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Thread: Screen resolution not retained when shut down

  1. #1
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    Default Screen resolution not retained when shut down

    In my new installation of SUSE 11.2 with KDE, the screen resolution is not being retained when the system is shut down and then powered up again. I have a Viewsonic GT775 and I get a badly distorted desktop when the system starts up as 1280x1024 80Hz. If I go to System Settings and change the resolution to 1280x1024 75Hz, the desktop display locks in beautifully. If I shut down and start up again, the display is back to 80Hz and distorted.
    I found that the correct setting is kept if I suspend to disk and then power up again, the display is perfect and 75Hz, but not with a full shut down.
    I am puzzled that the Display settings seem to have been removed from YAST. I am using configure desktop from the KDE start button.
    Thanks for any help/suggestions you can offer!

  2. #2
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    Default Re: Screen resolution not retained when shut down

    Go to the menu and in the search field type: sax
    click the app icon and run the config from there, test and save
    logout and back in
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  3. #3
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    Default Re: Screen resolution not retained when shut down

    Ah yes, I had tried that.
    SaX2 comes up. It comes up set for 1280x1024 16.7 mil colors (no refresh rate). I push test and the test screen is 1600x1200 75KHz 60Hz and the position and size buttons don't do anything. What am I doing wrong?

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    Default Re: Screen resolution not retained when shut down

    Further on SaX2: I was just in there experimenting with other screen sizes and sometimes SaX2 does not return me to the desktop, I am left with a black screen even after the 30 sec timeout. The Cntl-Alt-backspace beeps the speaker, but nothing else happens. I have to forcbably shut down the machine, restart, reset my refresh rate to 75 Hz (oh yes, and my mouse stops working at that point) so I have to use the keyboard to suspend the system to disk, restart and only then is the system usable again.

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    Default Re: Screen resolution not retained when shut down

    When I was able to try different sizes in SaX2, the test screen was always 1600x1280, not the size that I picked.

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    Default Re: Screen resolution not retained when shut down

    Have you a video driver installed?
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    ATI - openSUSE
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  7. #7
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    Default Re: Screen resolution not retained when shut down

    No.
    I am using a Compaq EVO D515 with a built in graphics chip, an 845 I think. YAST seems to know about it (has it in the hardware list.

  8. #8
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    Default Re: Screen resolution not retained when shut down

    Now it seems to be "broken".
    If I boot normal SUSE, it comes up black screen.
    I can only boot up in Safe mode. The screen is 1275x1024, what I want, but I can't seem to Suspend to Disk in Safe mode? I can only shut down and then it comes up black screen, except if I start Safe mode.
    Also, I got a perfect 1024x768 test screen in SaX2 (from Safe mode), I exited SaX2 and rebooted and now I have a black screen, except for safe mode start.

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    Default Re: Screen resolution not retained when shut down

    You could try removing /etc/X11/xorg.conf

    console login, as user then become su and do

    Code:
    mv /etc/X11/xorg.conf xorg.conf.bak
    reboot
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  10. #10
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    Default Re: Screen resolution not retained when shut down

    Thank you. I did that.
    After reboot, I was able to start in normal mode but again the screen was distorted (looked like 1600x1200).
    I again tried SaX2 and was able to do several iterations, 1280x1024 and 1024x768 but in all cases the refresh rate was too high: 90 Hz, 80 Hz and I cannot control this. Reminds me of Windows NT issues I used to have many years ago.
    I tried varying the number of colors displayed and made some differences, but never a stable locked in full screen display. Finally after the fifth try, SaX2 didn't come back and I was left on a black screen requiring forced shut down. Rebooted in Safe mode and I now have a stable 1280x1024 screen to write you this but I think that if I close the system, I will not have a stable screen on reboot, unless Safe mode again.
    Frustrating. Any other ideas?

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