I can't see anything related to the problem in the log of comment #8. Probably because that log is from the wrong session? I don't see any evidence of suspend+resume there.
Please: 1. Reboot. 2. Suspend, resume, and reproduce the bug again. 3. Reboot again. 4. Run: journalctl -b-1 > prevbootagain.txt and attach the resulting text file here. ** Changed in: linux (Ubuntu) Status: Confirmed => Incomplete ** Changed in: xserver-xorg-video-amdgpu (Ubuntu) Status: New => Incomplete -- You received this bug notification because you are a member of Ubuntu-X, which is subscribed to xserver-xorg-video-amdgpu in Ubuntu. https://bugs.launchpad.net/bugs/1891684 Title: [amdgpu] Screen flickers after resuming from suspend To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1891684/+subscriptions _______________________________________________ Mailing list: https://launchpad.net/~ubuntu-x-swat Post to : ubuntu-x-swat@lists.launchpad.net Unsubscribe : https://launchpad.net/~ubuntu-x-swat More help : https://help.launchpad.net/ListHelp