FYI: A picture, or (link to) short video may also help. Yes your description reminds me of issues I experienced with Lubuntu 18.04.5 (radeon too, using HWE kernel, but issues didn't exist using GA kernel including when updated to 18.04.5), but without photograph/video evidence, it could be something different you're describing.
-- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1917101 Title: Booting into desktop results in flickering (also when I logout from the session or log in to the session) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux-hwe-5.4/+bug/1917101/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs