There was a recent fix to Ubuntu 16.04 "Xenial Xerus" for some AMD VGA outputs. Does this issue still occur with the latest Xenial 4.4.0-45.66 kernel?
** Changed in: unity (Ubuntu) Status: New => Incomplete -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1577701 Title: Cannot use external monitor To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/unity/+bug/1577701/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs