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Thread: Screen resolution changed to 800x600

  1. #1
    Join Date
    Oct 2012
    Beans
    2

    Screen resolution changed to 800x600

    I turned my computer on this morning to discover that my screen resolution had changed. It normally runs at something reasonably high (1400-1600, or sometime like that), but it had now been reduced to 800x600 and didn't fill my monitor, leaving a large black border round the entire screen.

    That is the only option I now have in System Settings > Displays.

    I've tried running apt-get upgrade and update, and unity --reset.

    I'm running the "NVIDIA accelerated graphics driver (current version)", which is the same one I've always been running. I tried switching to the post-release updates version, but that stopped X/Gnome from loading at all, and I had to switch back to the current release from the command line.

    When I run xrandr, I get:

    xrandr: Failed to get size of gamma for output default
    Screen 0: minimum 800 x 600, current 800 x 600, maximum 800 x 600
    default connected 800x600+0+0 0mm x 0mm
    800x600 75.0*

    Any ideas? Thanks.

  2. #2
    Join Date
    Oct 2012
    Beans
    2

    Re: Screen resolution changed to 800x600

    I've resolved the issue. Here is what I did:

    * Exit X (sudo service lightdm stop)
    * Remove all Nvidia drivers - sudo apt-get purge nvidia*
    * Reboot the system
    * Open up System Settings > Additional Drivers
    * Select the first "NVIDIA binary Xorg driver, kernal module and VPDAU library"
    * Click activate
    * Reboot the system again

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