Unable to unlock screen if QuickTime was the last app open in fullscreen view I noticed that if I leave QuickTime open in fullscreen and then my screen is locked, I have no way to unlock it:


Screen is completely black but for the mouse cursor.
I can move the mouse across the screen and the attached external monitor.
Both the external keyboard and the laptop one have no other effect than to make the system beep by each keystroke.


Is there a better way than to force power off the machine to unlock it?
command+option+esc, than force quit QT Player