Ubuntu
xserver-xorg-video-amdgpu package

  1. Bug #1882525
  2. Comment #10

Comment 10 for bug 1882525

Revision history for this message
Thomas Szymczak (tszymczak) wrote :

I've discovered some useful info about this bug. First, there's a forum thread about it with lots of good info: https://ubuntu-mate.community/t/20-04-display-issues-with-amd-gpu/21648/37

Second, a new workaround. To recap, the first workaround I found was booting with nomodeset, but that disables all hardware acceleration. The new workaround, as detailed in the forum thread, is to open MATE Tweak, and in the Windows tab, change the window manager to Marco (no compositor).

Third, we found the upstream bug in xf86-video-amdgpu: https://gitlab.freedesktop.org/xorg/driver/xf86-video-amdgpu/-/issues/10 . I believe this is packaged as xserver-xorg-video-amdgpu in Ubuntu. It's been fixed upstream and the Ubuntu Mate devs will include it in 20.04.1 is possible.

Fourth, bug #1873895 appears to be the same bug, but originally reported as manifesting in Xubuntu. Maybe this is a duplicate.