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):
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 : Intel Corporation Skylake GT2 [HD Graphics 520] [8086:1916] (rev 07)
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?