Fix, Replace, Repair, Install your Replacement Dell 3340 (Backlit) Laptop Keyboard.

IMPORANT: you need to do it as root user. Dell Latitude 3340 (Backlit) Laptop Keyboard Installation Video Guide. For example, Dell on Windows 10 offers keyboard backlighting settings. If you just echo the numeric value you want, it will immediately apply it to your laptop’s keyboard. To check if your laptop has a backlit keyboard, go to the support page on the. 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. The backlit keyboard is a convenient illumination system that provides a soft light allowing you to work in an otherwise dark setting.

Dell keyboard backlight settings