As stated in comment #2: As a first point of call you should return the laptop to where you bought it, or contact HP Support about a warranty claim.
-- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1824415 Title: Vertical line screen flickers randomly appears on built-in laptop display only To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1824415/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs