How to Adjust a Laptop Light
- 1). Turn on your laptop.
- 2). Press and hold the function or "Fn" key on your keyboard.
- 3). Press the up-arrow key on the keyboard to increase the brightness and the down-arrow key to decrease it. Some models may require pressing the ""F5" or "F6" key to decrease the brightness and pressing the "F7" or "F8" key to increase it.
- 1). Make sure your laptop is turned on.
- 2). Press and hold the "Fn" key on your keyboard.
- 3). Press the left-arrow key. This action enables and disables the ambient light sensor on your laptop. This sensor is located along the bottom of the laptop display. Do not cover the sensor or it will set the display backlight to the lowest level.
Adjusting Light Brightness
Ambient Light Adjustment
Source...