xset:tldr:72f6c

The command "xset -dpms" is used to disable the DPMS (Display Power Management Signaling) feature on an X server.

DPMS is a power-saving feature that allows the X server to control the power state of the display devices. It can be used to turn off the monitor or put it into a low-power mode when it is not in use, thereby conserving energy and extending the lifespan of the monitor.

By running the "xset -dpms" command, you are instructing the X server to disable this power-saving feature. As a result, the monitor will continue to remain on and will not enter any power-saving mode, regardless of whether it is being actively used or not.

It is worth noting that this command needs to be run with root privileges or by a user with appropriate permissions to modify the X server settings.