I have the same issue on Xubuntu 16.04.1. A workaround for me is to hit Ctrl-Alt-F1 to bring up a tty, login, and run 'sudo service lightdm restart'.
This kills my session, which is annoying, but is faster than a reboot. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1617471 Title: Can't login after lock screen (black screen) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/unity/+bug/1617471/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
