Edward, resetting xorg.conf using 'sudo dpkg-reconfigure -phigh xserver- xorg' did the trick for my X41.
-- Screen locks up black on laptop lid close. https://bugs.launchpad.net/bugs/49521 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