Ubuntu – Ubuntu 20.4 LTS upgrade graphical glitches


I updated from 18.04 LTS to 20.04 LTS and now my Desktop and the text in the toolbar have weird graphical glitches (see screenshot). They different every time I restart.

Does somebody have an idea what could be the problem and where I should start looking? My first guess would be that some module got removed accidentally but I wouldn't know which one.

I also tried to reinstall ubuntu-desktop.


xxx:~$ lspci -k | grep -EA3 'VGA|3D|Display'

00:02.0 VGA compatible controller: Intel Corporation UHD Graphics 620 (rev 07)
DeviceName: Onboard IGD
Subsystem: Hewlett-Packard Company UHD Graphics 620
Kernel driver in use: i915

Thank you for your help!

enter image description here

Best Answer

  • Have you tried installing the correct drivers to the videocard? Or, alternatively if You already have the correct drivers; have you tried to go to software-updates (I think it's in the terminal called gtk-software-properties) and Checked there if you can choose (at the Drivers tab) some other Drivers?




    I don't know if this will work; but if you're ok with re-installing gnome (As I said above: I am Not sure if this will work, so if unsure I would not try this, mainly because you can still access the desktop, somehow.)

    however If you want to re-install gnome:

    sudo apt-get install ubuntu-gnome-desktop

    Ubuntu boots to black screen with cursor after upgrade (from 18.04 to 20.04)

    The answer from:

    Fuzzy graphics after upgrading to Ubuntu 20.04

    sudo apt purge xserver-xorg-video-intel

    "Reboot and everything is back being normal."


    Related: Why is my monitor glitching out?

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