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Thread: Hot screen resizing

  1. #1

    Default Hot screen resizing

    openSUSE 11.2 x64, KDE_4.3.4
    Geforce 9500GT, the latest Nvidia driver is installed
    I have monitor and TV - both are the same resolution. Now i use twinView. It is ok until i want to play games - the picture is in the middle of screens. Now i must disable TV when i want to play.
    I want to be able to resize my screens to one of them (3840x1080 --> 1920x1080).
    I think this can be done with xrandr, but i can't understand how i can use it.

    dima@host-120-5-75:~> xrandr -q
    Screen 0: minimum 1920 x 1080, current 3840 x 1080, maximum 3840 x 1080
    default connected 3840x1080+0+0 0mm x 0mm
    3840x1080 50.0* 51.0
    1920x1080 51.0

    dima@host-120-5-75:~> xrandr -s 0
    dima@host-120-5-75:~> xrandr -s 1
    Failed to change the screen configuration!
    dima@host-120-5-75:~>

    Any help is appreciated

  2. #2
    Join Date
    Dec 2008
    Location
    Sydney, Australia
    Posts
    1,021

    Default Re: Hot screen resizing

    The NVIDIA driver doesn't support xrandr 1.2, only earlier versions. Not sure if changing screen resolution (and output target) on the fly is a 1.2 feature but I suspect that's your problem.
    Günter

    Desk: Tumbleweed, KDE 5, AMD Ryzen 5 3400G, 16Gb, 120Gb SSD, 2 SATA.
    Lap: Thinkpad T430, Tumbleweed, Intel i5, 8Gb, SSD.

  3. #3

    Default Re: Hot screen resizing

    Ok
    Then what can i try else except xrandr to resize screen on fly?
    What is the best practice in linux for that? I hope i am not the only one who has dual monitor configuration.

  4. #4
    Join Date
    Dec 2008
    Location
    Sydney, Australia
    Posts
    1,021

    Default Re: Hot screen resizing

    Not sure, someone else might come up with something. Assuming my explanation is the correct one, it's not really Linux' fault but NVIDIA's. I suspect xrandr will do what you want if you don't use the proprietary NVIDIA driver. I had a similar problem with rotating just one of two monitors on an NVDIA dual-head, just can't be done because of the poor xrandr support and the built-in limitations of Twinview.
    You'll probably have to make do with a restart of X... Unless someone here knows differently.
    Günter

    Desk: Tumbleweed, KDE 5, AMD Ryzen 5 3400G, 16Gb, 120Gb SSD, 2 SATA.
    Lap: Thinkpad T430, Tumbleweed, Intel i5, 8Gb, SSD.

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