I have a Dell Inspiron 5570 (5000 series) and for some obscure reason in my default linux instalation the default keyboard backlight timeout is something like 1 second. Doesn't make any sense, what benefit does a keyboard backlight have if I can only see it in the dark only when I'm already typing?
Took a couple of wrong paths searching for a solution until I found how to manually tweak that value. Keyboard backlights
configuration files are located under
/sys/class/leds and for a Dell laptop the magic file is
There's no option to disable the timeout completely so I've created a systemd service that sets the timeout to 30 minutes
(just an arbitrary large value) each time
graphical.target is reached.
[Unit] Description=Extend keyboard backlight timeout [Service] Type=oneshot ExecStart=/usr/bin/env bash -c "echo 30m > /sys/class/leds/dell::kbd_backlight/stop_timeout" [Install] WantedBy=graphical.target