It appears you still have the unsupported 'oibaf' PPA installed which has modified your graphics packages. So to continue please either uninstall that PPA using the 'ppa-purge' tool, or reinstall Ubuntu.
When done, please open a new bug by running: ubuntu-bug mutter ** Changed in: linux (Ubuntu) Status: Incomplete => Won't Fix ** Changed in: mutter (Ubuntu) Status: Incomplete => Won't Fix -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1891470 Title: [amdgpu] White screen on resume from suspend To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1891470/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs