I already figured out that brightnessctl set 0 “turns off” the display (yes, I know the other numbers between 1 and 255 change the brightness)…
but is something like that also possible for my single-color built-in keyboard light?
Oops… I think I misunderstood something with the order on CrowdSupply.
Didn’t know I have RGB keyboard backlight.
A command for it would be nice… I need it for automation and remote.
Is it this “echo something to a Device” from other topics here?
Thank you for the answer.
I’m more the change to tty person.
My Idea would be to change the color to red when I switch to root. Or send periodically request to monitoring server and blink red when a new problem pops up.