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.
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.