Hi,

I've recently installed Kubuntu 20.10 on a new machine. Here is the configuration :

glxinfo | grep "OpenGL version"
OpenGL version string: 4.6 (Compatibility Profile) Mesa 20.3.1 - kisak-mesa PPA

glxinfo | grep "Device"
Device: Mesa Intel(R) UHD Graphics 610 (CFL GT1) (0x3e90)

lsb_release -a
No LSB modules are available.
Distributor ID: Ubuntu
Description: Ubuntu 20.10
Release: 20.10
Codename: groovy

uname -a
Linux neill 5.8.0-33-generic #36-Ubuntu SMP Wed Dec 9 09:14:40 UTC 2020 x86_64 x86_64 x86_64 GNU/Linux

I notice that the screen is becoming corrupted, see photo : https://imgur.com/a/EsINLPo

The corruption moves when I move the mouse. I don't know how to provoke it, it appears to start randomly. It could possibly be linked to that fact that the computer had been left on for at least 24 hours.

I was originally running "OpenGL version string: 4.6 (Compatibility Profile) Mesa 20.2.1" and had the problem. I then updated mesa to try and resolve the issue but it is still present.

Does anyone know what causes this and how I may fix it?

Thanks in advance.

Lee Matthews