2 dual-head PCIe NVIDIA cards to be one screen

[maartenlameris at zonnet.nl]

This works for me with 3 DVI flat pannels on 2 nvidia cards.


my xorg.conf:



Section "Module"

# This loads the DBE extension module.

    Load        "dbe"   # Double buffer extension
    SubSection  "extmod"
    Option    "omit xfree86-dga"   # don't initialise the DGA extension
    EndSubSection
    Load        "type1"
    Load        "freetype"
    Load       "glx"
EndSection

Section "Files"
    RgbPath    "/usr/X11R6/share/X11/rgb"
    FontPath   "/usr/share/fonts/misc/"
    FontPath   "/usr/share/fonts/TTF/"
    FontPath   "/usr/share/fonts/Type1/"
    FontPath   "/usr/share/fonts/75dpi/"
    FontPath   "/usr/share/fonts/100dpi/"
    FontPath   "/usr/share/fonts/local/"
EndSection

Section "ServerFlags"
     Option "Xinerama" "on"
EndSection

Section "Extensions"
    Option "Composite" "true"
EndSection

Section "InputDevice"

    Identifier  "Keyboard1"
    Driver      "kbd"
    Option "AutoRepeat" "500 30"
    Option "XkbRules"   "xorg"
    Option "XkbModel"   "pc101"
    Option "XkbLayout"  "us"
EndSection


Section "InputDevice"
    Identifier  "Mouse1"
    Driver      "mouse"
    Option      "Protocol"    "ExplorerPS/2"
    Option      "Device"      "/dev/input/mice"
    Option              "ZAxisMapping" "4 5"
    Option      "Resolution" "800"
    Option      "CorePointer"
EndSection

Section "Monitor"

    Identifier  "My Monitor"
    HorizSync   31.5 - 64.3
    VertRefresh 50-100

EndSection

Section "Device"
    Identifier  "NVIDIA 7800-0"
    Driver      "nvidia"
    Option      "ConnectedMonitor" "dfp,dfp"
    BusID       "PCI:1:0:0"
    Option "IgnoreDisplayDevices" "CRT, TV"
    Option "ConnectedMonitor" "DFP"
    Option "NoLogo" "On"
    Option "NoLogo" "On"
EndSection


Section "Device"
    Identifier  "NVIDIA 7800-1"
    Driver      "nvidia"
    Option      "ConnectedMonitor" "dfp,dfp"
    Screen      1
    BusID       "PCI:1:0:0"
    Option "IgnoreDisplayDevices" "CRT, TV"
    Option "ConnectedMonitor" "DFP"
    Option "NoLogo" "On"
EndSection


Section "Device"
    Identifier  "NVIDIA 6600"
    Driver      "nvidia"
    BusID       "PCI:2:0:0"
    Option "NoLogo" "On"
    Option "NoLogo" "On"
EndSection

Section "ServerLayout"
 Identifier     "X.org Configured"
 Screen        "Screen0" 0 0
 Screen        "Screen1" RightOf "Screen0"
 Screen        "Screen2" RightOf "Screen1"
 InputDevice    "Mouse1" "CorePointer"
 InputDevice    "Keyboard1" "CoreKeyboard"
EndSection


# **********************************************************************
# Screen sections
# **********************************************************************

Section "Screen"
    Identifier  "Screen2"
    Device      "NVIDIA 6600"
    Monitor     "My Monitor"
    DefaultDepth 24

    Subsection "Display"
        Depth       8
        Modes       "1280x1024" "1024x768" "800x600" "640x480"
        ViewPort    0 0
    EndSubsection
    Subsection "Display"
        Depth       16
        Modes       "1280x1024" "1024x768" "800x600" "640x480"
        ViewPort    0 0
    EndSubsection
    Subsection "Display"
        Depth       24
        Modes       "1280x1024" "1024x768" "800x600" "640x480"
        ViewPort    0 0
    EndSubsection
EndSection

Section "Screen"
    Identifier  "Screen1"
    Device      "NVIDIA 7800-1"
    Monitor     "My Monitor"
    DefaultDepth 24

    Subsection "Display"
        Depth       8
        Modes       "1280x1024" "1024x768" "800x600" "640x480"
        ViewPort    0 0
    EndSubsection
    Subsection "Display"
        Depth       16
        Modes       "1280x1024" "1024x768" "800x600" "640x480"
        ViewPort    0 0
    EndSubsection
    Subsection "Display"
        Depth       24
        Modes       "1280x1024" "1024x768" "800x600" "640x480"
        ViewPort    0 0
    EndSubsection
EndSection


Section "Screen"
    Identifier  "Screen0"
    Device      "NVIDIA 7800-0"
    Monitor     "My Monitor"
    DefaultDepth 24

    Subsection "Display"
        Depth       8
        Modes       "1280x1024" "1024x768" "800x600" "640x480"
        ViewPort    0 0
    EndSubsection
    Subsection "Display"
        Depth       16
        Modes       "1280x1024" "1024x768" "800x600" "640x480"
        ViewPort    0 0
    EndSubsection
    Subsection "Display"
        Depth       24
        Modes       "1280x1024" "1024x768" "800x600" "640x480"
        ViewPort    0 0
    EndSubsection
EndSection





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