I haven't been able to find this anywhere, either on the forums or through Google.
I'm currently using Ubuntu GNOME 13.04 with GNOME 3.8.2.
I have set the following within the Settings area:
- Automatic Screen Lock: On
- Lock Screen After Blank For: Screen Turns Off
- Lock Screen On Suspend: On
- Dim Screen When Inactive: On
- Blank Screen: 10 Minutes
With these settings on, the screen blanks like I would expect it to.
50% of the time, when I move the mouse, the lock screen appears. I slide it up and I can enter my password. Yay!
50% of the time, when I move the mouse, I get a blank black screen. I can't do anything. I see nothing. I can't reboot, I can't enter a password. The only way I can get out of this is to TTY into another session and do a sudo reboot command.
So, the question is...is there a bug somewhere? Or is this a problem with my specific setup? As mentioned, I can't find anything.
P.S. I installed XScreensaver and I'm using that in the meantime, as that works just fine.