![]() ![]() IMPORANT: you need to do it as root user. Dell keyboard backlight files/properties are located in /sys/class/leds/dell:kbdbacklight in which file named brightness has integer value which determine. If you just echo the numeric value you want, it will immediately apply it to your laptop’s keyboard. To Turn On / Turn Off or To Fix Backlit Keyboard on Dell Laptops Try these methods:Method 1: First of all, locate the key with the ‘keyboard illumination ic. ![]() But unlike Apple MacBook Pro, there is no sensor that can automatically turn on the backlit keyboard in dim light. ![]() You can confirm the max value for brightness in a similar way: :/sys/devices/platform/dell-laptop/leds/dell::kbd_backlight # cat max_brightness DELL offers a backlit keyboard in its Laptop/Notebook which is an optional feature. 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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