I've experienced a similar issue on boot, with a Ryzen 7 3800x and a 5700xt on GNOME 3.36.2.
It may be related to a new error message when booting: amdgpu: [powerplay] failed to send message: NumOfDisplays (64) $param:0x00000003 response But, contrarily, my flickering issue can be corrected by readjusting the resolution from 1440p to 1080 and back again. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1874588 Title: Flickering screen after waking up from Suspend To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1874588/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
