To adjust up or down the screen brightness of Macbook laptops, users can use the keyboard shortcuts on the Macbook to adjust, or set automatic brightness, darkness or can also adjust the screen brightness up or down in the System Preferences setting settings.
Adjust up and down the brightness of the MacBook screen
How to Increase or Decrease the Screen Brightness of Macbook Laptop
Method 1: Increase or decrease the screen brightness with keyboard shortcuts
On a MacBook laptop, look up at the top left corner of the keyboard and see the F1 and F2 keys will help you increase or decrease the screen brightness.
If these keys are set to function as a normal F key, then when increasing or decreasing the screen brightness, you must simultaneously press the Fn + F key combination (on Macbook it will be F1, F2; on Mac, it will be F14, F15) to increase or decrease the screen brightness.
Method 2: Increase or decrease the screen brightness in the settings
To adjust it this way, click Apple Menu -> select System Preferences. Next, click the Display icon in the System Preferences window. Then make adjustments up and down the brightness through customizing Brightness.
Method 3: Automatically increase or decrease the screen brightness according to the actual environment
In this way, users can rely on the built-in light sensor on Macbook to detect and monitor ambient light and Macbook will automatically adjust the screen brightness to best suit.
Accordingly, Macbook will automatically adjust to increase brightness when the outside environment has a lot of light, and automatically switch to a darker screen (reduce brightness) when the outside environment is dark.
To set it up, go to Apple Menu -> Select System Preferences as depicted in the image below.
Next, select Display. Then, tick Automatically adjust brightness for Macbook to use the light sensor feature and automatically adjust up and down the brightness according to the surrounding environment.
If you no longer use this feature, do the same as above -> and then untick Automatically adjust brightness .
Note: When you choose to turn off the automatic screen brightness, the Macbook screen brightness will still automatically increase or decrease when you plug in or unplug the battery, so you should note this.
Above are some good ways to help you quickly increase or decrease the brightness of the Macbook laptop screen as you like or you set up automatic brightness adjustment to suit the outside environment.
If you are interested and need to know more about how to