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Thread: Recent update of Plasma/KDE forced graphics display resolution to VGA 640x480

  1. #1

    Default Recent update of Plasma/KDE forced graphics display resolution to VGA 640x480

    Running Leap 42.3 with KDE Plasma Version 5.8.7, KDE Frameworks Version 5.32.0, Qt Version 5.6.2, Kernel Cersion 4.4.180-102-default, and with Radeon Saphire HD6450 2G DDR3, PCI-E SKU 11190-09-20G. Display has been set in Grub to video= 1920x1080 @60 Hz and this was working well until a recent update when my screen reverted to VGA 640 x 480 which makes life difficult. Switching to IceWM brought the screen back to required resolution. No idea what is wrong but thought somebody might need to know.

  2. #2
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    Default Re: Recent update of Plasma/KDE forced graphics display resolution to VGA 640x480

    Have you tried changing the display resolution in KDE ?

    System Settings -> Display and Monitor - Displays

    http://paste.opensuse.org/view/raw/ef064817
    Regards, Paul

    Tumbleweed (Snapshot: 20190918) KDE Plasma 5
    Non-Tumbling Tumblweed (20150508) KDE 4 - Resurrected
    2x Leap 15.1 KDE Plasma 5

  3. #3

    Default Re: Recent update of Plasma/KDE forced graphics display resolution to VGA 640x480

    Quote Originally Posted by tannington View Post
    Have you tried changing the display resolution in KDE ? System Settings -> Display and Monitor - Displays http://paste.opensuse.org/view/raw/ef064817
    Hi Paul and thanks for the reply. I have tried many things but couldn't get anywhere whereas IceWM and a live boot to antiX both worked fine. I have looked at the news and see that 42.3 support will shortly stop so, as I type, zypper dup is running and downloading 5771 files for Leap 15.0. Hope it they all work. Regards, Budge

  4. #4
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    Default Re: Recent update of Plasma/KDE forced graphics display resolution to VGA 640x480

    OK - Yes, probably a sensible move, 42.3 is end of life at the end of, this month, I believe.

    5771, 5770, 5769 ...
    Regards, Paul

    Tumbleweed (Snapshot: 20190918) KDE Plasma 5
    Non-Tumbling Tumblweed (20150508) KDE 4 - Resurrected
    2x Leap 15.1 KDE Plasma 5

  5. #5

    Default Re: Recent update of Plasma/KDE forced graphics display resolution to VGA 640x480

    Quote Originally Posted by tannington View Post
    OK - Yes, probably a sensible move, 42.3 is end of life at the end of, this month, I believe.

    5771, 5770, 5769 ...
    Well I'm back again and now on Leap 15.0. Very relieved to report that zypper dup with the four basic repos has actually worked. Still no joy with graphics so I have logged into IceWM and so far so good. A few logos empty (plain white blobs) but working. Will get my multimedia set up and then try and sort out the rest. I shall now report on Leap 15.0. Hoorah!!!

  6. #6
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    Default Re: Recent update of Plasma/KDE forced graphics display resolution to VGA 640x480

    I only upgraded to Leap 15.0 myself quite recently, although 15.1 has been released I'll stay with 15.0 for a while longer - I'm a late adopter when it comes to the stable releases

    Quote Originally Posted by Budgie2 View Post
    ... Still no joy with graphics so I have logged into IceWM and so far so good. ...
    Just to clarify. - The resolution is correct on the grub menu and the sddm login screen, it's only after you have logged into KDE the resolution changes?

    As well as checking the KDE resolution setting I outlined in post #2 it might be worth also taking a look at "System Settings -> Desktop Behaviour -> Desktop Effects - Zoom" to ensure that's switched off.

    Have you tried with a new user?
    Regards, Paul

    Tumbleweed (Snapshot: 20190918) KDE Plasma 5
    Non-Tumbling Tumblweed (20150508) KDE 4 - Resurrected
    2x Leap 15.1 KDE Plasma 5

  7. #7
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    Default Re: Recent update of Plasma/KDE forced graphics display resolution to VGA 640x480

    Quote Originally Posted by tannington View Post
    Have you tried with a new user?
    Note that this is a fork of a Hardware thread, where the same question was asked but unanswered. That IceWM works at 1920x1080 clearly indicates this is a KDE issue. Answering the twice asked question would clarify whether it is a KDE software issue or a personal KDE settings problem.
    Reg. Linux User #211409 *** multibooting since 1992
    Primary: 42.3,TW,15.0 & 13.1 on Haswell w/ RAID
    Secondary: eComStation (OS/2)&42.3 on 965P/Radeon
    Tertiary: TW,15.0,42.3,Fedora,Debian,more on Kaby Lake,Q45,Q43,G41,G3X,965G,Cedar,Caicos,Oland,GT218&&&

  8. #8

    Default Re: Recent update of Plasma/KDE forced graphics display resolution to VGA 640x480

    Quote Originally Posted by tannington View Post
    I only upgraded to Leap 15.0 myself quite recently, although 15.1 has been released I'll stay with 15.0 for a while longer - I'm a late adopter when it comes to the stable releases



    Just to clarify. - The resolution is correct on the grub menu and the sddm login screen, it's only after you have logged into KDE the resolution changes?

    As well as checking the KDE resolution setting I outlined in post #2 it might be worth also taking a look at "System Settings -> Desktop Behaviour -> Desktop Effects - Zoom" to ensure that's switched off.

    Have you tried with a new user?
    Hi Paul, sorry for the delay but upgrading on laptop required new installation (not this machine) as it all went pear shaped.

    First:-
    I have set up a new user and this seems to work OK with correct display resolution.

    Second:- When I looked at the Desktop Effects settings with this new user the zoom was switched on but this new user resolution is still OK. I have now switched off zoom. Will log out and go back to original user.

    Regards,

  9. #9

    Default Re: Recent update of Plasma/KDE forced graphics display resolution to VGA 640x480

    Logged into my own account and display is back to VGA 640x480. Checked the settings and zoom was turned on so I have turned it off but clearly that didn't make any difference when I was logged in as a new user. It is clear my own settings are what have screwed things up. Where do I start?

  10. #10
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    Default AW: Recent update of Plasma/KDE forced graphics display resolution to VGA 640x480

    Maybe delete the files in ~/.local/share/kscreen/

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