Is it possible to turn the display on and off via the command line please?
Failing that, can the display be dimmed via command line?
Thanks.
DISPLAY=:0.0 xset dpms force off should work. It will turn back on again if you touch it, hit a keyboard key or move a mouse.
Or you can use DISPLAY=:0.0 xset dpms force on to turn it back on again.
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Excellent!! My plan its to turn the display on via ssh when motion is detected, and then off again after a set time, all linked into Home Assistant for automation. :)
Thanks!
Hi, I’m coming late to this but the following command does not work for me:
DISPLAY=:0.0 xset dpms force off
I get the following error:
server does not have extension for dpms option
xset: unknown option force
Any suggestions on how to fix this?
I didn’t manage to get this working, but I did find a neat way to control the backlight directly from python.
The rpi-backlight script (https://github.com/linusg/rpi-backlight) works really well for the Hyperpixel and allows python to turn the screen on and off.
You can see an example of this in use here: https://github.com/hankhank10/music-screen-api/blob/master/go_sonos_highres.py
For me I managed to do it with the following commands.
To turn the display off:
sudo echo 0 > /sys/class/backlight/backlight/brightness
To turn the display on:
sudo echo 1 > /sys/class/backlight/backlight/brightness