apt-get install x11-xserver-utils
edit /etc/xdg/lxsession/LXDE/autostart and add these three lines.
@xset s off
@xset -dpms
@xset s noblank
and
~.xinitrc
xset s off # don’t activate screensaver
xset -dpms # disable DPMS (Energy Star) features.
xset s noblank # don’t blank the video device
or:
sudo vi /etc/kbd/config
BLANK_TIME=0
or:
sudo vi /etc/rc.local
setterm -blank 0
from console:
sudo sh -c „TERM=linux setterm -blank 0 >/dev/tty0