I'm running Ubuntu 13.10 64bit and the Unity desktop environment. I have my screen lock settings configured so it will blank the screen after 5 min. and lock it imediatly. The problem is it doesn't! Nothing happens and the screen remains on.
I checked gnome-screensaver is running and it is! And it works if i press Ctrl-L. But it doesn't work on timeout...
Any ideas on how i can fix this? Or at least debug the issue so i can find a cause?
Thanks in advance.