After upgrade to 20.04.1, problem vanished. (also with k5.4.0-45) So maybe bug was triggered by a backport snafu? Unknown, but after upgrading three systems to 20.04, no more resume crashes. Doesn't help much to find the fault, but maybe a good, 'permanent' workaround.
-- 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/1849084 Title: Freeze on system-resume caused by kwin and amdgpu driver To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/kwin/+bug/1849084/+subscriptions _______________________________________________ Mailing list: https://launchpad.net/~ubuntu-x-swat Post to : [email protected] Unsubscribe : https://launchpad.net/~ubuntu-x-swat More help : https://help.launchpad.net/ListHelp

