Lockscreen bypass?

[Guy Harris]

>The one annoying feature of it which I've found is that when no one is
>logged in, you have to press an echoing key before the display resumes. 
>(Entering your userid to start your login works, of course.) When
>you're logged in, you can press *any* key (such as Shift) and the
>display will resume. 

Actually, it's not a question of "logged in" vs. "not logged in", it's a
question of whether a window system is running or not, but since most
people fire up a window system once they log in (there are probably some
who are masochistic enough to run directly on the console "tty", I
suspect), the net effect is usually what you describe.