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    Display Resolution and System Settings

    Since I supposedly "fixed" my Nvidia driver installation, I'm having a rather strange problem with my display resolution. The short summary of the symptoms are as follows:
    1. My display native resolution is 1680x1050.
    2. When my system first boots, it comes up in 1600x1200 resolution, pan mode (as you move the cursor to the edges it pans).
    3. As soon as I open "System Settings" and invoke "Display", it corrects the display resolution to 1680x1050.

    A little more background.
    1. Since updating from 8.04 to 8.10, I had been having occasional display "glitches" where display map suddenly gets goofy, usually the first 10% of the left side would wrap around to the right. Relatively infrequent, but not supposed to happen.
    2. Finally one day I was having trouble with a video streaming application that led me to discover that something was amiss with my Nvidia driver ("Nvidia Xserver Settings" was complaining) . So I blow away all Nvidia driver support, and reinstall the appropriate one (I have 96.43.09), and let it create a new xorg.conf file.
    3. At this point, the video streaming app now loads and is functional, and "Nvidia X Server Settings" seems happy enough, but my display is distorted (squeezed aspect ratio) and I discover I'm in 1600x1200 mode, scaled to 1680x1050 (not panning, as described above). "System Settings->Display" does not show 1680x1050.
    4. Next step, I invoke Nvidia X server setting (I had to 'sudo' it from the command line as KDE4 doesn't have a "sudo" option from the menus, that's annoying!), and let it modify my xorg.conf file to add my monitor and the 1680x1050 resolution.

    I haven't seen a recurrence of the glitch, (I fixed the glitch) just this last little weirdness. It's really annoying. Does anyone have any ideas?

    Thanks,




    #2
    Re: Display Resolution and System Settings

    bump

    Comment


      #3
      Re: Display Resolution and System Settings

      Do you have any ModeLine entries in your xorg.conf? If you do, could you back up your xorg.conf, delete the ModeLine and see if it improves?

      Comment


        #4
        Re: Display Resolution and System Settings

        No ModeLine entries. I don't see where the default resolution is set, only a list of possible settings in Section "Screen". Here's my xorg.conf file:

        # nvidia-settings: X configuration file generated by nvidia-settings
        # nvidia-settings: version 1.0 (buildd@palmer) Mon Nov 3 08:46:46 UTC 2008

        # nvidia-xconfig: X configuration file generated by nvidia-xconfig
        # nvidia-xconfig: version 1.0 (buildmeister@builder57) Mon Oct 27 14:37:20 PST 2008

        Section "ServerLayout"
        Identifier "Layout0"
        Screen 0 "Screen0" 0 0
        InputDevice "Keyboard0" "CoreKeyboard"
        InputDevice "Mouse0" "CorePointer"
        EndSection

        Section "Files"
        EndSection

        Section "Module"
        Load "dbe"
        Load "extmod"
        Load "type1"
        Load "freetype"
        Load "glx"
        EndSection

        Section "ServerFlags"
        Option "Xinerama" "0"
        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 "Acer P221W"
        HorizSync 31.0 - 83.0
        VertRefresh 56.0 - 75.0
        Option "DPMS"
        EndSection

        Section "Device"
        Identifier "Device0"
        Driver "nvidia"
        VendorName "NVIDIA Corporation"
        BoardName "GeForce2 MX/MX 400"
        EndSection

        Section "Screen"
        Identifier "Screen0"
        Device "Device0"
        Monitor "Monitor0"
        DefaultDepth 24
        Option "TwinView" "0"
        Option "TwinViewXineramaInfoOrder" "CRT-0"
        Option "metamodes" "1680x1050_60 +0+0; 1600x1200 +0+0; 1280x1024 +0+0; 1024x768 +0+0; 800x600 +0+0; 640x480 +0+0"
        SubSection "Display"
        Depth 24
        EndSubSection
        EndSection

        Comment


          #5
          Re: Display Resolution and System Settings

          Have you tried to remove all the resolutions except the one you want from the "Metamodes" section? Or do you need to work in those resolutions occasionally?

          Comment


            #6
            Re: Display Resolution and System Settings

            Great suggestion, that seems to have done it. Thanks!

            Comment

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