Dual Monitor Display Help

Peter Boy pboy at barkhof.uni-bremen.de
Thu Oct 9 21:18:38 UTC 2008


Am Dienstag, den 07.10.2008, 17:05 +0100 schrieb Dan Track:
> Hi
> 
> I've got a ATI 3870 graphics card with two DVI connections. I've got
> one monitor running but how do I configure a second monitor?

You must manually configure /etc/X11/xorg.conf

Mine is (relevant parts only):

# xorg configuration

Section "ServerLayout"
        Identifier     "ATI dual head configuration"
        Screen      0  "Default Screen" 0 0
        InputDevice    "Mouse0" "CorePointer"
        InputDevice    "Keyboard0" "CoreKeyboard"
EndSection

Section "Module"
    .......
EndSection

Section "Device"
        Identifier      "ATI Radeon"
        Driver          "radeon"
        VendorName      "ATI corp."
        BoardName       "ATI Technologies Inc RV350 AP [Radeon 9600]"
        BusID           "PCI:1:0:0"
        # Option        "AGPFastWrite"  "on"
        # Option                "AccelMethod"  "EXA"
        Option          "Monitor-DVI-0" "Panel-0"
        Option          "Monitor-DVI-1" "Panel-1"
EndSection

Section "Monitor"

        Identifier   "Panel-1"
        VendorName   "Monitor Vendor"
        ModelName    "NEC MultiSync LCD1700NX (Digital)"
        # Comment all HorizSync and VertSync values to use DDC:
        # HorizSync    31.0 - 68.0
        # VertRefresh  56.0 - 75.0
        # DisplaySize  340      270
        Option  "dpms"
#       Option  "LeftOf" "Panel-0"
#       Option  "Ignore" "true"

EndSection

Section "Monitor"

        Identifier   "Panel-0"
        VendorName   "Monitor Vendor"
        ModelName    "NEC MultiSync LCD1700NX (Digital)"
        # Comment all HorizSync and VertSync values to use DDC:
        # HorizSync    31.0 - 68.0
        # VertRefresh  56.0 - 75.0
        # DisplaySize  340      270
        Option      "dpms"
        Option  "RightOf" "Panel-1"

EndSection

Section "Screen"
        Identifier "Default Screen"
        Device     "ATI Radeon"
        Monitor    "Panel-1"
        DefaultDepth     24

        SubSection "Display"
                Viewport   0 0
                Depth     24
                # big virtual screen to place the monitors
                Virtual   2560 1024
#               Modes    "1280x1024" "1024x768" "800x600" "640x480"
        EndSubSection

EndSection







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