Please try booting a slightly older kernel version. You can do that by selecting it from the Grub menu, which is accessed by tapping Escape before boot starts.
** Tags added: haswell regression-update ** Changed in: xorg (Ubuntu) Importance: Undecided => High ** Package changed: xorg (Ubuntu) => ubuntu ** Changed in: ubuntu Status: New => Incomplete -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1924910 Title: Massive screen flashing artefacts - tearing To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+bug/1924910/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs