Arch Linux

MS1

Member

Registered: 2018-02-02

Posts: 95

Shut off HDMI monitor from tty without any DE

I have an Arch without any DE connected to a monitor and want to know how to turn on and off the signal to it to make it go to sleep. Everything I find from google is needing xrandr or setterm or xset. None of them work due to not finding a display. Is this possible?

$ xset dpms force standby
xset:  unable to open display ""

$ DISPLAY=:0.0 xset dpms force standby
xset:  unable to open display ":0.0"

Trilby

Inspector Parrot

Registered: 2011-11-29

Posts: 30,462

Website

Re: Shut off HDMI monitor from tty without any DE

setterm certainly doesn't require an X display or anything related to xorg.  Though I also am not sure it would meet your needs.

Do you have a /sys/class/cec directory?

Last edited by Trilby (2023-12-22 18:28:23)

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"UNIX is simple and coherent" - Dennis Ritchie; "GNU's Not Unix" - Richard Stallman