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Thread: Problem with monitor resolution in user. openSUSE 42.3

  1. #1

    Default Problem with monitor resolution in user. openSUSE 42.3

    I have a HDMI monitor. Running KDE Plasm desktop I attempted to run a old game under Wine and the resolution got screwed up. I tried to switch back the resolution to 1600x900 ( what I had been running) and i ended up with a black screen. Rebooting just brings up a black screen again and the only thing I can do is switch to root with a Ctrl+Alt+DEL and then enter Switch user and in root it display fine. But changing the monitor sections in it does not fix the problem when trying to boot to user. I can boot up with a VGA cable and the monitor works fine in user mode.

    I suspect there is a configuration file that the system checks for User monitor resolution default and it is messed up. Does anyone know what file I should change or some way to force the system to re-detect my monitor and set proper modes?

    Thanks for any assistance.

  2. #2
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    Default Re: Problem with monitor resolution in user. openSUSE 42.3

    Quote Originally Posted by Matt2B View Post
    I have a HDMI monitor. Running KDE Plasm desktop I attempted to run a old game under Wine and the resolution got screwed up. I tried to switch back the resolution to 1600x900 ( what I had been running) and i ended up with a black screen. Rebooting just brings up a black screen again and the only thing I can do is switch to root with a Ctrl+Alt+DEL and then enter Switch user and in root it display fine. But changing the monitor sections in it does not fix the problem when trying to boot to user. I can boot up with a VGA cable and the monitor works fine in user mode.

    I suspect there is a configuration file that the system checks for User monitor resolution default and it is messed up. Does anyone know what file I should change or some way to force the system to re-detect my monitor and set proper modes?

    Thanks for any assistance.
    Hi and welcome to the Forum
    Check the file ~/.config/monitors.xml file may be your issue. If not, can you create a test user and log in as the test user to confirm if it's at the user level or system level.
    Cheers Malcolm °¿° SUSE Knowledge Partner (Linux Counter #276890)
    SUSE SLE, openSUSE Leap/Tumbleweed (x86_64) | GNOME DE
    If you find this post helpful and are logged into the web interface,
    please show your appreciation and click on the star below... Thanks!

  3. #3
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    Wink Re: Problem with monitor resolution in user. openSUSE 42.3

    I'd guess the switch to a lower resolution for some reason increased the frequency (like in old CRT monitors?) and didn't go back to 60Hz on HDMI native resolution. This used to give a black/blue screen. Or am I too old?

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    Default Re: Problem with monitor resolution in user. openSUSE 42.3

    Is it normal when logging into IceWM instead of Plasma?

    While the normal user is logged out of X, deleting his ~/.cache/ directory's content might be all that is needed, or maybe deleting both that and ~/.config/monitors.xml at the same time.
    Reg. Linux User #211409 *** multibooting since 1992
    Primary: 42.3,TW,15.0 & 13.1 on Haswell w/ RAID
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  5. #5

    Default Re: Problem with monitor resolution in user. openSUSE 42.3

    Quote Originally Posted by malcolmlewis View Post
    Hi and welcome to the Forum
    Check the file ~/.config/monitors.xml file may be your issue. If not, can you create a test user and log in as the test user to confirm if it's at the user level or system level.
    I do not seem to have a .config/monitor file in my User home directory. I tried making a test user and was able to run through a boot with the HDMI cable into the user account. It worked without problem so I know it is likely a setting file.

    I will look at the .cache/directory and see what I can find.

  6. #6

    Default Re: Problem with monitor resolution in user. openSUSE 42.3

    I am rusty on command line stuff so do not recall how I would leave X and than delete the user/.cache/directory file I looked at in Dolphin and it seem to just be a indication of last boot time
    [Dolphin]
    Timestamp=2019,11,3,21,24,12
    Version=4

    [Settings]
    HiddenFilesShown=true

    BTW, I can use IceWM without incident.

  7. #7

    Default Re: Problem with monitor resolution in user. openSUSE 42.3

    I think I solved it. home/.local/share/kscreen there were several files related to monitor settings. I deleted them and restarted with the HDMI cable connected. Worked

    Thanks for everyones assistance.

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    Default Re: Problem with monitor resolution in user. openSUSE 42.3

    Quote Originally Posted by Matt2B View Post
    I think I solved it. home/.local/share/kscreen there were several files related to monitor settings. I deleted them and restarted with the HDMI cable connected. Worked

    Thanks for everyones assistance.
    Well done. (The ~/.config/monitors.xml pertains to Gnome desktop anyway.)
    openSUSE Leap 15.1; KDE Plasma 5

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