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Thread: Dual Monitor Minssing with Nouveau

  1. #1

    Default Dual Monitor Minssing with Nouveau

    I've made a bit of a mess.

    My Tumbleweed machine was running just fine with Nouveau and giving me a dual monitor display - laptop and external monitor.

    I wanted to try out the Nvidia drivers, but initially made a mess, and got it up and running.

    But I went back to nouveau.

    However now, the external monitor is non-existent as far as the system is concerned.


    xrandr is not reporting the attached monitor.


    xrandr: Failed to get size of gamma for output default
    Screen 0: minimum 1920 x 1080, current 1920 x 1080, maximum 1920 x 1080
    default connected primary 1920x1080+0+0 0mm x 0mm
    1920x1080 77.00*


    hwinfo reports:

    94: None 00.0: 10000 Monitor
    [Created at fb.71]
    Unique ID: rdCR.EY_qmtb9YY0
    Hardware Class: monitor
    Model: "Generic Monitor"
    Vendor: "Generic"
    Device: "Monitor"
    Resolution: 1920x1080@77Hz
    Year of Manufacture: 0
    Week of Manufacture: 0
    Driver Info #0:
    Max. Resolution: 1920x1080
    Vert. Sync Range: 50-90 Hz
    Hor. Sync Range: 31-87 kHz
    Config Status: cfg=no, avail=yes, need=no, active=unknown


    Help greatly appreciated.

  2. #2

    Talking Re: Dual Monitor Minssing with Nouveau

    OK, I worked out the solution.


    • Uninstall all Nvidia packages
    • rmmod any Nvidia kernal modules
    • delete any Nvidia .conf files in /etc/modprobe.d/
    • reboot


    I now have my dual monitor configuration back!

  3. #3
    Join Date
    Oct 2014
    Location
    Switzerland
    Posts
    563

    Default Re: Dual Monitor Minssing with Nouveau

    Be aware that you may run into a "double cursor" if you use xrender compositor (which worked the best for me with lenovo laptops with dGPU).

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