Downgrading xserver-xorg-core ...dsfg-12-ubuntu3 to ...dsfg-12ubuntu2 seems to be workaround.
-- Black Bar Across Screen with latest Xorg Update https://bugs.launchpad.net/bugs/137604 You received this bug notification because you are a member of Ubuntu Bugs, which is the bug contact for Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
