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authortpearson <tpearson@283d02a7-25f6-0310-bc7c-ecb5cbfe19da>2010-03-13 05:43:39 +0000
committertpearson <tpearson@283d02a7-25f6-0310-bc7c-ecb5cbfe19da>2010-03-13 05:43:39 +0000
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treedae169167c23ba7c61814101995de21d6abac2e8 /displayconfig/driver-options.txt
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Added KDE3 version of KDE Guidance utilities
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+Driver options:
+===================
+
+This document contains driver specific options for Xorg and XFree86 and what
+effect they are meant to have. These options are only valid in conjuntion with
+the specified driver and generally have no meaning / effect when used with
+other graphics drivers.
+
+o fbdev
+o fglrx (binary ATi driver)
+o i740
+o i810
+o mga
+o nv
+o nvidia
+o radeon
+o sis
+o vesa
+
+Driver fbdev:
+--------------
+(source: man fbdev)
+
+ Option "fbdev" "string"
+ The framebuffer device to use. Default: /dev/fb0.
+
+ Option "ShadowFB" "boolean"
+ Enable or disable use of the shadow framebuffer layer. Default: on.
+
+ Option "Rotate" "string"
+ Enable rotation of the display. The supported values are "CW" (clock‐
+ wise, 90 degrees), "UD" (upside down, 180 degrees) and "CCW" (counter
+ clockwise, 270 degrees). Implies use of the shadow framebuffer layer.
+ Default: off.
+
+
+Driver fglrx (ATi binary driver):
+----------------------------------
+
+Section "Device"
+ Identifier "Radeon 9600XT - fglrx"
+ Driver "fglrx"
+# ### generic DRI settings ###
+# === disable PnP Monitor ===
+ #Option "NoDDC"
+# === disable/enable XAA/DRI ===
+ Option "no_accel" "no"
+ Option "no_dri" "no"
+# === misc DRI settings ===
+ Option "mtrr" "off" # disable DRI mtrr mapper, driver has its own code for mtrr
+# ### FireGL DDX driver module specific settings ###
+# === Screen Management ===
+ Option "DesktopSetup" "0x00000000"
+ Option "MonitorLayout" "AUTO, AUTO"
+ Option "IgnoreEDID" "off"
+ Option "HSync2" ""
+ Option "VRefresh2" ""
+ Option "ScreenOverlap" "0"
+# === TV-out Management ===
+ Option "NoTV" "yes"
+ Option "TVStandard" "NTSC-M"
+ Option "TVHSizeAdj" "0"
+ Option "TVVSizeAdj" "0"
+ Option "TVHPosAdj" "0"
+ Option "TVVPosAdj" "0"
+ Option "TVHStartAdj" "0"
+ Option "TVColorAdj" "0"
+ Option "GammaCorrectionI" "0x00000000"
+ Option "GammaCorrectionII" "0x00000000"
+# === OpenGL specific profiles/settings ===
+ Option "Capabilities" "0x00000000"
+# === Video Overlay for the Xv extension ===
+ Option "VideoOverlay" "on"
+# === OpenGL Overlay ===
+# Note: When OpenGL Overlay is enabled, Video Overlay
+# will be disabled automatically
+ Option "OpenGLOverlay" "off"
+# === Center Mode (Laptops only) ===
+ Option "CenterMode" "off"
+# === Pseudo Color Visuals (8-bit visuals) ===
+ Option "PseudoColorVisuals" "off"
+# === QBS Management ===
+ Option "Stereo" "off"
+ Option "StereoSyncEnable" "1"
+# === FSAA Management ===
+ Option "FSAAEnable" "yes"
+ Option "FSAAScale" "4"
+ Option "FSAADisableGamma" "no"
+ Option "FSAACustomizeMSPos" "no"
+ Option "FSAAMSPosX0" "0.000000"
+ Option "FSAAMSPosY0" "0.000000"
+ Option "FSAAMSPosX1" "0.000000"
+ Option "FSAAMSPosY1" "0.000000"
+ Option "FSAAMSPosX2" "0.000000"
+ Option "FSAAMSPosY2" "0.000000"
+ Option "FSAAMSPosX3" "0.000000"
+ Option "FSAAMSPosY3" "0.000000"
+ Option "FSAAMSPosX4" "0.000000"
+ Option "FSAAMSPosY4" "0.000000"
+ Option "FSAAMSPosX5" "0.000000"
+ Option "FSAAMSPosY5" "0.000000"
+# === Misc Options ===
+ Option "UseFastTLS" "0"
+ Option "BlockSignalsOnLock" "on"
+ Option "UseInternalAGPGART" "yes"
+ Option "ForceGenericCPU" "no"
+ BusID "PCI:1:0:0" # vendor=1002, device=4152
+ Screen 0
+EndSection
+
+Driver i740:
+-------------
+(No info yet)
+
+
+Driver i810:
+-------------
+
+ Option "NoAccel" "boolean"
+ Disable or enable acceleration. Default: acceleration is enabled.
+
+ Option "SWCursor" "boolean"
+ Disable or enable software cursor. Default: software cursor is dis‐
+ able and a hardware cursor is used for configurations where the
+ hardware cursor is available.
+
+ Option "ColorKey" "integer"
+ This sets the default pixel value for the YUV video overlay key.
+ Default: undefined.
+
+ Option "CacheLines" "integer"
+ This allows the user to change the amount of graphics memory used for
+ 2D acceleration and video. Decreasing this amount leaves more for 3D
+ textures. Increasing it can improve 2D performance at the expense of
+ 3D performance. Default: depends on the resolution, depth, and
+ available video memory. The driver attempts to allocate at least
+ enough to hold two DVD-sized YUV buffers by default. The default
+ used for a specific configuration can be found by examining the Xorg
+ log file.
+
+ Option "DRI" "boolean"
+ Disable or enable DRI support. Default: DRI is enabled for configu‐
+ rations where it is supported.
+
+ The following driver Options are supported for the i810 and i815 chipsets:
+
+ Option "DDC" "boolean"
+ Disable or enable DDC support. Default: enabled.
+
+ Option "Dac6Bit" "boolean"
+ Enable or disable 6-bits per RGB for 8-bit modes. Default: 8-bits
+ per RGB for 8-bit modes.
+
+ Option "XvMCSurfaces" "integer"
+ This option enables XvMC. The integer parameter specifies the number
+ of surfaces to use. Valid values are 6 and 7. Default: XvMC is dis‐
+ abled.
+
+ The following driver Options are supported for the 830M and later chipsets:
+
+ Option "VBERestore" "boolean"
+ Enable or disable the use of VBE save/restore for saving and restor‐
+ ing the initial text mode. This is disabled by default because it
+ causes lockups on some platforms. However, there are some cases
+ where it must enabled for the correct restoration of the initial
+ video mode. If you are having a problem with that, try enabling this
+ option. Default: Disabled.
+
+ Option "VideoKey" "integer"
+ This is the same as the "ColorKey" option described above. It is
+ provided for compatibility with most other drivers.
+
+ Option "XVideo" "boolean"
+ Disable or enable XVideo support. Default: XVideo is enabled for
+ configurations where it is supported.
+
+ Option "MonitorLayout" "anystr"
+ Allow different monitor configurations. e.g. "CRT,LFP" will configure
+ a CRT on Pipe A and an LFP on Pipe B. Regardless of the primary
+ heads’ pipe it is always configured as "<PIPEA>,<PIPEB>". Addition‐
+ ally you can add different configurations such as "CRT+DFP,LFP" which
+ would put a digital flat panel and a CRT on pipe A, and a local flat
+ panel on pipe B. For single pipe configurations you can just specify
+ the monitors types on Pipe A, such as "CRT+DFP" which will enable the
+ CRT and DFP on Pipe A. Valid monitors are CRT, LFP, DFP, TV, CRT2,
+ LFP2, DFP2, TV2 and NONE. NOTE: Some configurations of monitor types
+ may fail, this depends on the Video BIOS and system configuration.
+ Default: Not configured, and will use the current head’s pipe and
+ monitor.
+
+ Option "Clone" "boolean"
+ Enable Clone mode on pipe B. This will setup the second head as a
+ complete mirror of the monitor attached to pipe A. NOTE: Video over‐
+ lay functions will not work on the second head in this mode. If you
+ require this, then use the MonitorLayout above and do (as an example)
+ "CRT+DFP,NONE" to configure both a CRT and DFP on Pipe A to achieve
+ local mirroring and disable the use of this option. Default: Clone
+ mode on pipe B is disabled.
+
+ Option "CloneRefresh" "integer"
+ When the Clone option is specified we can drive the second monitor at
+ a different refresh rate than the primary. Default: 60Hz.
+
+ Option "CheckLid" "boolean"
+ On mobile platforms it’s desirable to monitor the lid status and
+ switch the outputs accordingly when the lid is opened or closed. By
+ default this option is on, but may incur a very minor performance
+ penalty as we need to poll a register on the card to check for this
+ activity. It can be turned off using this option. This only works
+ with the 830M, 852GM and 855GM systems. Default: enabled.
+
+ Option "FlipPrimary" "boolean"
+ When using a dual pipe system, it may be preferable to switch the
+ primary screen to the alternate pipe to display on the other monitor
+ connection. NOTE: Using this option may cause text mode to be
+ restored incorrectly, and thus should be used with caution. Default:
+ disabled.
+
+ Option "DisplayInfo" "boolean"
+ It has been found that a certain BIOS call can lockup the Xserver
+ because of a problem in the Video BIOS. The log file will identify if
+ you are suffering from this problem and tell you to turn this option
+ off. Default: enabled
+
+ Option "DevicePresence" "boolean"
+ Tell the driver to perform an active detect of the currently con‐
+ nected monitors. This option is useful if the monitor was not con‐
+ nected when the machine has booted, but unfortunately it doesn’t
+ always work and is extremely dependent upon the Video BIOS. Default:
+ disabled
+
+
+Driver mga:
+------------
+
+ Option "ColorKey" "integer"
+ Set the colormap index used for the transparency key for the depth 8
+ plane when operating in 8+24 overlay mode. The value must be in the
+ range 2-255. Default: 255.
+
+ Option "HWCursor" "boolean"
+ Enable or disable the HW cursor. Default: on.
+
+ Option "MGASDRAM" "boolean"
+ Specify whether G100, G200 or G400 cards have SDRAM. The driver
+ attempts to auto-detect this based on the card’s PCI subsystem ID.
+ This option may be used to override that auto-detection. The mga
+ driver is not able to auto-detect the presence of of SDRAM on sec‐
+ ondary heads in multihead configurations so this option will often
+ need to be specified in multihead configurations. Default:
+ auto-detected.
+
+ Option "NoAccel" "boolean"
+ Disable or enable acceleration. Default: acceleration is enabled.
+
+ Option "NoHal" "boolean"
+ Disable or enable loading the "mga_hal" module. Default: the module
+ is loaded when available and when using hardware that it supports.
+
+ Option "OverclockMem"
+ Set clocks to values used by some commercial X Servers (G100, G200
+ and G400 only). Default: off.
+
+ Option "Overlay" "value"
+ Enable 8+24 overlay mode. Only appropriate for depth 24. Recognized
+ values are: "8,24", "24,8". Default: off. (Note: the G100 is unac‐
+ celerated in the 8+24 overlay mode due to a missing hardware fea‐
+ ture.)
+
+ Option "PciRetry" "boolean"
+ Enable or disable PCI retries. Default: off.
+
+ Option "Rotate" "CW"
+
+ Option "Rotate" "CCW"
+ Rotate the display clockwise or counterclockwise. This mode is unac‐
+ celerated. Default: no rotation.
+
+ Option "ShadowFB" "boolean"
+ Enable or disable use of the shadow framebuffer layer. Default: off.
+
+ Option "SyncOnGreen" "boolean"
+ Enable or disable combining the sync signals with the green signal.
+ Default: off.
+
+ Option "UseFBDev" "boolean"
+ Enable or disable use of on OS-specific fb interface (and is not sup‐
+ ported on all OSs). See fbdevhw(4x) for further information.
+ Default: off.
+
+ Option "VideoKey" "integer"
+ This sets the default pixel value for the YUV video overlay key.
+ Default: undefined.
+
+ Option "TexturedVideo" "boolean"
+ This has XvImage support use the texture engine rather than the video
+ overlay. This option is only supported by G200 and later chips, and
+ only at 16 and 32 bits per pixel. Default: off.
+
+
+Driver nv:
+-----------
+(source: man nv)
+ Option "HWCursor" "boolean"
+ Enable or disable the HW cursor. Default: on.
+
+ Option "NoAccel" "boolean"
+ Disable or enable acceleration. Default: acceleration is enabled.
+
+ Option "UseFBDev" "boolean"
+ Enable or disable use of on OS-specific fb interface (and is not sup-
+ ported on all OSs). See fbdevhw(4x) for further information.
+ Default: off.
+
+ Option "CrtcNumber" "integer"
+ GeForce2 MX, nForce2, Quadro4, GeForce4, Quadro FX and GeForce FX may
+ have two video outputs. The driver attempts to autodetect which one
+ the monitor is connected to. In the case that autodetection picks
+ the wrong one, this option may be used to force usage of a particular
+ output. The options are "0" or "1". Default: autodetected.
+
+ Option "FlatPanel" "boolean"
+ The driver usually can autodetect the presence of a digital flat
+ panel. In the case that this fails, this option can be used to force
+ the driver to treat the attached device as a digital flat panel.
+ With this driver, a digital flat panel will only work if it was
+ POSTed by the BIOS, that is, the machine must have booted to the
+ panel. If you have a dual head card you may also need to set the
+ option CrtcNumber described above. Default: off.
+
+ Option "FPDither" "boolean"
+ Many digital flat panels (particularly ones on laptops) have only 6
+ bits per component color resolution. This option tells the driver to
+ dither from 8 bits per component to 6 before the flat panel truncates
+ it. This is only supported in depth 24 on GeForce2 MX, nForce2,
+ GeForce4, Quadro4, Geforce FX and Quadro FX. Default: off.
+
+ Option "FPScale" "boolean"
+ Supported only on GeForce4, Quadro4, Geforce FX and Quadro FX. This
+ option tells to the driver to scale lower resolutions up to the flat
+ panel's native resolution. Default: on.
+
+ Option "Rotate" "CW"
+
+ Option "Rotate" "CCW"
+ Rotate the display clockwise or counterclockwise. This mode is unac-
+ celerated. Default: no rotation.
+
+ Note: The Resize and Rotate extension will be disabled if the Rotate
+ option is used.
+
+ Option "ShadowFB" "boolean"
+ Enable or disable use of the shadow framebuffer layer. Default: off.
+
+
+
+Driver nvidia.ko (binary driver):
+----------------------------------
+(source: ftp://download.nvidia.com/XFree86/Linux-x86/1.0-7174/README.txt)
+
+ Option "NvAGP" "integer"
+ Configure AGP support. Integer argument can be one of:
+ 0 : disable agp
+ 1 : use NVIDIA's internal AGP support, if possible
+ 2 : use AGPGART, if possible
+ 3 : use any agp support (try AGPGART, then NVIDIA's AGP)
+ Please note that NVIDIA's internal AGP support cannot
+ work if AGPGART is either statically compiled into your
+ kernel or is built as a module, but loaded into your
+ kernel (some distributions load AGPGART into the kernel
+ at boot up). Default: 3 (the default was 1 until after
+ 1.0-1251).
+
+ Option "NoLogo" "boolean"
+ Disable drawing of the NVIDIA logo splash screen at
+ X startup. Default: the logo is drawn.
+
+ Option "RenderAccel" "boolean"
+ Enable or disable hardware acceleration of the RENDER
+ extension. THIS OPTION IS EXPERIMENTAL. ENABLE IT AT YOUR
+ OWN RISK. There is no correctness test suite for the
+ RENDER extension so NVIDIA can not verify that RENDER
+ acceleration works correctly. Default: hardware
+ acceleration of the RENDER extension is disabled.
+
+ Option "NoRenderExtension" "boolean"
+ Disable the RENDER extension. Other than recompiling
+ the X-server, XFree86 does not seem to have another way of
+ disabling this. Fortunatly, we can control this from the
+ driver so we export this option. This is useful in depth
+ 8 where RENDER would normally steal most of the default
+ colormap. Default: RENDER is offered when possible.
+
+ Option "UBB" "boolean"
+ Enable or disable Unified Back Buffer on any Quadro
+ based GPUs (Quadro4 NVS excluded); please see
+ Appendix M for a description of UBB. This option has
+ no affect on non-Quadro chipsets. Default: UBB is on
+ for Quadro chipsets.
+
+ Option "NoFlip" "boolean"
+ Disable OpenGL flipping; please see Appendix M for
+ a description. Default: OpenGL will swap by flipping
+ when possible.
+
+ Option "DigitalVibrance" "integer"
+ Enables Digital Vibrance Control. The range of valid
+ values are 0 through 255. This feature is not available
+ on products older than GeForce2. Default: 0.
+
+ Option "Dac8Bit" "boolean"
+ Most Quadro parts by default use a 10 bit color look
+ up table (LUT) by default; setting this option to TRUE forces
+ these graphics chips to use an 8 bit (LUT). Default:
+ a 10 bit LUT is used, when available.
+
+ Option "Overlay" "boolean"
+ Enables RGB workstation overlay visuals. This is only
+ supported on Quadro4 and Quadro FX chips (Quadro4 NVS
+ excluded) in depth 24. This option causes the server to
+ advertise the SERVER_OVERLAY_VISUALS root window property
+ and GLX will report single and double buffered, Z-buffered
+ 16 bit overlay visuals. The transparency key is pixel
+ 0x0000 (hex). There is no gamma correction support in
+ the overlay plane. This feature requires XFree86 version
+ 4.1.0 or newer (or the Xorg X server). NV17/18 based
+ Quadros (ie. 500/550 XGL) have additional restrictions,
+ namely, overlays are not supported in TwinView mode
+ or with virtual desktops larger than 2046x2047 in any
+ dimension (eg. it will not work in 2048x1536 modes).
+ Quadro 7xx/9xx and Quadro FX will offer overlay visuals
+ in these modes (TwinView, or virtual desktops larger
+ than 2046x2047), but the overlay will be emulated with
+ a substantial performance penalty. RGB workstation
+ overlays are not supported when the Composite extension is
+ enabled. Default: off.
+
+ Option "CIOverlay" "boolean"
+ Enables Color Index workstation overlay visuals with
+ identical restrictions to Option "Overlay" above.
+ The server will offer visuals both with and without a
+ transparency key. These are depth 8 PseudoColor visuals.
+ Enabling Color Index overlays on X servers older than
+ XFree86 4.3 will force the RENDER extension to be disabled
+ due to bugs in the RENDER extension in older X servers.
+ Color Index workstation overlays are not supported when the
+ Composite extension is enabled. Default: off.
+
+ Option "TransparentIndex" "integer"
+ When color index overlays are enabled, use this option
+ to choose which pixel is used for the transparent pixel
+ in visuals featuring transparent pixels. This value
+ is clamped between 0 and 255 (Note: some applications
+ such as Alias's Maya require this to be zero
+ in order to work correctly). Default: 0.
+
+ Option "OverlayDefaultVisual" "boolean"
+ When overlays are used, this option sets the default
+ visual to an overlay visual thereby putting the root
+ window in the overlay. This option is not recommended
+ for RGB overlays. Default: off.
+
+ Option "RandRRotation" "boolean"
+ Enable rotation support for the XRandR extension. This
+ allows use of the XRandR X server extension for
+ configuring the screen orientation through rotation.
+ This feature is supported on GeForce2 or better hardware
+ using depth 24. This requires an XOrg 6.8.1 or newer
+ X server. This feature does not work with hardware overlays,
+ emulated overlays will be used instead at a substantial
+ performance penalty. See APPENDIX W for details.
+ Default: off.
+
+ Option "SWCursor" "boolean"
+ Enable or disable software rendering of the X cursor.
+ Default: off.
+
+ Option "HWCursor" "boolean"
+ Enable or disable hardware rendering of the X cursor.
+ Default: on.
+
+ Option "CursorShadow" "boolean" Enable or disable use of a
+ shadow with the hardware accelerated cursor; this is a
+ black translucent replica of your cursor shape at a
+ given offset from the real cursor. This option is
+ only available on GeForce2 or better hardware (ie
+ everything but TNT/TNT2, GeForce 256, GeForce DDR and
+ Quadro). Default: no cursor shadow.
+
+ Option "CursorShadowAlpha" "integer"
+ The alpha value to use for the cursor shadow; only
+ applicable if CursorShadow is enabled. This value must
+ be in the range [0, 255] -- 0 is completely transparent;
+ 255 is completely opaque. Default: 64.
+
+ Option "CursorShadowXOffset" "integer"
+ The offset, in pixels, that the shadow image will be
+ shifted to the right from the real cursor image; only
+ applicable if CursorShadow is enabled. This value must
+ be in the range [0, 32]. Default: 4.
+
+ Option "CursorShadowYOffset" "integer"
+ The offset, in pixels, that the shadow image will be
+ shifted down from the real cursor image; only applicable
+ if CursorShadow is enabled. This value must be in the
+ range [0, 32]. Default: 2.
+
+ Option "ConnectedMonitor" "string"
+ Allows you to override what the NVIDIA kernel module
+ detects is connected to your video card. This may
+ be useful, for example, if you use a KVM (keyboard,
+ video, mouse) switch and you are switched away when
+ X is started. In such a situation, the NVIDIA kernel
+ module cannot detect what display devices are connected,
+ and the NVIDIA X driver assumes you have a single CRT.
+
+ Valid values for this option are "CRT" (cathode ray
+ tube), "DFP" (digital flat panel), or "TV" (television);
+ if using TwinView, this option may be a comma-separated
+ list of display devices; e.g.: "CRT, CRT" or "CRT, DFP".
+
+ NOTE: anything attached to a 15 pin VGA connector is
+ regarded by the driver as a CRT. "DFP" should only be
+ used to refer to flatpanels connected via a DVI port.
+
+ Default: string is NULL.
+
+ Option "UseEdidFreqs" "boolean"
+ This option causes the X server to use the HorizSync
+ and VertRefresh ranges given in a display device's EDID,
+ if any. EDID provided range information will override
+ the HorizSync and VertRefresh ranges specified in the
+ Monitor section. If a display device does not provide an
+ EDID, or the EDID does not specify an hsync or vrefresh
+ range, then the X server will default to the HorizSync
+ and VertRefresh ranges specified in the Monitor section.
+
+ Option "IgnoreEDID" "boolean"
+ Disable probing of EDID (Extended Display Identification
+ Data) from your monitor. Requested modes are compared
+ against values gotten from your monitor EDIDs (if any)
+ during mode validation. Some monitors are known to lie
+ about their own capabilities. Ignoring the values that
+ the monitor gives may help get a certain mode validated.
+ On the other hand, this may be dangerous if you do not
+ know what you are doing. Default: Use EDIDs.
+
+ Option "NoDDC" "boolean"
+ Synonym for "IgnoreEDID"
+
+ Option "FlatPanelProperties" "string"
+ Requests particular properties of any connected flat
+ panels as a comma-separated list of property=value pairs.
+ Currently, the only two available properties are 'Scaling'
+ and 'Dithering'. The possible values for 'Scaling' are:
+ 'default' (the driver will use whatever scaling state
+ is current), 'native' (the driver will use the flat
+ panel's scaler, if it has one), 'scaled' (the driver
+ will use the NVIDIA scaler, if possible), 'centered'
+ (the driver will center the image, if possible),
+ and 'aspect-scaled' (the driver will scale with the
+ NVIDIA scaler, but keep the aspect ratio correct).
+ The possible values for 'Dithering' are: 'default'
+ (the driver will decide when to dither), 'enabled' (the
+ driver will always dither when possible), and 'disabled'
+ (the driver will never dither). If any property is not
+ specified, it's value shall be 'default'. An example
+ properties string might look like:
+
+ "Scaling = centered, Dithering = enabled"
+
+ Option "UseInt10Module" "boolean"
+ Enable use of the X Int10 module to soft-boot all
+ secondary cards, rather than POSTing the cards through
+ the NVIDIA kernel module. Default: off (POSTing is done
+ through the NVIDIA kernel module).
+
+ Option "TwinView" "boolean"
+ Enable or disable TwinView. Please see APPENDIX I for
+ details. Default: TwinView is disabled.
+
+ Option "TwinViewOrientation" "string"
+ Controls the relationship between the two display devices
+ when using TwinView. Takes one of the following values:
+ "RightOf" "LeftOf" "Above" "Below" "Clone". Please see
+ APPENDIX I for details. Default: string is NULL.
+
+ Option "SecondMonitorHorizSync" "range(s)"
+ This option is like the HorizSync entry in the Monitor
+ section, but is for the second monitor when using
+ TwinView. Please see APPENDIX I for details. Default:
+ none.
+
+ Option "SecondMonitorVertRefresh" "range(s)"
+ This option is like the VertRefresh entry in the Monitor
+ section, but is for the second monitor when using
+ TwinView. Please see APPENDIX I for details. Default:
+ none.
+
+ Option "MetaModes" "string"
+ This option describes the combination of modes to use
+ on each monitor when using TwinView. Please see APPENDIX
+ I for details. Default: string is NULL.
+
+ Option "NoTwinViewXineramaInfo" "boolean"
+ When in TwinView, the NVIDIA X driver normally provides
+ a Xinerama extension that X clients (such as window
+ managers) can use to to discover the current TwinView
+ configuration. Some window mangers can get confused by
+ this information, so this option is provided to disable
+ this behavior. Default: TwinView Xinerama information
+ is provided.
+
+ Option "TVStandard" "string"
+ Please see (app-j) APPENDIX J: CONFIGURING TV-OUT.
+
+ Option "TVOutFormat" "string"
+ Please see (app-j) APPENDIX J: CONFIGURING TV-OUT.
+
+ Option "TVOverScan" "Decimal value in the range 0.0 to 1.0"
+ Valid values are in the range 0.0 through 1.0; please see
+ (app-j) APPENDIX J: CONFIGURING TV-OUT.
+
+ Option "Stereo" "integer"
+ Enable offering of quad-buffered stereo visuals on Quadro.
+ Integer indicates the type of stereo glasses being used:
+
+ 1 - DDC glasses. The sync signal is sent to the glasses
+ via the DDC signal to the monitor. These usually
+ involve a passthrough cable between the monitor and
+ video card.
+
+ 2 - "Blueline" glasses. These usually involve
+ a passthrough cable between the monitor and video
+ card. The glasses know which eye to display based
+ on the length of a blue line visible at the bottom
+ of the screen. When in this mode, the root window
+ dimensions are one pixel shorter in the Y dimension
+ than requested. This mode does not work with virtual
+ root window sizes larger than the visible root window
+ size (desktop panning).
+
+ 3 - Onboard stereo support. This is usually only found
+ on professional cards. The glasses connect via a
+ DIN connector on the back of the video card.
+
+ 4 - TwinView clone mode stereo (aka "passive" stereo).
+ On video cards that support TwinView, the left eye
+ is displayed on the first display, and the right
+ eye is displayed on the second display. This is
+ normally used in conjuction with special projectors
+ to produce 2 polarized images which are then viewed
+ with polarized glasses. To use this stereo mode,
+ you must also configure TwinView in clone mode with
+ the same resolution, panning offset, and panning
+ domains on each display.
+
+ Stereo is only available on Quadro cards. Stereo
+ options 1, 2, and 3 (aka "active" stereo) may be used
+ with TwinView if all modes within each metamode have
+ identical timing values. Please see (app-l) APPENDIX
+ L: PROGRAMMING MODES for suggestions on making sure the
+ modes within your metamodes are identical. The identical
+ modeline requirement is not necessary for Stereo option 4
+ ("passive" stereo). Currently, stereo operation may
+ be "quirky" on the original Quadro (NV10) chip and
+ left-right flipping may be erratic. We are trying
+ to resolve this issue for a future release. Default:
+ Stereo is not enabled.
+
+ Stereo options 1, 2, and 3 (aka "active" stereo) are not
+ supported on Digital Flatpanels.
+
+ Option "AllowDFPStereo" "boolean"
+ By default, the NVIDIA X driver performs a check which
+ disables active stereo (stereo options 1, 2, and 3)
+ if the X screen is driving a DFP. The "AllowDFPStereo"
+ option bypasses this check.
+
+ Option "NoBandWidthTest" "boolean"
+ As part of mode validation, the X driver tests if a
+ given mode fits within the hardware's memory bandwidth
+ constraints. This option disables this test. Default:
+ the memory bandwidth test is performed.
+
+ Option "IgnoreDisplayDevices" "string"
+ This option tells the NVIDIA kernel module to completely
+ ignore the indicated classes of display devices when
+ checking what display devices are connected. You may
+ specify a comma-separated list containing any of "CRT",
+ "DFP", and "TV".
+
+ For example:
+
+ Option "IgnoreDisplayDevices" "DFP, TV"
+
+ will cause the NVIDIA driver to not attempt to detect
+ if any flatpanels or TVs are connected.
+
+ This option is not normally necessary; however, some video
+ BIOSes contain incorrect information about what display
+ devices may be connected, or what i2c port should be
+ used for detection. These errors can cause long delays
+ in starting X. If you are experiencing such delays, you
+ may be able to avoid this by telling the NVIDIA driver to
+ ignore display devices which you know are not connected.
+
+ NOTE: anything attached to a 15 pin VGA connector is
+ regarded by the driver as a CRT. "DFP" should only be
+ used to refer to flatpanels connected via a DVI port.
+
+ Option "MultisampleCompatibility" "boolean"
+ Enable or disable the use of separate front and back
+ multisample buffers. This will consume more memory
+ but is necessary for correct output when rendering to
+ both the front and back buffers of a multisample or
+ FSAA drawable. This option is necessary for correct
+ operation of SoftImage XSI. Default: a singlemultisample
+ buffer is shared between the front and back buffers.
+
+ Option "NoPowerConnectorCheck" "boolean"
+ The NVIDIA X driver will abort X server initialization
+ if it detects that a GPU that requires an external power
+ connector does not have an external power connector
+ plugged in. This option can be used to bypass this test.
+ Default: the power connector test is performed.
+
+ Option "XvmcUsesTextures" "boolean"
+ Forces XvMC to use the 3D engine for XvMCPutSurface
+ requests rather than the video overlay. Default: video
+ overlay is used when available.
+
+ Option "AllowGLXWithComposite" "boolean"
+ Enables GLX even when the Composite X extension is loaded.
+ ENABLE AT YOUR OWN RISK. OpenGL applications will not
+ display correctly in many circumstances with this setting
+ enabled. Default: GLX is disabled when Composite is
+ loaded.
+
+ Option "ExactModeTimingsDVI" "boolean"
+ Forces the initialization of the X server with the exact
+ timings specified in the ModeLine. Default: For DVI
+ devices, the X server inilializes with the closest mode in
+ the EDID list.
+
+
+Driver radeon:
+---------------
+(source: manpage radeon)
+
+ Option "SWcursor" "boolean"
+ Selects software cursor. The default is off.
+
+ Option "NoAccel" "boolean"
+ Enables or disables all hardware acceleration.
+ The default is to enable hardware acceleration.
+
+ Option "Dac6Bit" "boolean"
+ Enables or disables the use of 6 bits per color component when in 8
+ bpp mode (emulates VGA mode). By default, all 8 bits per color com-
+ ponent are used.
+ The default is off.
+
+ Option "VideoKey" "integer"
+ This overrides the default pixel value for the YUV video overlay key.
+ The default value is 0x1E.
+
+ Option "UseFBDev" "boolean"
+ Enable or disable use of an OS-specific framebuffer device interface
+ (which is not supported on all OSs). MergedFB does not work when
+ this option is in use. See fbdevhw(4x) for further information.
+ The default is off.
+
+ Option "AGPMode" "integer"
+ Set AGP data transfer rate. (used only when DRI is enabled)
+ 1 -- x1 (default)
+ 2 -- x2
+ 4 -- x4
+ others -- invalid
+
+ Option "AGPFastWrite" "boolean"
+ Enable AGP fast write.
+ (used only when DRI is enabled)
+ The default is off.
+
+ Option "BusType" "string"
+ Used to replace previous ForcePCIMode option. Should only be used
+ when driver’s bus detection is incorrect or you want to force a AGP
+ card to PCI mode. Should NEVER force a PCI card to AGP bus.
+ PCI -- PCI bus
+ AGP -- AGP bus
+ PCIE -- PCI Express (falls back to PCI at present)
+ (used only when DRI is enabled)
+ The default is auto detect.
+
+ Option "DDCMode" "boolean"
+ Force to use the modes queried from the connected monitor.
+ The default is off.
+
+ Option "DisplayPriority" "string"
+ Used to prevent flickering or tearing problem caused by display
+ buffer underflow.
+ AUTO -- Driver calculated (default).
+ BIOS -- Remain unchanged from BIOS setting.
+ Use this if the calculation is not correct
+ for your card.
+ HIGH -- Force to the highest priority.
+ Use this if you have problem with above options.
+ This may affect performence slightly.
+ The default value is AUTO.
+
+ Option "MonitorLayout" "string"
+ This option is used to overwrite the detected monitor types. This is
+ only required when driver makes a false detection. The possible mon-
+ itor types are:
+ NONE -- Not connected
+ CRT -- Analog CRT monitor
+ TMDS -- Desktop flat panel
+ LVDS -- Laptop flat panel
+ This option can be used in following format:
+ Option "MonitorLayout" "[type on primary], [type on secondary]"
+ For example, Option "MonitorLayout" "CRT, TMDS"
+
+ Primary/Secondary head for dual-head cards:
+ (when only one port is used, it will be treated as the primary
+ regardless)
+ Primary head:
+ DVI port on DVI+VGA cards
+ LCD output on laptops
+ Internal TMDS port on DVI+DVI cards
+ Secondary head:
+ VGA port on DVI+VGA cards
+ VGA port on laptops
+ External TMDS port on DVI+DVI cards
+
+ The default value is undefined.
+
+ Option "MergedFB" "boolean"
+ This enables merged framebuffer mode. In this mode you have a single
+ shared framebuffer with two viewports looking into it. It is similar
+ to Xinerama, but has some advantages. It is faster than Xinerama,
+ the DRI works on both heads, and it supports clone modes.
+ Merged framebuffer mode provides two linked viewports looking into a
+ single large shared framebuffer. The size of the framebuffer is
+ determined by the Virtual keyword defined on the Screen section of
+ your XF86Config file. It works just like regular virtual desktop
+ except you have two viewports looking into it instead of one.
+ For example, if you wanted a desktop composed of two 1024x768 view-
+ ports looking into a single desktop you would create a virtual desk-
+ top of 2048x768 (left/right) or 1024x1536 (above/below), e.g.,
+ Virtual 2048 768 or Virtual 1024 1536
+ The virtual desktop can be larger than larger than the size of the
+ viewports looking into it. In this case the linked viewports will
+ scroll around in the virtual desktop. Viewports with different sizes
+ are also supported (e.g., one that is 1024x768 and one that is
+ 640x480). In this case the smaller viewport will scroll relative to
+ the larger one such that none of the virtual desktop is inaccessable.
+ If you do not define a virtual desktop the driver will create one
+ based on the orientation of the heads and size of the largest defined
+ mode in the display section that is supported on each head.
+ The relation of the viewports in specified by the CRT2Position
+ Option. The options are Clone , LeftOf , RightOf , Above , and
+ Below. MergedFB is enabled by default if a monitor is detected on
+ each output. If no position is given it defaults to clone mode (the
+ old clone options are now deprecated, also, the option OverlayOnCRTC2
+ has been replaced by the Xv attribute XV_SWITCHCRT; the overlay can
+ be switched to CRT1 or CRT2 on the fly in clone mode).
+ The maximum framebuffer size that the 2D acceleration engine can han-
+ dle is 8192x8192. The maximum framebuffer size that the 3D engine
+ can handle is 2048x2048.
+ Note: Page flipping does not work well in certain configurations with
+ MergedFB. If you see rendering errors or other strange behavior,
+ disable page flipping. Also MergedFB is not compatible with the UseF-
+ BDev option.
+ The default value is undefined.
+
+ Option "CRT2HSync" "string"
+ Set the horizontal sync range for the secondary monitor. It is not
+ required if a DDC-capable monitor is connected.
+ For example, Option "CRT2HSync" "30.0-86.0"
+ The default value is undefined.
+
+ Option "CRT2VRefresh" "string"
+ Set the vertical refresh range for the secondary monitor. It is not
+ required if a DDC-capable monitor is connected.
+ For example, Option "CRT2VRefresh" "50.0-120.0"
+ The default value is undefined.
+
+ Option "CRT2Position" "string"
+ Set the relationship of CRT2 relative to CRT1. Valid options are:
+ Clone , LeftOf , RightOf , Above , and Below
+ For example, Option "CRT2Position" "RightOf"
+ The default value is Clone.
+
+ Option "MetaModes" "string"
+ MetaModes are mode combinations for CRT1 and CRT2. If you are using
+ merged frame buffer mode and want to change modes (CTRL-ALT-+/-),
+ these define which modes will be switched to on CRT1 and CRT2. The
+ MetaModes are defined as CRT1Mode-CRT2Mode (800x600-1024x768). Modes
+ listed individually (800x600) define clone modes, that way you can
+ mix clone modes with non-clone modes. Also some programs require
+ "standard" modes.
+ Note: Any mode you use in the MetaModes must be defined in the
+ Screen section of your XF86Config file. Modes not defined there will
+ be ignored when the MetaModes are parsed since the driver uses them
+ to make sure the monitors can handle those modes. If you do not
+ define a MetaMode the driver will create one based on the orientation
+ of the heads and size of the largest defined mode in the display sec-
+ tion that is supported on each head.
+ Modes 1024x768 800x600 640x480
+ For example, Option "MetaModes" "1024x768-1024x768 800x600-1024x768
+ 640x480-800x600 800x600"
+ The default value is undefined.
+
+ Option "OverlayOnCRTC2" "boolean"
+ Force hardware overlay to clone head.
+ The default value is off.
+
+ Option "NoMergedXinerama" "boolean"
+ Since merged framebuffer mode does not use Xinerama, apps are not
+ able to intelligently place windows. Merged framebuffer mode pro-
+ vides its own pseudo-Xinerama. This allows Xinerama compliant appli-
+ cations to place windows appropriately. There are some caveats.
+ Since merged framebuffer mode is able to change relative screen sizes
+ and orientations on the fly, as well has having overlapping view-
+ ports, pseudo-Xinerama, might not always provide the right hints.
+ Also many Xinerama compliant applications only query Xinerama once at
+ startup; if the information changes, they may not be aware of the
+ change. If you are already using Xinerama (e.g., a single head card
+ and a dualhead card providing three heads), pseudo-Xinerama will be
+ disabled.
+ This option allows you turn off the driver provided pseudo-Xinerama
+ extension.
+ The default value is FALSE.
+
+ Option "MergedXineramaCRT2IsScreen0" "boolean"
+ By default the pseudo-Xinerama provided by the driver makes the left-
+ most or bottom head Xinerama screen 0. Certain Xinerama-aware appli-
+ cations do special things with screen 0. To change that behavior,
+ use this option.
+ The default value is undefined.
+
+ Option "MergedDPI" "string"
+ The driver will attempt to figure out an appropriate DPI based on the
+ DDC information and the orientation of the heads when in merged
+ framebuffer mode. If this value does not suit you, you can manually
+ set the DPI using this option.
+ For example, Option "MergedDPI" "100 100"
+ The default value is undefined.
+
+ Option "IgnoreEDID" "boolean"
+ Do not use EDID data for mode validation, but DDC is still used for
+ monitor detection. This is different from NoDDC option.
+ The default value is off.
+
+ Option "PanelSize" "string"
+ Should only be used when driver cannot detect the correct panel size.
+ Apply to both desktop (TMDS) and laptop (LVDS) digital panels. When
+ a valid panel size is specified, the timings collected from DDC and
+ BIOS will not be used. If you have a panel with timings different
+ from that of a standard VESA mode, you have to provide this informa-
+ tion through the Modeline.
+ For example, Option "PanelSize" "1400x1050"
+ The default value is none.
+
+ Option "PanelOff" "boolean"
+ Disable panel output.
+ The default value is off.
+
+ Option "EnablePageFlip" "boolean"
+ Enable page flipping for 3D acceleration. This will increase perfor-
+ mance but not work correctly in some rare cases, hence the default is
+ off.
+ Note: Page flipping does not work well in certain configurations with
+ MergedFB. If you see rendering errors or other strange behavior,
+ disable page flipping.
+
+ Option "ForceMinDotClock" "frequency"
+ Override minimum dot clock. Some Radeon BIOSes report a minimum dot
+ clock unsuitable (too high) for use with television sets even when
+ they actually can produce lower dot clocks. If this is the case you
+ can override the value here. Note that using this option may damage
+ your hardware. You have been warned. The frequency parameter may be
+ specified as a float value with standard suffixes like "k", "kHz",
+ "M", "MHz".
+
+ Option "RenderAccel" "boolean"
+ Enables or disables hardware Render acceleration. This driver does
+ not support component alpha (subpixel) rendering. It is only sup-
+ ported on Radeon series up to and including 9200 (9500/9700 and newer
+ unsupported). The default is to enable Render acceleration.
+
+ Option "SubPixelOrder" "string"
+ Force subpixel order to specified order. Subpixel order is used for
+ subpixel decimation on flat panels.
+ NONE -- No subpixel (CRT like displays)
+ RGB -- in horizontal RGB order (most flat panels)
+ BGR -- in horizontal BGR order (some flat panels)
+
+ This option is intended to be used in following cases:
+ 1. The default subpixel order is incorrect for your panel.
+ 2. Enable subpixel decimation on analog panels.
+ 3. Adjust to one display type in dual-head clone mode setup.
+ 4. Get better performance with Render acceleration on digital panels
+ (use NONE setting).
+ The default is NONE for CRT, RGB for digital panels
+
+ Option "DynamicClocks" "boolean"
+ Enable dynamic clock scaling. The on-chip clocks will scale dynami-
+ cally based on usage. This can help reduce heat and increase battery
+ life by reducing power usage. Some users report reduced 3D prefor-
+ mance with this enabled. The default is off.
+
+
+
+Driver sis:
+------------
+
+ Option "NoAccel" "boolean"
+ Disable or enable 2D acceleration. Default: acceleration is enabled.
+
+ Option "HWCursor" "boolean"
+ Enable or disable the HW cursor. Default: HWCursor is on.
+
+ Option "SWCursor" "boolean"
+ The opposite of HWCursor. Default: SWCursor is off.
+
+ Option "Rotate" "CW"
+ Rotate the display clockwise. This mode is unaccelerated, and uses
+ the Shadow Frame Buffer layer. Using this option disables the Resize
+ and Rotate extension (RandR). Default: no rotation.
+
+ Option "Rotate" "CCW"
+ Rotate the display counterclockwise. This mode is unaccelerated, and
+ uses the Shadow Frame Buffer layer. Using this option disables the
+ Resize and Rotate extension (RandR). Default: no rotation.
+
+ Option "ShadowFB" "boolean"
+ Enable or disable use of the shadow framebuffer layer. Default:
+ Shadow framebuffer is off.
+
+ Option "CRT1Gamma" "boolean"
+ Enable or disable gamma correction. Default: Gamma correction is on.
+
+
+
+Driver vesa:
+-------------
+(source: man vesa)
+
+ Option "ShadowFB" "boolean"
+ Enable or disable use of the shadow framebuffer layer. Default: on.
+ This option is recommended for performance reasons.
+