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Re: Dualhead on laptop

Nicolas wrote:
Anyone get an exernal monitor working as a second screen (not twinview) with geforce2go (or what ever card you have)? I tried as in the nVidia doc, but without success. If I don't specify "screen 0" or "screen 1" in the Device section, the second monitor don't receive signal. If I specify it, the laptop freeze :o( If you need my XF86Config file, just let me know.

If you are using NVidia's twin-view feature, then the driver presents the both screens to the xserver as a single screen. You should have only one Screen section. You need to read NVidia's documentation on how to set up twinview. My guess is that you probably want to add something like the following to your 'Device' section:

    # Enable Twinview
    option "TwinView"        "true"

    # Force types of connected displays
    # Options are TV, CRT, DFP
    option "ConnectedMonitor"    "DFP,DFP"

    # Frequencies for second monitor
    option "SecondMonitorHorizSync"    "30-107"
    option "SecondMonitorVertRefresh" "75"

    # Real modes for each display
option "MetaModes" "1280x1024, 1280x1024; 1152x864, 1152x864; 1024x768, 1024x768; 800x600, 800x600; 640x480, 640x480"

    # Screen layout
    option "TwinViewOrientation"    "LeftOf"

If that doesn't work, you can present the screens separately to the X server and combine them using the Xinerama extension. To do this, you need to specify two 'Device' sections (and two Monitor sections and two Screen sectoins.) The first five lines of each of the device sections should be something like:
Section "Device"
    Identifier    "driver0"
    Driver        "nvidia"
    BusID         "PCI:1:0:0"
    Screen        0
    option        "TwinView"        "false"
    Identifier    "driver1"
    Driver        "nvidia"
    BusID         "PCI:1:0:0"
    Screen        1
    option        "TwinView"        "false"

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