The post 54 workaround fixed it for me, thanks much @khitschler. (https://bugs.launchpad.net/ubuntu/+source/plasma- desktop/+bug/1849084/comments/54)
Running Ubuntu 18.04.1 with latest stable kernel (5.4.0-42), but this has been a problem since the upgrade from 16.04. Since there are no issues with the workaround, it will remain in place until the upgrade to 20.04. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to 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 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs