Exactly the same problem for me. I own an HP Elitebook Folio 9470m with the Intel HD 4000. I'm running Ubuntu 13.10 and I have recently updated the Intel drivers using their installer.
-- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1177358 Title: black line garbage flickers onto screen every few minutes To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xserver-xorg-video-intel/+bug/1177358/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
