# Ubuntu – Ubuntu 20.4 LTS upgrade graphical glitches

20.04graphics

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!

• 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)

sudo apt purge xserver-xorg-video-intel