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I want my keyboard backlight to be generally disabled and glow only when I do a manual Fn-key toggle.

The problem is that I can not find a way to edit the files - trigger and start_triggers in /sys/devices/platform/dell-laptop/leds/dell::kbd_backlight

I can edit the brightness and stop_timeout by using

echo ... | sudo tee ...

but not these.

The laptop is Dell XPS 2015 Developer Edition FHD.

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You can change the keyboard backlight brightness using Alt+F10 (of Fn+Alt+F10, if Fn is inverted). In particular, you can set brightness to zero :)

If you need to change the timeout for backlight automatically to switch off, use the file

/sys/devices/platform/dell-laptop/leds/dell::kbd_backlight/stop_timeout
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  • I am already doing it. But, it gets on again after certain triggers - typing after some hiatus, resume, unlock etc.. As asked, I want to disable these triggers.
    – Sudhanshu
    Jun 29 '16 at 8:27

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