This is happening for me not just when playing video, but if I just leave my laptop. If have the screensaver to come on after 5 minutes, which it does, then at about 10 minutes, the screen just turns off. Possibly something to do with XGL as well.
-- monitor goes to standby when playing a movie in totem fullscreen https://launchpad.net/bugs/30969 -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs
