It looks like this might be a Panel Self Refresh bug. PSR was disabled in Ubuntu 20.04 but seems to be enabled (sometimes) in newer Ubuntu releases. So please try disabling it by adding a kernel parameter:
i915.enable_psr=0 ** Changed in: linux (Ubuntu) Status: New => Incomplete ** Changed in: mutter (Ubuntu) Status: New => Incomplete -- You received this bug notification because you are a member of Ubuntu Desktop Bugs, which is subscribed to mutter in Ubuntu. https://bugs.launchpad.net/bugs/1937072 Title: [Lenovo Yoga Slim 7 14IIL05] Incomplete screen redraws To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1937072/+subscriptions -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs