I'm still experiencing the same bug in edgy. The screen goes blank after 20 minutes while watching a fullscreen movie in totem-xine.
In gnome-power-manager, everything is set to "Never" and in gnome- screen-saver, "Activate screensaver when computer is idle" is unticked (and additionally the slider is set to 120 minutes). In my xorg.conf I only have a Option "DPMS" line, and every power- management related is turned off in the BIOS setup. -- 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