A similar issue was reported against radeon (bug 1911369) so maybe it's a problem with Mesa 20.2.6.
** Package changed: linux-signed-hwe-5.8 (Ubuntu) => linux-hwe-5.8 (Ubuntu) ** Changed in: linux-hwe-5.8 (Ubuntu) Status: Confirmed => New -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1918619 Title: [i915] Horizontal noise-like screen corruption (Gen9 Kaby Lake) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux-hwe-5.8/+bug/1918619/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs