What worked for me: install XScreenSaver (via `sudo apt install xscreensaver`), then reboot.
Thanks for this workaround from https://askubuntu.com/questions/620709 /blank-screen-after-locking-screen (which has more possible workarounds). My environment: Ubuntu 16.04.3 LTS with Xfce 4.12 on a Dell XPS 15 9560. -- 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
