Macs with pre-installed light sensors can detect the proximate light level and automatically set the display’s brightness intensity appropriately.

Automatically Adjust Brightness According to Ambient Light Solutions on How to Turn off Auto-Brightness on Mac Solution 1. Adjust Brightness for An External Display and Dim Part 3. Solutions on How to Turn off Auto-Brightness on Mac Part 2. Scroll down to discover ways to disable the auto-brightness sensors altogether.Ĭontents: Part 1. Thus, you’ve got brightness-altering keys on how to turn off auto-brightness on Mac tooled up with an Apple keyboard. The intensity hotkeys on a Mac let you tweak an external display’s brightness manufactured by Apple. You can overcome this obstacle manually by toggling off the auto-brightness feature entirely. This makes the display brighter when the surrounding has more light or dimmer when you get into the dark.

But it’s a double-edged sword as this intermittent brightness makes you fly into a rage if it’s disrupting. Mac has a built-in auto-brightness feature that fine-tunes the luminosity of the display and keyboard in tandem with ambient light.

How to turn on macbook air display