I also wonder if this might be another HP BIOS bug like bug 1906086... Please try changing your BIOS mode to legacy BIOS (or to UEFI if it's already legacy). But be warned; you may need to reinstall Ubuntu in order to boot again after changing the setting.
-- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1939173 Title: [HP 120-1100eo API] Screen flickering white vertical lines To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/mutter/+bug/1939173/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
