Observing same issue on Ubuntu 16.04 (after upgrading from 14.04 where same problem was appearing).
I consider that this effect is also there if you lock the screen manually. Same workaround works: - (lock screen manually; re-login says "wrong password" - try to login as another user with wrong password - after error, switch back to your user - now login works ** Changed in: gnome-screensaver (Ubuntu) Status: Invalid => New -- You received this bug notification because you are a member of Ubuntu Desktop Bugs, which is subscribed to gnome-screensaver in Ubuntu. https://bugs.launchpad.net/bugs/353356 Title: Gnome screensaver lock always reports "incorrect password" To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gnome-screensaver/+bug/353356/+subscriptions -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs