If the problem occurs in Wayland and also after uninstalling the old driver, then it sounds like either a kernel bug or a hardware connection problem.
It looks like this is a desktop but with a laptop screen. Is that right? ** Package changed: xserver-xorg-video-intel (Ubuntu) => linux-hwe-5.11 (Ubuntu) ** Summary changed: - I am having a wierd display glitch + [Sandy Bridge] Flickering white lines on screen -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1964916 Title: [Sandy Bridge] Flickering white lines on screen To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux-hwe-5.11/+bug/1964916/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
