How to disable monitor standby in console?

Solution 1:

To turn off VESA power saving, use the setterm command

setterm -blank 0 -powersave off -powerdown 0
xset s off

Resource

Solution 2:

This is DPMS in action. It will turn your monitor off by default after 10 minutes of inactivity. There is command 'xset' which can help you to disable this behavior. You should install it first if you do not have it already.

Try following

xset -display :0.0 -dpms
xset -display :0.0 s off
xset -display :0.0 s noblank

First one should do the trick. Try other two if first will be not enough.

xset q

should display current settings. By default it will return (amongst other stuff): DMPS is Enabled. After execution of first commands run xset q again to verify it was disabled. Be inactive for 10 minutes to verify that monitor does not go off.