How to Change Mac Screen Resolution on Built-in Display

You can use an external monitor on your Mac, but if you want to change the screen resolution of the built-in display, you can do it very simply through System Preferences This operation.

If you are using macOS Big Sur or earlier, some of your resolution options are initially hidden. You need to know the techniques to find them.

To change the screen resolution of the built-in Mac display:

1. Open the System Preferences application.
   
2. Click to display .
   
3. Under Resolution, click the Scaled radio button.
   
4. Choose one of the listed options depending on whether you need more space or larger text.
   
5. After a few seconds, the screen resolution should change to your new settings.
6. If the options are too broad and you're using macOS Big Sur or earlier, you can zoom in by holding down the Option (Alt) key and clicking Zoom again. to access all possible display resolutions.
7. You will see a list of all possible solutions.
   
8. If you also want to see the low-resolution mode option, you can click the "Show low-resolution mode" checkbox.
   
9. Select your resolution and your screen should adjust in a few seconds.

How to change your Mac screen resolution on an external monitor

If you use an external monitor with your Mac, you can change the screen resolution of this monitor independently of the built-in monitor. The resolution options available to you depend on the model of external monitor you are using.

To change your Mac screen resolution on an external monitor:

1. Launch the System Preferences application.
   
2. Click to display .
   
3. On your external monitor, you should see a second display window.
   
4. Click the Scale radio button to see suggested resolution options.
   
5. To see the complete list of possible resolutions, hold Option (Alt) and click Scaled again.
   
6. Select your resolution and your external monitor should change in a few seconds.

How to Revert to Original Screen Resolution on Mac

If you're not happy with your new screen resolution, you should be able to change the resolution back using the method above. However, sometimes you may encounter the problem of the screen turning black.

To revert to the original screen resolution when the screen goes black:

1. When the screen first goes black, wait 15 seconds or press Enter keyRevert to your original settings.
2. If this doesn't work, you need to restart your computer in safe mode. You should then be able to revert to the default screen resolution.
3. To restart in Safe Mode, shut down your Mac.
4. For Intel Mac, restart the computer and hold down the Shift key. When the login window appears, release the Shift key and log in.
5. For Macs with Apple Silicon, press and hold the power button until you see "Startup Options". Select your startup disk, hold down the Shift key and select Continue In Safe Mode.
6. After your Mac boots into safe mode, follow the above method to restore the resolution to the default settings.

How to open apps in low-resolution mode on Mac

If you want to keep the screen resolution the same, but some apps don’t work well at higher resolutions Conveniently, you can set the app to open in low-resolution mode.

This allows you to use the application at a lower resolution than the rest of your Mac display.

To open an app in low-resolution mode on your Mac:

1. Open Finder.
   c
2. Navigate to the location of the app you want to set to low-resolution mode. This is most likely located in the "Applications " folder.
   
3. Right-click the application in Finder.
4. From the context menu, select Get Info.
   
5. In the "Information" window, select "Open in low resolution".
   
6. Now when you launch the app, it will open in low-resolution mode, but the rest of the system will maintain your current resolution.
   

Control your Mac

Once you learn how to change the screen resolution on your Mac, you can set up your computer to be exactly how you want it. There are many other ways you can better control your experience on your Mac.

You can use Mac shortcuts in macOS Monterey and later to automate common actions and save a lot of time. If you're tired of your computer ringing every time you get a call, you can disconnect your iPhone from your Mac.

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