lefteris@ApaChe:~$ sh sh-3.1$ su Password: su: Authentication failure Entschuldigung. sh-3.1$ nvidia-xconfig --sli=on Using X configuration file: "/etc/X11/xorg.conf". ERROR: Unable to write to directory '/etc/X11'. sh-3.1$ nvidia-xconfig -A nvidia-xconfig: version 1.0 (buildmeister@builder3) Mon May 15 13:23:42 PDT 2006 The NVIDIA X Configuration Tool. This program is used to manipulate X configuration files, specifically to enable NVIDIA X driver functionality. Copyright (C) 2005 NVIDIA Corporation. In its normal operation, nvidia-xconfig finds the system X configuration file (or generates a new X configuration if it cannot find the system file), makes sure the configuration is usable by the NVIDIA X driver, applies any updates requested on the commandline, and writes the new configuration to file. Please see the NVIDIA README for a description of NVIDIA X configuration file options. nvidia-xconfig [options] -c, --xconfig=XCONFIG Use XCONFIG as the input X config file; if this option is not specified, then the same search path used by the X server will be used to find the X configuration file. -o, --output-xconfig=OUTPUT-XCONFIG Use OUTPUT-XCONFIG as the output X configuration file; if this option is not specified, then the input X configuration filename will also be used as the output filename. -s, --silent Run silently; no messages will be printed to stdout, except for warning and error messages to stderr. -t, --tree Read the X configuration file, print to stdout the X configuration data in a tree format, and exit. -v, --version Print the nvidia-xconfig version and exit. -h, --help Print usage information for the common commandline options and exit. -A, --advanced-help Print usage information for the common commandline options as well as the advanced options, and then exit. --add-argb-glx-visuals/--no-add-argb-glx-visuals Enables or disables support for OpenGL rendering into 32-bit ARGB windows and pixmaps. --allow-ddcci/--no-allow-ddcci Enables or disables DDC/CI support in the NV-CONTROL X extension. --allow-dfp-stereo/--no-allow-dfp-stereo Enable or disable the "AllowDFPStereo" X configuration option. --allow-glx-with-composite/--no-allow-glx-with-composite Enable or disable the "AllowGLXWithComposite" X configuration option. --bandwidth-test/--no-bandwidth-test Disable or enable the "NoBandWidthTest" X configuration option. --composite/--no-composite Enable or disable the "Composite" X extension. --dac-8bit/--no-dac-8bit 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). --ddc/--no-ddc Synonym for "ignore-edid" -d, --depth=DEPTH Set the default depth to DEPTH; valid values for DEPTH are 8, 15, 16 and 24. --digital-vibrance=DIGITAL-VIBRANCE/--no-digital-vibrance Enables digital vibrance control. Valid values for DIGITAL-VIBRANCE are 0-255. -a, --enable-all-gpus Configure an X screen on every GPU in the system. --exact-mode-timings-dvi/--no-exact-mode-timings-dvi Forces the initialization of the X server with the exact timings specified in the ModeLine. --flip/--no-flip Enable or disable OpenGL flipping --force-generate Force generation of a new X config file, ignoring any existing system X config file. This is not typically recommended, as things like the mouse protocol, keyboard layout, font paths, etc, are setup by your Unix distribution. While nvidia-xconfig can attempt to infer these values, it is best to use your Unix distribution's X config file for the basis of anything that nvidia-xconfig creates. --force-stereo-flipping/--no-force-stereo-flipping Normally, stereo flipping is only performed when a stereo drawable is visible. This option forces stereo flipping even when no stereo drawables are visible. --ignore-edid/--no-ignore-edid Disable or enable probing of EDID (Extended Display Identification Data) from your monitor. --use-edid-freqs/--no-use-edid-freqs Allow or disallow 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. --keyboard=KEYBOARD When generating a new X configuration file (which happens when no system X configuration file can be found, or the '--force-generate' option is specified), use KEYBOARD as the keyboard type, rather than attempting to probe the system for the keyboard type. For a list of possible keyboard types, see the '--keyboard-list' option. --keyboard-driver=KEYBOARD-DRIVER In most cases nvidia-xconfig can automatically determine the correct keyboard driver to use (either 'kbd' or 'keyboard'). Use this option to override what nvidia-xconfig detects. Typically, if you are using an X.org X server, use 'kdb'; if you are using an XFree86 X server, use 'keyboard'. --keyboard-list Print to stdout the available keyboard types recognized by the '--keyboard' option, and then exit. --layout=LAYOUT The nvidia-xconfig utility operates on a Server Layout within the X configuration file. If this option is specified, the layout named LAYOUT in the X configuration file will be used. If this option is not specified, the first Server Layout in the X configuration file is used. --screen=SCREEN The nvidia-xconfig utility operates on one or more screens within a Server Layout in the X configuration file. If this option is specified, the screen named SCREEN in the X configuration file will be used. If this option is not specified, all screens within the selected Server Layout in the X configuration file will be used used. --load-kernel-module/--no-load-kernel-module Allow or disallow NVIDIA Linux X driver module to load the NVIDIA Linux kernel module automatically. --logo/--no-logo Disable or enable the "NoLogo" X configuration option. --mode=MODE/--no-mode Adds or removes the specified mode from the mode list. --mouse=MOUSE When generating a new X configuration file (which happens when no system X configuration file can be found, or the '--force-generate' option is specified), use MOUSE as the mouse type, rather than attempting to probe the system for the mouse type. For a list of possible mouse types, see the '--mouse-list' option. --mouse-list Print to stdout the available mouse types recognized by the '--mouse' option, and then exit. --multisample-compatibility/--no-multisample-compatibility Enable or disable the use of separate front and back multisample buffers. --nvagp=NVAGP Set the NvAGP X config option value. Possible values are 0 (no AGP), 1 (NVIDIA's AGP), 2 (AGPGART), 3 (try AGPGART, then try NVIDIA's AGP); these values can also be specified as 'none', 'nvagp', 'agpgart', or 'any'. --nvidia-cfg-path=NVIDIA-CFG-PATH The nvidia-cfg library is used to communicate with the NVIDIA kernel module to query basic properties of every GPU in the system. This library is typically only used by nvidia-xconfig when configuring multiple X screens. This option tells nvidia-xconfig where to look for this library (in case it cannot find it on its own). This option should normally not be needed. --only-one-x-screen Disable all but one X screen. --overlay/--no-overlay Enable or disable the "Overlay" X configuration option. --cioverlay/--no-cioverlay Enable or disable the color index overlay. --transparent-index=TRANSPARENT-INDEX/--no-transparent-index Pixel to use as transparent when using color index overlays. Valid values for TRANSPARENT-INDEX are 0-255. --overlay-default-visual/--no-overlay-default-visual Enable or disable the "OverlayDefaultVisual" X configuration option. -T, --post-tree Like the '--tree' option, but goes through the full process of applying any user requested updates to the X configuration, before printing the final configuration to stdout in a tree format. Effectively, this option just causes the configuration to be printed to stdout as a tree instead of writing the results to file. --power-connector-check/--no-power-connector-check Disable or enable the "NoPowerConnectorCheck" X configuration option. --query-gpu-info Print information about all recognized NVIDIA GPUs in the system. --randr-rotation/--no-randr-rotation Enable or disable the "RandRRotation" X configuration option. --rotate=ROTATE Enable or disable the "Rotate" X configuration option. Valid values for ROTATE are 'normal', 'left', 'inverted', and 'right'. --render-accel/--no-render-accel Enable or disable the "RenderAccel" X configuration option. --render-extension/--no-render-extension Disable or enable the "NoRenderExtension" X configuration option. --separate-x-screens/--no-separate-x-screens A GPU that supports multiple simultaneous display devices can either drive these display devices in TwinView, or as separate X screens. When the '--separate-x-screens' option is specified, each GPU on which an X screen is currently configured will be updated to have two X screens configured. The '--no-separate-x-screens' option will remove the second configured X screen on each GPU. Please see the NVIDIA README description of "Separate X Screens on One GPU" for further details. --sli=SLI Enable or disable SLI. Valid values for SLI are 'Off', 'Auto', 'AFR', 'SFR', and 'SLIAA'. --stereo=STEREO/--no-stereo Enable/Disable the stereo mode. Valid values for STEREO are: 1 (DCC glasses), 2 (Blueline glasses), 3 (Onboard stereo), 4 (TwinView clone mode stereo), 5 (SeeReal digital flat panel), 6 (Sharp3D digital flat panel). --twinview/--no-twinview Enable or disable TwinView. --twinview-xinerama-info/--no-twinview-xinerama-info Prohibits providing Xinerama information when in TwinView. --ubb/--no-ubb Enable or disable the "UBB" X configuration option. --use-int10-module/--no-use-int10-module Enable use of the X Int10 module to soft-boot all secondary cards, rather than POSTing the cards through the NVIDIA kernel module. --x-prefix=X-PREFIX The X installation prefix; the default is /usr/X11R6/. Only under rare circumstances should this option be needed. --xinerama/--no-xinerama Enable or disable Xinerama. --xvmc-uses-textures/--no-xvmc-uses-textures Forces XvMC to use the 3D engine for XvMCPutSurface requests rather than the video overlay. sh-3.1$ nvidia-xconfig --sli=ON Using X configuration file: "/etc/X11/xorg.conf". ERROR: Unable to write to directory '/etc/X11'. sh-3.1$ su Password: su: Authentication failure Entschuldigung. sh-3.1$