On Fedora 20 alpha, when I try to lock the screen (with dconf screensaver idle-timeout disabled), I am not prompted for a password to unlock.
same here. This is on a Fedora 19 system upgraded to Fedora 20 alpha with fedup. This is a critical security flaw please increase the priority.
I did a clean install and the screen lock functions fine. I assume that this must be an issue with fedup - the OP didn't say how they had installed.
I did a fedup from F19 and my screen doesn't lock. The screensaver kicks in, but when I wake it up, it just goes directly back to the desktop without asking for my password.
There is more info in bug 1013721 so I'll close this as a duplicate of it. *** This bug has been marked as a duplicate of bug 1013721 ***