/etc/X11/xorg.conf - 3 way multiseat with NVidia cards

# xorg.conf (X.Org X Window System server configuration file)
#
# This file was generated by dexconf, the Debian X Configuration tool, using
# values from the debconf database.
#
# Edit this file with caution, and see the xorg.conf manual page.
# (Type "man xorg.conf" at the shell prompt.)
#
# This file is automatically updated on xserver-xorg package upgrades *only*
# if it has not been modified since the last upgrade of the xserver-xorg
# package.
#
# If you have edited this file but would like it to be automatically updated
# again, run the following command:
#   sudo dpkg-reconfigure -phigh xserver-xorg

Section "ServerFlags"
    Option         "DefaultServerLayout" "seat0"
    Option         "AllowMouseOpenFail"  "true"
    Option         "AutoAddDevices"      "false"
    Option         "AutoEnableDevices"   "false"
    Option         "DontZap"             "false"
EndSection

Section "ServerLayout"
    Identifier     "seat0"
    Screen      0  "Screen0" 0 0
    InputDevice    "Mouse0" "CorePointer"
    InputDevice    "Keyboard0" "CoreKeyboard"
EndSection

Section "ServerLayout"
    Identifier     "seat1"
    Screen      0  "Screen1" 0 0
    InputDevice    "Mouse1" "CorePointer"
    InputDevice    "Keyboard1" "CoreKeyboard"
EndSection

Section "ServerLayout"
    Identifier     "seat2"
    Screen      0  "Screen2" 0 0
    InputDevice    "Mouse2" "CorePointer"
    InputDevice    "Keyboard2" "CoreKeyboard"
EndSection

Section "Module"
    Load           "glx"
EndSection

Section "InputDevice"
    Identifier     "Keyboard0"
    Driver         "evdev"
    Option         "Device" "/dev/input/by-path/platform-i8042-serio-0-event-kbd"
    Option         "XkbRules" "xorg"
    Option         "XkbModel" "evdev"
    Option         "XkbLayout" "us"
    Option         "GrabDevice" "yes"
EndSection

Section "InputDevice"
    Identifier     "Mouse0"
    Driver         "mouse"
    Option         "Protocol" "ExplorerPS/2"
    Option         "Device" "/dev/input/mouse0"
EndSection

Section "InputDevice"
    Identifier     "Keyboard1"
    Driver         "evdev"
    Option         "Device" "/dev/input/by-path/pci-0000:00:12.2-usb-0:5.1:1.0-event-kbd"
    Option         "XkbRules" "xorg"
    Option         "XkbModel" "evdev"
    Option         "XkbLayout" "us"
    Option         "GrabDevice" "yes"
EndSection

Section "InputDevice"
    Identifier     "Mouse1"
    Driver         "mouse"
    Option         "Protocol" "ExplorerPS/2"
    Option         "Device" "/dev/input/mouse1"
EndSection

Section "InputDevice"
    Identifier     "Keyboard2"
    Driver         "evdev"
    Option         "Device" "/dev/input/by-path/pci-0000:00:12.2-usb-0:5.2:1.0-event-kbd"
    Option         "XkbRules" "xorg"
    Option         "XkbModel" "evdev"
    Option         "XkbLayout" "us"
    Option         "GrabDevice" "yes"
EndSection

Section "InputDevice"
    Identifier     "Mouse2"
    Driver         "mouse"
    Option         "Protocol" "ExplorerPS/2"
    Option         "Device" "/dev/input/mouse2"
EndSection

Section "Modes"
    Identifier  "Modes0"
    ModeLine    "1920x1080" 148.0 1920 2008 2052 2200 1080 1084 1089 1125
EndSection

Section "Monitor"
    Identifier  "Monitor0"
    VendorName  "DEL"
    ModelName   "DELL ST2310"
    UseModes    "Modes0"
    DisplaySize 510 287
    HorizSync   30.0 - 83.0
    VertRefresh 43.0 - 76.0
    Option      "CalcAlgorithm" "XServerPool"
    Option      "DPMS"
    Option      "PreferredMode" "1920x1080"
EndSection

Section "Modes"
    Identifier  "Modes1"
    ModeLine    "1920x1080" 148.0 1920 2008 2052 2200 1080 1084 1089 1125
EndSection

Section "Monitor"
    Identifier  "Monitor1"
    VendorName  "DEL"
    ModelName   "DELL ST2310"
    UseModes    "Modes1"
    DisplaySize 510 287
    HorizSync   30.0 - 83.0
    VertRefresh 43.0 - 76.0
    Option      "CalcAlgorithm" "XServerPool"
    Option      "DPMS"
    Option      "PreferredMode" "1920x1080"
EndSection

Section "Modes"
    Identifier  "Modes2"
    ModeLine    "1920x1080" 148.0 1920 2008 2052 2200 1080 1084 1089 1125
EndSection

Section "Monitor"
    Identifier  "Monitor2"
    VendorName  "DEL"
    ModelName   "DELL ST2310"
    UseModes    "Modes2"
    DisplaySize 510 287
    HorizSync   30.0 - 83.0
    VertRefresh 43.0 - 76.0
    Option      "CalcAlgorithm" "XServerPool"
    Option      "DPMS"
    Option      "PreferredMode" "1920x1080"
EndSection

Section "Device"
    Identifier     "Videocard0"
    Driver         "nvidia"
    VendorName     "NVIDIA Corporation"
    BoardName      "GeForce GTS 450"
    BusID          "PCI:1:0:0"
EndSection

Section "Device"
    Identifier     "Videocard1"
    Driver         "nvidia"
    VendorName     "NVIDIA Corporation"
    BoardName      "GeForce 7300 SE/7200 GS"
    BusID          "PCI:6:0:0"
    Option         "ProbeAllGpus"          "false"
EndSection

Section "Device"
    Identifier     "Videocard2"
    Driver         "nvidia"
    VendorName     "NVIDIA Corporation"
    BoardName      "GeForce 7300 SE/7200 GS"
    BusID          "PCI:7:0:0"
    Option         "ProbeAllGpus"          "false"
EndSection

Section "Screen"
    Identifier     "Screen0"
    Device         "Videocard0"
    Monitor        "Monitor0"
    DefaultDepth   24
    Option         "NoLogo" "True"
    Option         "UseDisplayDevice" "DFP"
    Option         "AddARGBVisuals" "True"
    Option         "AddARGBGLXVisuals" "True"
    Option         "DynamicTwinView" "False"
    Option         "metamodes" "1920x1080_60 +0+0"
    SubSection "Display"
        Depth 15
        Modes "1920x1080" "1680x1050" "1600x1024" "1600x1000" "1400x1050" "1600x900" "1280x1024" "1440x900" "1280x960" "1366x768" "1360x768" "1280x800" "1152x864" "1280x768" "1280x720" "1024x768" "1280x600" "1024x600" "800x600" "768x576" "640x480"
    EndSubSection
    SubSection "Display"
        Depth 16
        Modes "1920x1080" "1680x1050" "1600x1024" "1600x1000" "1400x1050" "1600x900" "1280x1024" "1440x900" "1280x960" "1366x768" "1360x768" "1280x800" "1152x864" "1280x768" "1280x720" "1024x768" "1280x600" "1024x600" "800x600" "768x576" "640x480"
    EndSubSection
    SubSection "Display"
        Depth 24
        Modes "1920x1080" "1680x1050" "1600x1024" "1600x1000" "1400x1050" "1600x900" "1280x1024" "1440x900" "1280x960" "1366x768" "1360x768" "1280x800" "1152x864" "1280x768" "1280x720" "1024x768" "1280x600" "1024x600" "800x600" "768x576" "640x480"
    EndSubSection
    SubSection "Display"
        Depth 8
        Modes "1920x1080" "1680x1050" "1600x1024" "1600x1000" "1400x1050" "1600x900" "1280x1024" "1440x900" "1280x960" "1366x768" "1360x768" "1280x800" "1152x864" "1280x768" "1280x720" "1024x768" "1280x600" "1024x600" "800x600" "768x576" "640x480"
    EndSubSection
EndSection

Section "Screen"
    Identifier     "Screen1"
    Device         "Videocard1"
    Monitor        "Monitor1"
    DefaultDepth   24
    Option         "NoLogo" "True"
    Option         "UseDisplayDevice" "DFP"
    Option         "AddARGBVisuals" "True"
    Option         "AddARGBGLXVisuals" "True"
    Option         "DynamicTwinView" "False"
    Option         "metamodes" "1920x1080_60 +0+0"
    SubSection "Display"
        Depth 15
        Modes "1920x1080" "1680x1050" "1600x1024" "1600x1000" "1400x1050" "1600x900" "1280x1024" "1440x900" "1280x960" "1366x768" "1360x768" "1280x800" "1152x864" "1280x768" "1280x720" "1024x768" "1280x600" "1024x600" "800x600" "768x576" "640x480"
    EndSubSection
    SubSection "Display"
        Depth 16
        Modes "1920x1080" "1680x1050" "1600x1024" "1600x1000" "1400x1050" "1600x900" "1280x1024" "1440x900" "1280x960" "1366x768" "1360x768" "1280x800" "1152x864" "1280x768" "1280x720" "1024x768" "1280x600" "1024x600" "800x600" "768x576" "640x480"
    EndSubSection
    SubSection "Display"
        Depth 24
        Modes "1920x1080" "1680x1050" "1600x1024" "1600x1000" "1400x1050" "1600x900" "1280x1024" "1440x900" "1280x960" "1366x768" "1360x768" "1280x800" "1152x864" "1280x768" "1280x720" "1024x768" "1280x600" "1024x600" "800x600" "768x576" "640x480"
    EndSubSection
    SubSection "Display"
        Depth 8
        Modes "1920x1080" "1680x1050" "1600x1024" "1600x1000" "1400x1050" "1600x900" "1280x1024" "1440x900" "1280x960" "1366x768" "1360x768" "1280x800" "1152x864" "1280x768" "1280x720" "1024x768" "1280x600" "1024x600" "800x600" "768x576" "640x480"
    EndSubSection
EndSection

Section "Screen"
    Identifier     "Screen2"
    Device         "Videocard2"
    Monitor        "Monitor2"
    DefaultDepth   24
    Option         "NoLogo" "True"
    Option         "UseDisplayDevice" "DFP"
    Option         "AddARGBVisuals" "True"
    Option         "AddARGBGLXVisuals" "True"
    Option         "DynamicTwinView" "False"
    Option         "metamodes" "1920x1080_60 +0+0"
    SubSection "Display"
        Depth 15
        Modes "1920x1080" "1680x1050" "1600x1024" "1600x1000" "1400x1050" "1600x900" "1280x1024" "1440x900" "1280x960" "1366x768" "1360x768" "1280x800" "1152x864" "1280x768" "1280x720" "1024x768" "1280x600" "1024x600" "800x600" "768x576" "640x480"
    EndSubSection
    SubSection "Display"
        Depth 16
        Modes "1920x1080" "1680x1050" "1600x1024" "1600x1000" "1400x1050" "1600x900" "1280x1024" "1440x900" "1280x960" "1366x768" "1360x768" "1280x800" "1152x864" "1280x768" "1280x720" "1024x768" "1280x600" "1024x600" "800x600" "768x576" "640x480"
    EndSubSection
    SubSection "Display"
        Depth 24
        Modes "1920x1080" "1680x1050" "1600x1024" "1600x1000" "1400x1050" "1600x900" "1280x1024" "1440x900" "1280x960" "1366x768" "1360x768" "1280x800" "1152x864" "1280x768" "1280x720" "1024x768" "1280x600" "1024x600" "800x600" "768x576" "640x480"
    EndSubSection
    SubSection "Display"
        Depth 8
        Modes "1920x1080" "1680x1050" "1600x1024" "1600x1000" "1400x1050" "1600x900" "1280x1024" "1440x900" "1280x960" "1366x768" "1360x768" "1280x800" "1152x864" "1280x768" "1280x720" "1024x768" "1280x600" "1024x600" "800x600" "768x576" "640x480"
    EndSubSection
EndSection