saver when the Monitor is in DPMS low-power state (e.g. standby, - suspend, or off). In Nov/2006 the x11vnc [703]-nodpms option was added + suspend, or off). In Nov/2006 the x11vnc [705]-nodpms option was added as a workaround. Normally it is a good thing that the monitor powers down (since x11vnc can still poll the framebuffer in this state), but if you experience the kdesktop_lock problem you can specify the @@ -5795,13 +5804,13 @@ EndSection This appears to be because the 3D OpenGL/GLX hardware screen updates do not get reported via the XDAMAGE mechanism. So this is a bug in - [704]beryl or XDAMAGE/Xorg or the (possibly 3rd party) video card + [706]beryl or XDAMAGE/Xorg or the (possibly 3rd party) video card driver. - As a workaround apply the [705]-noxdamage option. As of Feb/2007 + As a workaround apply the [707]-noxdamage option. As of Feb/2007 x11vnc will try to autodetect the problem and disable XDAMAGE if is appears to be missing a lot of updates. But if you know you are using - beryl you might as well always supply -noxdamage. Thanks to [706]this + beryl you might as well always supply -noxdamage. Thanks to [708]this user who reported the problem and discovered the workaround. Q-100: Can I use x11vnc to view my VMWare session remotely? @@ -5815,9 +5824,9 @@ EndSection * Fullscreen mode The way VMWare does Fullscreen mode on Linux is to display the Guest - desktop in a separate Virtual Console (e.g. VC 8) (see [707]this FAQ + desktop in a separate Virtual Console (e.g. VC 8) (see [709]this FAQ on VC's for background). Unfortunately, this Fullscreen VC is not an X - server. So x11vnc cannot access it (however, [708]see this discussion + server. So x11vnc cannot access it (however, [710]see this discussion of -rawfb for a possible workaround). x11vnc works fine with "Normal X application window" and "Quick-Switch mode" because these use X. @@ -5838,13 +5847,13 @@ EndSection improve response. One can also cut the display depth (e.g. to 16bpp) in this 2nd X session to improve video performance. This 2nd X session emulates Fullscreen mode to some degree and can be viewed via x11vnc - as long as the VMWare X session [709]is in the active VC. + as long as the VMWare X session [711]is in the active VC. Also note that with a little bit of playing with "xwininfo -all -children" output one can extract the (non-toplevel) windowid of the of the Guest desktop only when VMWare is running as a normal X application. Then one can export just the guest desktop (i.e. without - the VMWare menu buttons) by use of the [710]-id windowid option. The + the VMWare menu buttons) by use of the [712]-id windowid option. The caveats are the X session VMWare is in must be in the active VC and the window must be fully visible, so this mode is not terribly convenient, but could be useful in some circumstances (e.g. running @@ -5860,10 +5869,10 @@ EndSection controlled) via VNC with x11vnc? As of Apr/2005 there is support for this. Two options were added: - "[711]-rawfb string" (to indicate the raw framembuffer device, file, - etc. and its parameters) and "[712]-pipeinput command" (to provide an + "[713]-rawfb string" (to indicate the raw framembuffer device, file, + etc. and its parameters) and "[714]-pipeinput command" (to provide an external program that will inject or otherwise process mouse and - keystroke input). Some useful [713]-pipeinput schemes, VID, CONSOLE, + keystroke input). Some useful [715]-pipeinput schemes, VID, CONSOLE, and UINPUT, have since been built into x11vnc for convenience. This non-X mode for x11vnc is somewhat experimental because it is so @@ -5901,9 +5910,9 @@ EndSection access method). Only use file if map isn't working. BTW, "mmap" is an alias for "map" and if you do not supply a type and the file exists, map is assumed (see the -help output and below for some exceptions to - this). The "snap:" setting applies the [714]-snapfb option with + this). The "snap:" setting applies the [716]-snapfb option with "file:" type reading (this is useful for exporting webcams or TV tuner - video; see [715]the next FAQ for more info). + video; see [717]the next FAQ for more info). Also, if the string is of the form "setup:cmd" then cmd is run and the first line of its output retrieved and used as the rawfb string. This @@ -5947,7 +5956,7 @@ EndSection screen to either shm or a mapped file. The format of these is XWD and so the initial header should be skipped. BTW, since XWD is not strictly RGB the view will only be approximate, but usable. Of course - for the case of Xvfb x11vnc can poll it much better via the [716]X + for the case of Xvfb x11vnc can poll it much better via the [718]X API, but you get the idea. By default in -rawfb mode x11vnc will actually close any X display it @@ -5976,13 +5985,13 @@ EndSection tty1-tty6), or X graphical display (usually starting at tty7). In addition to the text console other graphical ones may be viewed and interacted with as well, e.g. DirectFB or SVGAlib apps, VMWare non-X - fullscreen, or [717]Qt-embedded apps (PDAs/Handhelds). By default the + fullscreen, or [719]Qt-embedded apps (PDAs/Handhelds). By default the pipeinput mechanisms UINPUT and CONSOLE (keystrokes only) are automatically attempted in this mode under "-rawfb console". The Video4Linux Capture device, /dev/video0, etc is either a Webcam or a TV capture device and needs to have its driver enabled in the - kernel. See [718]this FAQ for details. If specified via "-rawfb Video" + kernel. See [720]this FAQ for details. If specified via "-rawfb Video" then the pipeinput method "VID" is applied (it lets you change video parameters dynamically via keystrokes). @@ -5990,10 +5999,10 @@ EndSection also useful in testing. - All of the above [719]-rawfb options are just for viewing the raw + All of the above [721]-rawfb options are just for viewing the raw framebuffer (although some of the aliases do imply keystroke and mouse pipeinput methods). That may be enough for certain applications of - this feature (e.g. suppose a [720]video camera mapped its framebuffer + this feature (e.g. suppose a [722]video camera mapped its framebuffer into memory and you just wanted to look at it via VNC). To handle the pointer and keyboard input from the viewer users the "-pipeinput cmd" option was added to indicate a helper program to @@ -6031,7 +6040,7 @@ EndSection keystrokes into the Linux console (e.g. the virtual consoles: /dev/tty1, /dev/tty2, etc) in x11vnc/misc/vcinject.pl. It is based on the vncterm/LinuxVNC.c program also in the libvncserver CVS. So to - view and interact with VC #2 (assuming it is the [721]active VC) one + view and interact with VC #2 (assuming it is the [723]active VC) one can run something like: x11vnc -rawfb map:/dev/fb0@1024x768x16 -pipeinput './vcinject.pl 2' @@ -6086,7 +6095,7 @@ EndSection better to use the more accurate and faster LinuxVNC program. The advantage x11vnc -rawfb might have is that it can allow interaction with a non-text application, e.g. one based on SVGAlib or - [722]Qt-embedded Also, for example the [723]VMWare Fullscreen mode is + [724]Qt-embedded Also, for example the [725]VMWare Fullscreen mode is actually viewable under -rawfb and can be interacted with if uinput is enabled. @@ -6106,9 +6115,9 @@ EndSection Q-102: Can I export via VNC a Webcam or TV tuner framebuffer using x11vnc? - Yes, this is possible to some degree with the [724]-rawfb option. + Yes, this is possible to some degree with the [726]-rawfb option. There is no X11 involved: snapshots from the video capture device are - used for the screen image data. See the [725]previous FAQ on -rawfb + used for the screen image data. See the [727]previous FAQ on -rawfb for background. For best results, use x11vnc version 0.8.1 or later. Roughly, one would do something like this: @@ -6120,7 +6129,7 @@ EndSection snapshot to a file that you point -rawfb to; ask me if it is not clear what to do). - The "snap:" enforces [726]-snapfb mode which appears to be necessary. + The "snap:" enforces [728]-snapfb mode which appears to be necessary. The read pointer for video capture devices cannot be repositioned (which would be needed for scanline polling), but you can read a full frame of data from the device. @@ -6142,7 +6151,7 @@ EndSection Many video4linux drivers tend to set the framebuffer to be 24bpp (as opposed to 32bpp). Since this can cause problems with VNC viewers, - etc, the [727]-24to32 option will be automatically imposed when in + etc, the [729]-24to32 option will be automatically imposed when in 24bpp. Note that by its very nature, video capture involves rapid change in @@ -6150,7 +6159,7 @@ EndSection wavering in brightness is always happening. This can lead to much network bandwidth consumption for the VNC traffic and also local CPU and I/O resource usage. You may want to experiment with "dialing down" - the framerate via the [728]-wait, [729]-slow_fb, or [730]-defer + the framerate via the [730]-wait, [731]-slow_fb, or [732]-defer options. Decreasing the window size and bpp also helps. @@ -6239,7 +6248,7 @@ EndSection format to HI240, RGB565, RGB24, RGB32, RGB555, and GREY respectively. See -rawfb video for details. - See also the [731]-freqtab option to supply your own xawtv channel to + See also the [733]-freqtab option to supply your own xawtv channel to frequency mappings for your country (only ntsc-cable-us is built into x11vnc). @@ -6248,7 +6257,7 @@ EndSection running on my handheld or PC using the Linux console framebuffer (i.e. not X11)? - Yes, the basic method for this is the [732]-rawfb scheme where the + Yes, the basic method for this is the [734]-rawfb scheme where the Linux console framebuffer (usually /dev/fb0) is polled and the uinput driver is used to inject keystrokes and mouse input. Often you will just have to type: @@ -6261,7 +6270,7 @@ EndSection x11vnc -rawfb /dev/fb0@640x480x16 Also, to force usage of the uinput injection method use "-pipeinput - UINPUT". See the [733]-pipeinput description for tunable parameters, + UINPUT". See the [735]-pipeinput description for tunable parameters, etc. One problem with the x11vnc uinput scheme is that it cannot guess the @@ -6277,7 +6286,7 @@ EndSection Even with the correct acceleration setting there is stil some drift (probably because of the mouse threshold where the acceleration kicks in) and so x11vnc needs to reposition the cursor from 0,0 about 5 - times a second. See the [734]-pipeinput UINPUT option for tuning + times a second. See the [736]-pipeinput UINPUT option for tuning parameters that can be set (there are some experimental thresh=N tuning parameters as well) @@ -6311,7 +6320,7 @@ EndSection Q-104: Now that non-X11 devices can be exported via VNC using x11vnc, can I build it with no dependencies on X11 header files and libraries? - Yes, as of Jul/2006 x11vnc enables building for [735]-rawfb only + Yes, as of Jul/2006 x11vnc enables building for [737]-rawfb only support. Just do something like when building: ./configure --without-x (plus any other flags) make @@ -6327,11 +6336,11 @@ EndSection Yes, since Nov/2006 in the development tree (x11vnc-0.8.4 tarball) there is support for native Mac OS X Aqua/Quartz displays using the - [736]-rawfb mechanism described above. The mouse and keyboard input is + [738]-rawfb mechanism described above. The mouse and keyboard input is acheived via Mac OS X API's. - So you can use x11vnc as an alternative to [737]OSXvnc (aka Vine - Server), or [738]Apple Remote Desktop (ARD). Perhaps there is some + So you can use x11vnc as an alternative to [739]OSXvnc (aka Vine + Server), or [740]Apple Remote Desktop (ARD). Perhaps there is some x11vnc feature you'd like to use on Mac OS X, etc. For a number of activities (e.g. window drags) it seems to be faster than OSXvnc. @@ -6341,7 +6350,7 @@ EndSection (XDarwin) running on Mac OS X (people often install this software to display remote X11 apps on their Mac OS X system, or use some old favorites locally such as xterm). However in this case x11vnc will - only work reasonably in single window [739]-id windowid mode (and the + only work reasonably in single window [741]-id windowid mode (and the window may need to have mouse focus). If you do not have the DISPLAY env. variable set, x11vnc will assume @@ -6355,9 +6364,9 @@ EndSection ./configure --without-x make - Win2VNC/x2vnc: One handy use is to use the [740]-nofb mode to + Win2VNC/x2vnc: One handy use is to use the [742]-nofb mode to redirect mouse and keyboard input to a nearby Mac (i.e. one to the - side of your desk) via [741]x2vnc or Win2VNC. See [742]this FAQ for + side of your desk) via [743]x2vnc or Win2VNC. See [744]this FAQ for more info. Options: Here are the Mac OS X specific x11vnc options: @@ -6431,13 +6440,13 @@ rm -f $tmp performance for the case of a large number of simultaneous VNC viewers (e.g. classroom broadcasting or a large demo)? - Yes, as of Feb/2007 there is the "[743]-reflect host:N" option to + Yes, as of Feb/2007 there is the "[745]-reflect host:N" option to connect to the VNC server "host:N" (either another x11vnc or any other VNC server) and re-export it. VNC viewers then connect to the x11vnc(s) running -reflect. The -reflect option is the same as: "-rawfb vnc:host:N". See the - [744]-rawfb description under "VNC HOST" for more details. + [746]-rawfb description under "VNC HOST" for more details. You can replace "host:N" with "listen" or "listen:port" for reverse connections. @@ -6498,20 +6507,20 @@ rm -f $tmp re-exports via VNC to its clients C). However, CopyRect and CursorShape encodings are preserved in the reflection and that helps. Dragging windows with the mouse can be a problem (especially if S is - not doing wireframing somehow, consider [745]-nodragging if the + not doing wireframing somehow, consider [747]-nodragging if the problem is severe) For a really fast reflector/repeater it would have to be implemented from scratch with performance in mind. See these other projects: - [746]http://sourceforge.net/projects/vnc-reflector/, - [747]http://www.tightvnc.com/projector/ (closed source?), - [748]http://www.ultravnc.com/addons/repeater.html (seems to be a NAT g + [748]http://sourceforge.net/projects/vnc-reflector/, + [749]http://www.tightvnc.com/projector/ (closed source?), + [750]http://www.ultravnc.com/addons/repeater.html (seems to be a NAT g ateway and not a broadcaster?) Automation via Reverse Connections: Instead of having the R's connect directly to S and then the C's connect directly to the R they should use, some convenience can be achieved by using reverse - connections (the x11vnc "[749]"-connect host1,host2,..." option). + connections (the x11vnc "[751]"-connect host1,host2,..." option). Suppose all the clients "C" are started up in Listen mode: client1> vncviewer -listen client2> vncviewer -listen @@ -6546,11 +6555,11 @@ ateway and not a broadcaster?) As of Jan/2004 x11vnc supports the "CutText" part of the rfb protocol. Furthermore, x11vnc is able to hold the PRIMARY and CLIPBOARD selection (Xvnc does not seem to do this). If you don't want the - Clipboard/Selection exchanged use the [750]-nosel option. If you don't + Clipboard/Selection exchanged use the [752]-nosel option. If you don't want the PRIMARY selection to be polled for changes use the - [751]-noprimary option. (with a similar thing for CLIPBOARD). You can - also fine-tune it a bit with the [752]-seldir dir option and also - [753]-input. + [753]-noprimary option. (with a similar thing for CLIPBOARD). You can + also fine-tune it a bit with the [754]-seldir dir option and also + [755]-input. You may need to watch out for desktop utilities such as KDE's "Klipper" that do odd things with the selection, clipboard, and @@ -6562,7 +6571,7 @@ ateway and not a broadcaster?) Yes, it is possible with a number of tools that record VNC and transform it to swf format or others. One such popular tool is - [754]pyvnc2swf. There are a number of [755]tutorials on how to do + [756]pyvnc2swf. There are a number of [757]tutorials on how to do this. Another option is to use the vnc2mpg that comes in the LibVNCServer package. An important thing to remember when doing this is that tuning @@ -6578,7 +6587,7 @@ ateway and not a broadcaster?) do work to some degree under Wine on Linux). TightVNC file transfer is off by default, if you want to enable it use - the [756]-nofilexfer option. + the [758]-nofilexfer option. UltraVNC file transfer is off by default, to enable it use something like "-rfbversion 3.6 -permitfiletransfer" @@ -6612,7 +6621,7 @@ ateway and not a broadcaster?) these extensions you will need to supply this option to x11vnc: -rfbversion 3.6 - Or use [757]-ultrafilexfer which is an alias for the above option and + Or use [759]-ultrafilexfer which is an alias for the above option and "-permitfiletransfer". UltraVNC evidently treats any other RFB version number as non-UltraVNC. @@ -6624,9 +6633,9 @@ ateway and not a broadcaster?) * 1/n Server Scaling * rfbEncodingUltra compression encoding - To disable SingleWindow and ServerInput use [758]-noultraext (the + To disable SingleWindow and ServerInput use [760]-noultraext (the others are managed by LibVNCServer). See this option too: - [759]-noserverdpms. + [761]-noserverdpms. Q-111: Can I (temporarily) mount my local (viewer-side) Windows/Samba @@ -6635,7 +6644,7 @@ ateway and not a broadcaster?) You will have to use an external network redirection for this. Filesystem mounting is not part of the VNC protocol. - We show a simple [760]Samba example here. + We show a simple [762]Samba example here. First you will need a tunnel to redirect the SMB requests from the remote machine to the one you sitting at. We use an ssh tunnel: @@ -6672,7 +6681,7 @@ d,ip=127.0.0.1,port=1139 far-away> smbumount /home/fred/smb-haystack-pub At some point we hope to fold some automation for SMB ssh redir setup - into the [761]Enhanced TightVNC Viewer (ssvnc) package we provide (as + into the [763]Enhanced TightVNC Viewer (ssvnc) package we provide (as of Sep 2006 it is there for testing). @@ -6682,7 +6691,7 @@ d,ip=127.0.0.1,port=1139 You will have to use an external network redirection for this. Printing is not part of the VNC protocol. - We show a simple Unix to Unix [762]CUPS example here. Non-CUPS port + We show a simple Unix to Unix [764]CUPS example here. Non-CUPS port redirections (e.g. LPD) should also be possible, but may be a bit more tricky. If you are viewing on Windows SMB and don't have a local cups server it may be trickier still (see below). @@ -6754,7 +6763,7 @@ d,ip=127.0.0.1,port=1139 "localhost". At some point we hope to fold some automation for CUPS ssh redir setup - into the [763]Enhanced TightVNC Viewer (ssvnc) package we provide (as + into the [765]Enhanced TightVNC Viewer (ssvnc) package we provide (as of Sep 2006 it is there for testing). @@ -6855,7 +6864,7 @@ or: the applications will fail to run because LD_PRELOAD will point to libraries of the wrong wordsize. * At some point we hope to fold some automation for esd or artsd ssh - redir setup into the [764]Enhanced TightVNC Viewer (ssvnc) package + redir setup into the [766]Enhanced TightVNC Viewer (ssvnc) package we provide (as of Sep/2006 it is there for testing). @@ -6867,9 +6876,9 @@ or: in Solaris, see Xserver(1) for how to turn it on via +kb), and so you won't hear them if the extension is not present. - If you don't want to hear the beeps use the [765]-nobell option. If + If you don't want to hear the beeps use the [767]-nobell option. If you want to hear the audio from the remote applications, consider - trying a [766]redirector such as esd. + trying a [768]redirector such as esd. @@ -7410,248 +7419,250 @@ References 522. http://www.karlrunge.com/x11vnc/x11vnc_opts.html#opt-find 523. http://www.karlrunge.com/x11vnc/x11vnc_opts.html#opt-unixpw 524. http://www.karlrunge.com/x11vnc/index.html#faq-unix-passwords - 525. http://www.karlrunge.com/x11vnc/x11vnc_opts.html#opt-users - 526. http://www.karlrunge.com/x11vnc/index.html#faq-ssl-tunnel-int - 527. http://www.karlrunge.com/x11vnc/x11vnc_opts.html#opt-localhost - 528. http://www.karlrunge.com/x11vnc/x11vnc_opts.html#opt-unixpw - 529. http://www.karlrunge.com/x11vnc/index.html#faq-xvfb - 530. http://www.karlrunge.com/x11vnc/index.html#ss_vncviewer - 531. http://www.karlrunge.com/x11vnc/x11vnc_opts.html#opt-create - 532. http://www.karlrunge.com/x11vnc/x11vnc_opts.html#opt-svc - 533. http://www.karlrunge.com/x11vnc/x11vnc_opts.html#opt-display_WAIT - 534. http://www.karlrunge.com/x11vnc/faq-linuxvc - 535. http://www.karlrunge.com/x11vnc/x11vnc_opts.html#opt-xdmsvc - 536. http://www.karlrunge.com/x11vnc/x11vnc_opts.html#opt-loop - 537. http://www.karlrunge.com/x11vnc/x11vnc_opts.html#opt-loop - 538. http://www.karlrunge.com/x11vnc/x11vnc_opts.html#opt-svc - 539. http://www.karlrunge.com/x11vnc/x11vnc_opts.html#opt-httpdir - 540. http://www.karlrunge.com/x11vnc/x11vnc_opts.html#opt-http - 541. http://www.karlrunge.com/x11vnc/x11vnc_opts.html#opt-connect - 542. http://www.karlrunge.com/x11vnc/x11vnc_opts.html#opt-remote - 543. http://www.karlrunge.com/x11vnc/x11vnc_opts.html#opt-vncconnect - 544. http://www.karlrunge.com/x11vnc/index.html#findcreatedisplay - 545. http://www.karlrunge.com/x11vnc/x11vnc_opts.html#opt-display_WAIT - 546. http://www.karlrunge.com/x11vnc/x11vnc_opts.html#opt-find - 547. http://www.karlrunge.com/x11vnc/x11vnc_opts.html#opt-create - 548. http://www.karlrunge.com/x11vnc/x11vnc_opts.html#opt-svc - 549. http://www.karlrunge.com/x11vnc/x11vnc_opts.html#opt-xdmsvc - 550. http://www.karlrunge.com/x11vnc/x11vnc_opts.html#opt-add_keysyms - 551. http://www.karlrunge.com/x11vnc/index.html#findcreatedisplay - 552. http://www.karlrunge.com/x11vnc/index.html#faq-linuxvc - 553. http://www.karlrunge.com/x11vnc/Xdummy - 554. http://www.karlrunge.com/x11vnc/index.html#display-manager-continuously - 555. http://www.karlrunge.com/x11vnc/index.html#findcreatedisplay - 556. http://www.karlrunge.com/x11vnc/x11vnc_opts.html#opt-display_WAIT - 557. http://www.karlrunge.com/x11vnc/x11vnc_opts.html#opt-find - 558. http://www.karlrunge.com/x11vnc/x11vnc_opts.html#opt-create - 559. http://www.karlrunge.com/x11vnc/x11vnc_opts.html#opt-svc - 560. http://www.karlrunge.com/x11vnc/x11vnc_opts.html#opt-xdmsvc - 561. http://www.karlrunge.com/x11vnc/shm_clear - 562. http://www.karlrunge.com/x11vnc/x11vnc_opts.html#opt-onetile - 563. http://www.karlrunge.com/x11vnc/x11vnc_opts.html#opt-noshm - 564. http://www.karlrunge.com/x11vnc/index.html#faq-noshm - 565. http://www.karlrunge.com/x11vnc/x11vnc_opts.html#opt-nap - 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721. http://www.karlrunge.com/x11vnc/index.html#faq-linuxvc - 722. http://www.karlrunge.com/x11vnc/index.html#faq-qt-embedded - 723. http://www.karlrunge.com/x11vnc/index.html#faq-vmware - 724. http://www.karlrunge.com/x11vnc/x11vnc_opts.html#opt-rawfb - 725. http://www.karlrunge.com/x11vnc/index.html#faq-rawfb - 726. http://www.karlrunge.com/x11vnc/x11vnc_opts.html#opt-snapfb - 727. http://www.karlrunge.com/x11vnc/x11vnc_opts.html#opt-24to32 - 728. http://www.karlrunge.com/x11vnc/x11vnc_opts.html#opt-wait - 729. http://www.karlrunge.com/x11vnc/x11vnc_opts.html#opt-slow_fb - 730. http://www.karlrunge.com/x11vnc/x11vnc_opts.html#opt-defer - 731. http://www.karlrunge.com/x11vnc/x11vnc_opts.html#opt-freqtab - 732. http://www.karlrunge.com/x11vnc/index.html#faq-rawfb - 733. http://www.karlrunge.com/x11vnc/x11vnc_opts.html#opt-pipeinput - 734. http://www.karlrunge.com/x11vnc/x11vnc_opts.html#opt-pipeinput - 735. http://www.karlrunge.com/x11vnc/x11vnc_opts.html#opt-rawfb - 736. http://www.karlrunge.com/x11vnc/x11vnc_opts.html#opt-rawfb - 737. http://www.redstonesoftware.com/vnc.html - 738. http://www.apple.com/remotedesktop/ - 739. http://www.karlrunge.com/x11vnc/x11vnc_opts.html#opt-id - 740. http://www.karlrunge.com/x11vnc/x11vnc_opts.html#opt-id - 741. http://fredrik.hubbe.net/x2vnc.html - 742. http://www.karlrunge.com/x11vnc/index.html#faq-win2vnc - 743. http://www.karlrunge.com/x11vnc/x11vnc_opts.html#opt-reflect - 744. http://www.karlrunge.com/x11vnc/x11vnc_opts.html#opt-rawfb - 745. http://www.karlrunge.com/x11vnc/x11vnc_opts.html#opt-nodragging - 746. http://sourceforge.net/projects/vnc-reflector/ - 747. http://www.tightvnc.com/projector/ - 748. http://www.ultravnc.com/addons/repeater.html - 749. http://www.karlrunge.com/x11vnc/x11vnc_opts.html#opt-connect - 750. http://www.karlrunge.com/x11vnc/x11vnc_opts.html#opt-nosel - 751. http://www.karlrunge.com/x11vnc/x11vnc_opts.html#opt-noprimary - 752. http://www.karlrunge.com/x11vnc/x11vnc_opts.html#opt-seldir - 753. http://www.karlrunge.com/x11vnc/x11vnc_opts.html#opt-input - 754. http://www.unixuser.org/~euske/vnc2swf/ - 755. http://wolphination.com/linux/2006/06/30/how-to-record-videos-of-your-desktop/ - 756. http://www.karlrunge.com/x11vnc/x11vnc_opts.html#opt-nofilexfer - 757. http://www.karlrunge.com/x11vnc/x11vnc_opts.html#opt-ultrafilexfer - 758. http://www.karlrunge.com/x11vnc/x11vnc_opts.html#opt-noultraext - 759. http://www.karlrunge.com/x11vnc/x11vnc_opts.html#opt-noserverdpms - 760. http://www.samba.org/ - 761. http://www.karlrunge.com/x11vnc/enhanced_tightvnc_viewer.html - 762. http://www.cups.org/ + 721. http://www.karlrunge.com/x11vnc/x11vnc_opts.html#opt-rawfb + 722. http://www.karlrunge.com/x11vnc/index.html#faq-video + 723. http://www.karlrunge.com/x11vnc/index.html#faq-linuxvc + 724. http://www.karlrunge.com/x11vnc/index.html#faq-qt-embedded + 725. http://www.karlrunge.com/x11vnc/index.html#faq-vmware + 726. http://www.karlrunge.com/x11vnc/x11vnc_opts.html#opt-rawfb + 727. http://www.karlrunge.com/x11vnc/index.html#faq-rawfb + 728. http://www.karlrunge.com/x11vnc/x11vnc_opts.html#opt-snapfb + 729. http://www.karlrunge.com/x11vnc/x11vnc_opts.html#opt-24to32 + 730. http://www.karlrunge.com/x11vnc/x11vnc_opts.html#opt-wait + 731. http://www.karlrunge.com/x11vnc/x11vnc_opts.html#opt-slow_fb + 732. http://www.karlrunge.com/x11vnc/x11vnc_opts.html#opt-defer + 733. http://www.karlrunge.com/x11vnc/x11vnc_opts.html#opt-freqtab + 734. http://www.karlrunge.com/x11vnc/index.html#faq-rawfb + 735. http://www.karlrunge.com/x11vnc/x11vnc_opts.html#opt-pipeinput + 736. http://www.karlrunge.com/x11vnc/x11vnc_opts.html#opt-pipeinput + 737. http://www.karlrunge.com/x11vnc/x11vnc_opts.html#opt-rawfb + 738. http://www.karlrunge.com/x11vnc/x11vnc_opts.html#opt-rawfb + 739. http://www.redstonesoftware.com/vnc.html + 740. http://www.apple.com/remotedesktop/ + 741. http://www.karlrunge.com/x11vnc/x11vnc_opts.html#opt-id + 742. http://www.karlrunge.com/x11vnc/x11vnc_opts.html#opt-id + 743. http://fredrik.hubbe.net/x2vnc.html + 744. http://www.karlrunge.com/x11vnc/index.html#faq-win2vnc + 745. http://www.karlrunge.com/x11vnc/x11vnc_opts.html#opt-reflect + 746. http://www.karlrunge.com/x11vnc/x11vnc_opts.html#opt-rawfb + 747. http://www.karlrunge.com/x11vnc/x11vnc_opts.html#opt-nodragging + 748. http://sourceforge.net/projects/vnc-reflector/ + 749. http://www.tightvnc.com/projector/ + 750. http://www.ultravnc.com/addons/repeater.html + 751. http://www.karlrunge.com/x11vnc/x11vnc_opts.html#opt-connect + 752. http://www.karlrunge.com/x11vnc/x11vnc_opts.html#opt-nosel + 753. http://www.karlrunge.com/x11vnc/x11vnc_opts.html#opt-noprimary + 754. http://www.karlrunge.com/x11vnc/x11vnc_opts.html#opt-seldir + 755. http://www.karlrunge.com/x11vnc/x11vnc_opts.html#opt-input + 756. http://www.unixuser.org/~euske/vnc2swf/ + 757. http://wolphination.com/linux/2006/06/30/how-to-record-videos-of-your-desktop/ + 758. http://www.karlrunge.com/x11vnc/x11vnc_opts.html#opt-nofilexfer + 759. http://www.karlrunge.com/x11vnc/x11vnc_opts.html#opt-ultrafilexfer + 760. http://www.karlrunge.com/x11vnc/x11vnc_opts.html#opt-noultraext + 761. http://www.karlrunge.com/x11vnc/x11vnc_opts.html#opt-noserverdpms + 762. http://www.samba.org/ 763. http://www.karlrunge.com/x11vnc/enhanced_tightvnc_viewer.html - 764. http://www.karlrunge.com/x11vnc/enhanced_tightvnc_viewer.html - 765. http://www.karlrunge.com/x11vnc/x11vnc_opts.html#opt-nobell - 766. http://www.karlrunge.com/x11vnc/index.html#faq-sound + 764. http://www.cups.org/ + 765. http://www.karlrunge.com/x11vnc/enhanced_tightvnc_viewer.html + 766. http://www.karlrunge.com/x11vnc/enhanced_tightvnc_viewer.html + 767. http://www.karlrunge.com/x11vnc/x11vnc_opts.html#opt-nobell + 768. http://www.karlrunge.com/x11vnc/index.html#faq-sound ======================================================================= http://www.karlrunge.com/x11vnc/chainingssh.html: @@ -9345,7 +9356,7 @@ Unix and Mac OS X: Unpack the archive: - % gzip -dc ssvnc-1.0.11.tar.gz | tar xvf - + % gzip -dc ssvnc-1.0.12.tar.gz | tar xvf - Run the GUI: @@ -9353,7 +9364,7 @@ Unix and Mac OS X: % ./ssvnc/MacOSX/ssvnc (for Mac OS X) - The smaller file "ssvnc_no_windows-1.0.11.tar.gz" could have been + The smaller file "ssvnc_no_windows-1.0.12.tar.gz" could have been used as well. On MacOSX there is also a SSVNC.app directory icon you can click on @@ -9364,7 +9375,7 @@ Windows: Unzip, using WinZip or a similar utility, the zip file: - ssvnc-1.0.11.zip + ssvnc-1.0.12.zip Run the GUI, e.g.: @@ -9376,7 +9387,7 @@ Windows: select Open, and then OK to launch it. - The smaller file "ssvnc_windows_only-1.0.11.zip" could have been used + The smaller file "ssvnc_windows_only-1.0.12.zip" could have been used as well. You can make a Windows shortcut to this program if you want to. @@ -9521,22 +9532,24 @@ Enhanced TightVNC viewer options: Downloading: This project can be downloaded here, choose the archive file bundle that best suits you (e.g. no source code, windows only, unix only, zip, tar etc): - [12]ssvnc_windows_only-1.0.11.zip Windows Binaries Only. No source incl + [12]ssvnc_windows_only-1.0.12.zip Windows Binaries Only. No source incl uded (~6MB) - [13]ssvnc_no_windows-1.0.11.tar.gz Unix and Mac OS X Only. No Windows bin + [13]ssvnc_no_windows-1.0.12.tar.gz Unix and Mac OS X Only. No Windows bin aries. Source included. (~3.5MB) - [14]ssvnc_unix_only-1.0.11.tar.gz Unix Binaries Only. No source incl + [14]ssvnc_unix_only-1.0.12.tar.gz Unix Binaries Only. No source incl uded. (~1MB) - [15]ssvnc_unix_minimal-1.0.11.tar.gz Unix Minimal. You must supply your ow + [15]ssvnc_unix_minimal-1.0.12.tar.gz Unix Minimal. You must supply your ow n vncviewer and stunnel. (~0.1MB) - [16]ssvnc-1.0.11.tar.gz All Unix, Mac OS X, and Windows binari + [16]ssvnc-1.0.12.tar.gz All Unix, Mac OS X, and Windows binari es and source TGZ. (~10MB) - [17]ssvnc-1.0.11.zip All Unix, Mac OS X, and Windows binari + [17]ssvnc-1.0.12.zip All Unix, Mac OS X, and Windows binari es and source ZIP. (~10MB) - [18]ssvnc_all-1.0.11.zip All Unix, Mac OS X, and Windows binari + [18]ssvnc_all-1.0.12.zip All Unix, Mac OS X, and Windows binari es and source AND full archives in the zip dir. (~12MB) + You can try for an older one by replacing, e.g. ".12" by ".11", etc. + Sorry for the inconvenience of lumping all the Unix binaries and source together in one archive. To save space you can delete the src subdirectory if you like. @@ -9587,7 +9600,7 @@ es and source AND full archives in the zip dir. (~12MB) [26]http://sourceforge.net/projects/cotvnc/ It is my belief (but I cannot be absolutely sure) that the bundle - ssvnc_no_windows-1.0.11.tar.gz contains no cryptographic software + ssvnc_no_windows-1.0.12.tar.gz contains no cryptographic software (again, if your situation warrants, you will need to check). This "no_windows" tarball only contains software (from the above URL's and elsewhere) that will use cryptographic software (libraries) already @@ -9746,7 +9759,7 @@ Unix and Mac OS X: Unpack the archive: - % gzip -dc ssvnc-1.0.11.tar.gz | tar xvf - + % gzip -dc ssvnc-1.0.12.tar.gz | tar xvf - Run the GUI: @@ -9756,7 +9769,7 @@ Unix and Mac OS X: On MacOSX you could also click on the SSVNC app in the Finder. - The smaller file "ssvnc_no_windows-1.0.11.tar.gz" + The smaller file "ssvnc_no_windows-1.0.12.tar.gz" could have been used as well. @@ -9765,7 +9778,7 @@ Windows: Unzip, using WinZip or a similar utility, the zip file: - ssvnc-1.0.11.zip + ssvnc-1.0.12.zip Run the GUI, e.g.: @@ -9777,7 +9790,7 @@ Windows: select Open, and then OK to launch it. - The smaller file "ssvnc_windows_only-1.0.11.zip" + The smaller file "ssvnc_windows_only-1.0.12.zip" could have been used as well. You can make a Windows shortcut to this program if you want to. @@ -10000,13 +10013,13 @@ References 9. http://www.karlrunge.com/x11vnc/index.html#faq-smb-shares 10. http://www.karlrunge.com/x11vnc/index.html#faq-cups 11. http://www.karlrunge.com/x11vnc/index.html#faq-sound - 12. http://www.karlrunge.com/x11vnc/etv/ssvnc_windows_only-1.0.11.zip - 13. http://www.karlrunge.com/x11vnc/etv/ssvnc_no_windows-1.0.11.tar.gz - 14. http://www.karlrunge.com/x11vnc/etv/ssvnc_unix_only-1.0.11.tar.gz - 15. http://www.karlrunge.com/x11vnc/etv/ssvnc_unix_minimal-1.0.11.tar.gz - 16. http://www.karlrunge.com/x11vnc/etv/ssvnc-1.0.11.tar.gz - 17. http://www.karlrunge.com/x11vnc/etv/ssvnc-1.0.11.zip - 18. http://www.karlrunge.com/x11vnc/etv/ssvnc_all-1.0.11.zip + 12. http://www.karlrunge.com/x11vnc/etv/ssvnc_windows_only-1.0.12.zip + 13. http://www.karlrunge.com/x11vnc/etv/ssvnc_no_windows-1.0.12.tar.gz + 14. http://www.karlrunge.com/x11vnc/etv/ssvnc_unix_only-1.0.12.tar.gz + 15. http://www.karlrunge.com/x11vnc/etv/ssvnc_unix_minimal-1.0.12.tar.gz + 16. http://www.karlrunge.com/x11vnc/etv/ssvnc-1.0.12.tar.gz + 17. http://www.karlrunge.com/x11vnc/etv/ssvnc-1.0.12.zip + 18. http://www.karlrunge.com/x11vnc/etv/ssvnc_all-1.0.12.zip 19. http://www.karlrunge.com/x11vnc/etv/ssvnc 20. http://www.stunnel.org/ 21. http://stunnel.mirt.net/ @@ -10027,7 +10040,7 @@ x11vnc: a VNC server for real X displays Here are all of x11vnc command line options: % x11vnc -opts (see below for -help long descriptions) -x11vnc: allow VNC connections to real X11 displays. 0.8.5 lastmod: 2007-02-18 +x11vnc: allow VNC connections to real X11 displays. 0.8.5 lastmod: 2007-02-19 x11vnc options: -display disp -auth file -N @@ -10140,7 +10153,7 @@ libvncserver-tight-extension options: % x11vnc -help -x11vnc: allow VNC connections to real X11 displays. 0.8.5 lastmod: 2007-02-18 +x11vnc: allow VNC connections to real X11 displays. 0.8.5 lastmod: 2007-02-19 (type "x11vnc -opts" to just list the options.) diff --git a/x11vnc/x11vnc.1 b/x11vnc/x11vnc.1 index a68a30d..872ed68 100644 --- a/x11vnc/x11vnc.1 +++ b/x11vnc/x11vnc.1 @@ -2,7 +2,7 @@ .TH X11VNC "1" "February 2007" "x11vnc " "User Commands" .SH NAME x11vnc - allow VNC connections to real X11 displays - version: 0.8.5, lastmod: 2007-02-18 + version: 0.8.5, lastmod: 2007-02-19 .SH SYNOPSIS .B x11vnc [OPTION]... diff --git a/x11vnc/x11vnc.c b/x11vnc/x11vnc.c index 38a1fe5..0b292ba 100644 --- a/x11vnc/x11vnc.c +++ b/x11vnc/x11vnc.c @@ -950,7 +950,18 @@ static void check_rcfile(int argc, char **argv) { } static void immediate_switch_user(int argc, char* argv[]) { - int i; + int i, bequiet = 0; + for (i=1; i < argc; i++) { + if (strcmp(argv[i], "-inetd")) { + bequiet = 1; + } + if (strcmp(argv[i], "-quiet")) { + bequiet = 1; + } + if (strcmp(argv[i], "-q")) { + bequiet = 1; + } + } for (i=1; i < argc; i++) { char *u; @@ -976,7 +987,9 @@ static void immediate_switch_user(int argc, char* argv[]) { fprintf(stderr, "Could not switch to user: %s\n", u+1); exit(1); } else { - fprintf(stderr, "Switched to user: %s\n", u+1); + if (!bequiet) { + fprintf(stderr, "Switched to user: %s\n", u+1); + } started_as_root = 2; } free(u); diff --git a/x11vnc/x11vnc_defs.c b/x11vnc/x11vnc_defs.c index 3eb7b2a..22d98b6 100644 --- a/x11vnc/x11vnc_defs.c +++ b/x11vnc/x11vnc_defs.c @@ -15,7 +15,7 @@ int xtrap_base_event_type = 0; int xdamage_base_event_type = 0; /* date +'lastmod: %Y-%m-%d' */ -char lastmod[] = "0.8.5 lastmod: 2007-02-18"; +char lastmod[] = "0.8.5 lastmod: 2007-02-19"; /* X display info */ |