Display Power Management Signaling

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DPMS (Display Power Management Signaling) is a technology that allows power saving behaviour of monitors when the computer is not in use.

Setting up DPMS in X

Add the following to your /etc/X11/xorg.conf in the Monitor section:

Option "DPMS" "true"

Add the following to the ServerLayout section, change the times (in minutes) as necessary:

Option "StandbyTime" "10"
Option "SuspendTime" "20"
Option "OffTime" "30"