Impossible to unlock
Every keyboard input or mouse movement on the lock screen currently triggers "wrong username or password".
If you get stuck it's possible to unlock through a different TTY or by SSH through the following command: ck-unlock-session Session2
, alternatively
dbus-send --system --print-reply --dest="org.freedesktop.ConsoleKit" /org/freedesktop/ConsoleKit/Session2 org.freedesktop.ConsoleKit.Session.Unlock
, where Session2
may have to be adjusted to according to your system.