in addition to disabling dpms, disable also screensaver
what i do:
xset -q this shows dpms is enabled and off=600, screensaver timeout 600 as well) then i start a movie in vlc, and then xset -q shows that dpms is disabled, but screensaver still has timeout 600, even though disable-screensaver=1 in vlcrc
so what i'm asking is make vlc do 'xset s off' when it starts playing a movie.
this is on ubuntu 12.04, i'm using x11 module for the video outpur (using fbdev xorg driver)