This is caused by the "intel" xorg driver. Specifying Driver "i810" in xorg.conf solves the problem.
-- laptop does not power off https://bugs.launchpad.net/bugs/250469 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs