Dual Video card setup?

English Hardware
1

I’m trying to get my 2nd video card working without any luck.

The first is an Nvidia 8400m GS, the second is an Nvidia GTX260.

They are both detected by lspci -

lspci | grep VGA
05:00.0 VGA compatible controller: nVidia Corporation G86 [GeForce 8400M GS] (rev a1)
09:00.0 VGA compatible controller: nVidia Corporation GT200 [GeForce GTX 260] (rev a1)

But the Nvidia control panel thing doesn’t seem to recognise the second card.

Here is the xorg.conf that I was trying to use -

Section "ServerLayout"
        Identifier     "Multihead layout"
        Screen      0  "Screen0" 0 0
        Screen      1  "Screen1" RightOf "Screen0"
        InputDevice    "Mouse0" "CorePointer"
        InputDevice    "Keyboard0" "CoreKeyboard"
        Option      "Xinerama" "on"
        Option      "Clone" "off"
EndSection

Section "Files"
EndSection

Section "InputDevice"
    Identifier     "Mouse0"
    Driver         "mouse"
    Option         "Protocol" "IMPS/2"
    Option         "Device" "/dev/input/mice"
    Option         "Emulate3Buttons" "yes"
    Option         "ZAxisMapping" "4 5"
EndSection

Section "InputDevice"
    Identifier     "Keyboard0"
    Driver         "kbd"
EndSection

Section "Monitor"
    Identifier     "Monitor0"
    VendorName     "Seiko"
    ModelName      "Seiko"
    HorizSync       30.0 - 75.0
    VertRefresh     60.0
    Option         "DPMS"
EndSection

Section "Monitor"
    Identifier     "Monitor1"
    VendorName     "AOC"
    ModelName      "AOC 2236"
    HorizSync       30.0 - 80.0
    VertRefresh     56.0 - 75.0
    Gamma           0.6
    Option         "DPMS"
EndSection

Section "Device"
        Identifier  "Videocard0"
        Driver      "nvidia"
        VendorName  "NVIDIA Corporation"
#        BusID       "PCI:5:0:0"
        BoardName   "GeForce 8400M GS"
        Screen 0
EndSection

Section "Device"
        Identifier  "Videocard1"
        Driver      "nvidia"
        VendorName  "NVIDIA Corporation"
#        BusID       "PCI:9:0:0"
        BoardName   "GeForce GTX 260"  
        Screen 1
EndSection



Section "Screen"
        Identifier   "Screen0"
        Device       "Videocard0"
        Monitor      "Monitor0"
        DefaultDepth 24
        SubSection "Display"
             Depth 24
        EndSubSection
EndSection

Section "Screen"
        Identifier   "Screen1"
        Device       "Videocard1"
        Monitor      "Monitor1"
        DefaultDepth 24
        SubSection "Display"
             Depth 24
        EndSubSection
EndSection

Section "Extensions"
    Option         "Composite" "Enable"
EndSection

Any ideas where to go from here?

Thanks.

2

Why are the Bus ID portions of your “Device” sections commented out? That may be the cause of your problem. I have a post here that contains my xorg.conf that was working with 2 video cards and 3 monitors. It may be of some help to you. If you need further help, I will be glad to provide what assistance I can.