I have found that a workaround is to press Ctrl-Alt-F1 for a terminal login, login as root and do:
service lightdm restart This will invoke the graphical login screen, and I can log in as usual. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1313443 Title: Cannot restore HDMI display after regular TV session To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xorg/+bug/1313443/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
