[GW-C] Re: turning off Screen Lock in F19 GNOME doesn't work

[D. Hugh Redelmeier]

I forgot to mention another symptom.  Sometimes a warning box would
pop up near the bottom of my screen, and then go away.  I think it
popped up when a screen-save was about to fire, so I didn't see it
very often.  It said:
	Unable to Lock: lock was blocked by an application

Stupidly, the message doesn't say what program is generating this.
Grrr.

I guess it is one of the two competing screen locking facilities 
(ordinary Gnome and Cinnamon).