I installed Ubuntu for the first time 3 weeks ago and I really love it. I have Ubuntu 12.04. My only problem is that when screen saver is on, it just shows blank screen, and not turning off the monitor, so my monitor is always on.
I have Samsung E2220 - 22". I looked over the web and I found this command:
sudo xset dpms force off
This command shuts down my screen so I don't see a reason why the screen saver can't shut it down.
Thanks a lot! Elad