Radeon HD 3200, onboard
Section "Device"
        Identifier      "driver0"
        Screen          0
        Driver          "radeon"
        BusID           "PCI:01:05:0"
EndSection
Section "Device"
        Identifier      "driver1"
        Screen          1
        Driver          "radeon"
        BusID           "PCI:01:05:0"
EndSection
# Fire MV2250, extra card
Section "Device"
        Identifier      "driver2"
        Screen          0
        Option          "ZaphodHeads" "DVI-1"
        Driver          "radeon"
        BusID           "PCI:02:00:0"
EndSection
# shows up as two devices
Section "Device"
        Identifier      "driver3"
        Screen          1
        Option          "ZaphodHeads" "DVI-2"
        Driver          "radeon"
        BusID           "PCI:02:00:0"
EndSection

Section "Screen"
        Device          "driver0"
        Identifier      "screen0"
        DefaultDepth    24
        SubSection      "Display"
                Viewport        0 0
        EndSubSection
EndSection
Section "Screen"
        Device          "driver1"
        Identifier      "screen1"
        DefaultDepth    24
        SubSection      "Display"
                Viewport        0 0
        EndSubSection
EndSection
Section "Screen"
        Device          "driver2"
        Identifier      "screen2"
        DefaultDepth    24
        SubSection      "Display"
                Viewport        0 0
        EndSubSection
EndSection
Section "Screen"
        Device          "driver3"
        Identifier      "screen3"
        DefaultDepth    24
        SubSection      "Display"
                Viewport        0 0
        EndSubSection
EndSection


Section "ServerLayout"
        Identifier      "default"
        Screen          0 "screen2" 0 0
        Screen          1 "screen3" RightOf "screen2"
        Screen          2 "screen0" RightOf "screen3"
        Screen          3 "screen1" RightOf "screen0"
        Option          "xinerama" "on"
EndSection