tried an older kernel. No change. 5.4.0-42-generic
** Attachment added: "screen_corruption.png" https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1911369/+attachment/5452713/+files/screen_corruption.png -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1911369 Title: [radeon] Horizontal lines of screen corruption after last update. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1911369/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
