38

I have recently upgraded Ubuntu 19.10 to latest LTS Ubuntu 20.04. After updating, I get serious artifacts on my screen. Every time I reboot (or log-in), my screen is fuzzy or scrambled (picture attached):

fuzzy image

This is temporary. The fuzzy screen goes away when I change the background. But it reappears the moment I reboot or log back in.

I have Intel HD Graphics 520 (Skylake GT2).

The output of lspci -nn |grep -E 'VGA|Display' is:

00:02.0 VGA compatible controller [0300]: Intel Corporation Skylake GT2 [HD Graphics 520] [8086:1916] (rev 07)

Update:

On enabling Wayland in Ubuntu 20.04 and logging in to, these artifacts are however cured.

This is okay for now, but I am not sure about Wayland as I have not yet used it before.

Is there a way to correct the graphic issue with normal Ubuntu startup?

Eliah Kagan
  • 119,640
Tanvir
  • 982

3 Answers3

34

I solved my fuzzy graphics issue which is related to Intel Drivers. A bug is also reported on Intel driver artifacts. Following the answer provided here this command line solved the issue:

sudo apt purge xserver-xorg-video-intel

Reboot and everything is back being normal.

clear window; no fuzzy graphics/artifacts

Eliah Kagan
  • 119,640
Tanvir
  • 982
5

Same problem here with an Intel UHD Graphics 630 (Desktop) after upgrading from 19.10 to 20.04.

Completely solved by deleting a custom Intel Xorg configuration file I had created in the past ― on my setup it was /etc/X11/xorg.conf.d/20-intel.conf, and contained:

Section "Device"
 Identifier "Intel Graphics"
 Driver "Intel"
 Option "AccelMethod" "sna"
 Option "TearFree" "true"
EndSection
BeastOfCaerbannog
  • 16,703
Vanni Totaro
  • 2,083
0

I was having the same problem with ubuntu 20.04 so I updated ubuntu to 21.04 now the problem is solved

just try to update ubuntu to the current newer version it solves the problem

Abhishek Phaltankar
  • 21