


There are plenty of settings options available too, and. You can also use the menu bar item to adjust display brightness on any of the external screens by sliding the dial to where you want it to be. Have any thoughts on this? Let us know down below in the comments or carry the discussion over to our Twitter or Facebook. Thus, to turn brightness up or down on an external screen, focus your mouse cursor onto that screen, then press the keyboard brightness buttons. Once you’ve done this, you’ll need to manually adjust brightness.

(Image credit: iMore) Click Scaled if the Resolution is set to Default for display. Select System Preferences, then click Displays. In theory, an adjustment like this should make your screen time more enjoyable. To change the refresh rate, click on the Apple icon at the top left of the display. The ambient sensor can adjust the MacBook’s screen brightness levels on its own, based on the surrounding light. In reality, it’s an Apple-approved feature called ambient light sensors. Some MacBook devices tend to change the screen brightness levels on their own, and many owners find that both annoying and strenuous to their eyes.
