![]() ![]() ![]() ![]() You can confirm the max value for brightness in a similar way: :/sys/devices/platform/dell-laptop/leds/dell::kbd_backlight # cat max_brightness Go to the /sys/devices/platform/dell-laptop/leds/dell::kbd_backlight directory and cat the file called brightess: :/sys/devices/platform/dell-laptop/leds/dell::kbd_backlight # cat brightness IMPORTANT: This is Dell laptops (if not Dell XPS model) specific. I didn’t take me long to start wondering if there was a way to control keyboard backlight on my Dell XPS 3890 laptop, and of course there is a simple enough solution.
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