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Thread: Spanning window across 4 monitors

  1. #1
    Join Date
    Mar 2007
    Beans
    24

    Cool Spanning window across 4 monitors

    So I have this setup and I need to span a Google Chrome window across all 4 monitors. I'm using 2x Nvidia 650Tis outputting to 4x 1080 screens.

    I can manually stretch a window to fill all 4 screens, but when I maximize it, it only fills 2 screens. I'm using 2 Nvidia Twinview sections for each screen pair coming off the card.

    How do I get the window to automagically fill all 4 screens?

    Xorg.conf:

    Code:
    # nvidia-settings: X configuration file generated by nvidia-settings
    # nvidia-settings:  version 304.37  (buildd@roseapple)  Sun Sep  9 05:59:38 UTC 2012
    
    # nvidia-xconfig: X configuration file generated by nvidia-xconfig
    # nvidia-xconfig:  version 304.43  (buildmeister@swio-display-x86-rhel47-02.nvidia.com)  Sun Aug 19 21:28:54 PDT 2012
    
    Section "ServerLayout"
    
    # Removed Option "Xinerama" "0"
        Identifier     "Layout0"
        Screen      0  "Screen0" 0 0
        Screen      1  "Screen1" RightOf "Screen0"
        InputDevice    "Keyboard0" "CoreKeyboard"
        InputDevice    "Mouse0" "CorePointer"
        Option         "Xinerama" "1"
    EndSection
    
    Section "Files"
    EndSection
    
    Section "InputDevice"
    
        # generated from default
        Identifier     "Mouse0"
        Driver         "mouse"
        Option         "Protocol" "auto"
        Option         "Device" "/dev/psaux"
        Option         "Emulate3Buttons" "no"
        Option         "ZAxisMapping" "4 5"
    EndSection
    
    Section "InputDevice"
    
        # generated from default
        Identifier     "Keyboard0"
        Driver         "kbd"
    EndSection
    
    Section "Monitor"
        Identifier     "Monitor0"
        VendorName     "Unknown"
        ModelName      "LG Electronics LG TV"
        HorizSync       31.0 - 82.0
        VertRefresh     57.0 - 63.0
        Option         "DPMS"
    EndSection
    
    Section "Monitor"
        Identifier     "Monitor1"
        VendorName     "Unknown"
        ModelName      "LG Electronics LG TV"
        HorizSync       31.0 - 82.0
        VertRefresh     57.0 - 63.0
    EndSection
    
    Section "Device"
        Identifier     "Device0"
        Driver         "nvidia"
        VendorName     "NVIDIA Corporation"
        BoardName      "D14P2-30"
        BusID          "PCI:1:0:0"
    EndSection
    
    Section "Device"
        Identifier     "Device1"
        Driver         "nvidia"
        VendorName     "NVIDIA Corporation"
        BoardName      "D14P2-30"
        BusID          "PCI:2:0:0"
    EndSection
    
    Section "Screen"
        Identifier     "Screen0"
        Device         "Device0"
        Monitor        "Monitor0"
        DefaultDepth    24
        Option         "Stereo" "0"
        Option         "nvidiaXineramaInfoOrder" "DFP-0"
        Option         "metamodes" "DFP-0: nvidia-auto-select +0+0, DFP-2: nvidia-auto-select +1920+0"
        SubSection     "Display"
            Depth       24
        EndSubSection
    EndSection
    
    Section "Screen"
        Identifier     "Screen1"
        Device         "Device1"
        Monitor        "Monitor1"
        DefaultDepth    24
        Option         "Stereo" "0"
        Option         "metamodes" "DFP-0: nvidia-auto-select +0+0, DFP-2: nvidia-auto-select +1920+0"
        SubSection     "Display"
            Depth       24
        EndSubSection
    EndSection
    
    Section "Extensions"
        Option         "Composite" "Disable"
    EndSection

    I currently have each display set up as a separate X screen with xinerama enabled, and I have a working four-monitor desktop setup in a 4x1 arrangement. However, because each display constitutes a separate screen, when I do something like maximize a window, it only fills the one monitor.

    I'd really like Ubuntu to treat all of my monitors as one giant screen instead of distinguishing between separate displays (i.e., if I maximize something, it would stretch across all the monitors). It seems like Twinview is designed to do this, but I haven't heard about using it for anything other than two outputs on the same video card. I want to link four monitors that are plugged into two video cards. Is this possible?
    Last edited by tyeo098; January 15th, 2013 at 08:37 PM.

  2. #2
    Join Date
    Dec 2013
    Beans
    1

    Re: Spanning window across 4 monitors

    Hello,

    I would like to know if you have a solution for your problem. I would be really interested in the solution. Currently we are attempting to do a similar thing. We an Nvidia Quadro with 4 monitors connected.
    We would like to use 1 as the primary and use the 3 others to displays to be seen as a single 1920 x 1080 display, to basically display a web browser page (Chrome).

    Do you have any idea??

    Thank you!

    Pat

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