Not sure if I have the same issue, but if I let my system go to sleep/suspend at the login screen, when I resume I cannot click in the password prompt and thus cannot type my password to login. For some reason the mouse will not give the password prompt text box focus.
It will give the password prompt text box focus if I first select another option from the user drop down list such as "Other..." or any other user, and then select my user again. Suddenly I can enter my password. Maybe this workaround might work for you as well. Like I said, your issue may be different. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1743423 Title: frozen login window' unable to login; must reboot' cursor moves no mouse clicks To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/lightdm/+bug/1743423/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs