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Multi GPU Device Setup in Ubuntu 12.04

Question asked by chevydevil on Sep 13, 2012
Latest reply on Sep 14, 2012 by yurtesen

After half an hour of unsuccessfully searching for a solution I have to ask: How do I setup multi GPU Devices to work with AMD APP 2.7 in Ubuntu 12.04 without having all of them connected to a monitor?

 

Thx

 

Edit: For what it's worth, this is my xorg.conf file:

 

Section "ServerLayout"

    Identifier     "real desktop"

    Screen      0  "aticonfig-Screen[0]-0" 0 0

    Screen      1  "aticonfig-Screen[1]-0" 3000 3000

EndSection

 

Section "Module"

EndSection

 

Section "Monitor"

    Identifier   "aticonfig-Monitor[0]-0"

    Option        "VendorName" "ATI Proprietary Driver"

    Option        "ModelName" "Generic Autodetecting Monitor"

    Option        "DPMS" "true"

EndSection

 

Section "Monitor"

    Identifier   "aticonfig-Monitor[1]-0"

    Option        "VendorName" "ATI Proprietary Driver"

    Option        "ModelName" "Generic Autodetecting Monitor"

    Option        "DPMS" "true"

EndSection

 

Section "Device"

    Identifier  "aticonfig-Device[0]-0"

    Driver      "fglrx"

    BusID       "PCI:1:0:0"

EndSection

 

Section "Device"

    Identifier  "aticonfig-Device[1]-0"

    Driver      "fglrx"

    BusID       "PCI:2:0:0"

EndSection

 

Section "Screen"

    Identifier "aticonfig-Screen[0]-0"

    Device     "aticonfig-Device[0]-0"

    Monitor    "aticonfig-Monitor[0]-0"

    DefaultDepth     24

    SubSection "Display"

        Viewport   0 0

        Depth     24

    EndSubSection

EndSection

 

Section "Screen"

    Identifier "aticonfig-Screen[1]-0"

    Device     "aticonfig-Device[1]-0"

    Monitor    "aticonfig-Monitor[1]-0"

    DefaultDepth     24

    SubSection "Display"

        Viewport   0 0

        Depth     24

    EndSubSection

EndSection

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