For a console, server type rigs, it is setterm. Type in man setterm and look for powersave and powerdown modes. Should look something like this:
Code:
setterm -powerdown 10
That should cut off the monitor after 10 minutes of inactivity.
If you use a GUI, then you need to edit your xorg.conf file and add the option
You may then have to either add more options in the conf file or adjust in KDE, if you use KDE.
That help??
edit: My bad typing again. < slaps hand for being bad >