Ubuntu 20.4 LTS upgrade graphical glitches

Question

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.

Edit

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!

Please [edit] your question and add output of lspci -k | grep -EA3 'VGA|3D|Display' terminal command. — Pilot6, Oct 04 '20 at 16:54

William Martens · Accepted Answer · 2020-10-08T18:12:40.733

2

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?

related:

https://unix.stackexchange.com/questions/612018/ubuntu-20-04-problems-with-interface-after-installation

Edit:

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."

Edit2:

Related: Why is my monitor glitching out?

edited Oct 08 '20 at 18:12

answered Oct 04 '20 at 17:15

William Martens

1,003

1

Thank you! A comment in the related link led me to the answer. If you want to edit your answer accordingly, I'll accept it, otherwise I'll accept mine below in a few days. – Snow bunting Oct 04 '20 at 20:38
@Snowbunting Yeah sure, of course I will edit, can you provide me the exact comment? – William Martens Oct 04 '20 at 20:41
@Snowbunting I maybe misunderstood; Did you mean I shall edit my answer from your answer? (The sudo apt-get install ubuntu-gnome-desktop ) (Sorry I am new to this) Thanks, again! – William Martens Oct 04 '20 at 20:44
1

I meant if you include my answer, I'll accept yours and give you the points ;) – Snow bunting Oct 04 '20 at 20:53
Oh - right Thanks, I'm as said still new, but thanks for having patience, Best wishes. – William Martens Oct 04 '20 at 20:54

score 2 · Answer 2 · answered Oct 04 '20 at 20:36

2

This has been solved another question.

sudo apt purge xserver-xorg-video-intel

followed by a reboot and everything is back to normal.

answered Oct 04 '20 at 20:36

Snow bunting

163
1
8

Ubuntu 20.4 LTS upgrade graphical glitches

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