I have a radeon 5700XT with 2 screens running at 144Hz and have this problem when I wake up my fresh install unbutu out of sleep.
Workaround: For the moment I set the frequency ON BOTH monitor at 60Hz, and I cancel the setting to get back at 144Hz, and it works. If I put only one on my double screen at 60Hz, flickering continue ON BOTH. -- 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: [amdgpu] 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