There are countless different ways a GPU HANG can occur so let's assume it's a new problem. Please open a new bug by running:
ubuntu-bug linux-image-5.11.0-25-generic -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1924624 Title: After upgrade to kernel 5.8.0-49/50 with Intel Gen7 (Haswell/Ivy Bridge/Bay Trail) graphics a lot of glitches render screen unusable To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1924624/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
