Can't disable screen blanking rPI

#Tried adding these to /etc/X11/xinit/xinitrc (http://raspberrypi.stackexchange.com/questions/2059/disable-screen-blanking-in-x-windows-on-raspbian)
xset s off         # don't activate screensaver
xset -dpms         # disable DPMS (Energy Star) features.
xset s noblank     # don't blank the video device

#Tried installing xscreensaver

#Tried adding this to rc.local:
setterm -blank 0