But don’t worry – it’s not hard! We’ll show you how to fix your issues with ease. Unfortunately, your Mac won’t tell you what’s going on, so you’ll have to do a bit of diagnosis. When your Mac screen keeps going black, there are several things that can cause it. If your monitor has built-in audio output and the port that it’s connected to allows macOS to send audio to it, you can use the volume keys on the keyboard to control the volume for both the internal speakers as well as the monitor’s own speakers.We’ll tell you why it happens, and how to fix it when your MacBook Pro screen goes black randomly. MonitorControl isn’t just for brightness. This normally doesn’t happen with other displays, so be careful how low you set the brightness. We should warn you that a Mac’s internal display’s brightness can be set to zero where it looks as though the screen is off. When you next tap the brightness keys on your keyboard, the brightness will change for all your displays at the same time. Enable the ‘Change Brightness/Volume for all screens’ option. To fix this, open the app’s preferences and go to the Display tab. Instead, you have to manually switch over to the display you want to change the brightness for. Right now, in its default state, the app doesn’t let you change the brightness for all displays at once.
You will see the macOS display control on the screen. To change the brightness for other displays, simply click the display so that it’s the active one and use the usual brightness keys. To use the brightness keys, make sure the external display is the active one and then tap the brightness keys to increase or decrease the brightness. You can click the app’s menu bar icon and use the slider to change the brightness for the external monitor.
Once you’ve granted the app permission from the System Preferences, it will run in the menu bar. This app is going to work with the brightness keys on your Apple keyboard, but in order to do so, it needs special accessibility permission. Download the app and move it to the Applications folder. To control the brightness of external monitors, you need to install a free app called MonitorControl.
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