At least in slock 0.6, nothing prevents me from killing the Xorg server with control+alt+backspace, returning to an open tty.
Also, I cannot unlock ever: the screen turns black on launching slock, then I type my password and push return. Slock beeps and that's it, no unlocking. I have a fingerprint reader enabled that I use on the gnome side. 'pam' is setup so that sudo does not ask for the finger tip swipe. I fail to see why should pam interfere with slock, but I can't see any other source of inteference other than pam.
Any hints appreciated. Albert
