Your MacBook does not know better than you. Apple's macOS has an infuriating habit of automatically changing the computer's screen brightness level, seemingly at random. No, it's not all in your head.

In this guide we’ll show you how to quickly enable, or disable, auto brightness on MacBook Pro and MacBook Air. We’ll also show you how to manually adjust your screen’s brightness if you turn auto ...

When you use your Mac connected to an Apple display or an LG UltraFine (which is officially supported by Apple), changing the brightness of the external display is just as easy as doing it on your Mac ...