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How to enable DPMS to manage monitor's energy power

Ensure the following line is present in /etc/X11/xorg.conf in order to let GUI handle the blank screen.

Option "DPMS"

How to turn on/off the display from the CLi


  • Enable DPMS
xset +dpms
  • Turn On/Off respectively
xset -display :0 dpms force off
xset -display :0 dpms force on
  • Check the current display status
xset -q


  • List outputs
export DISPLAY=:0
xranrd -q
  • Turn On/Off respectively
xrandr --output DFP-1 --off
xrandr --output DFP-1 --auto


export DISPLAY=:0
vbetool dpms off
vbetool dpms on