Here: MAC Windows Once youre up on the latest app and speaker software. Click the New Account pop-up menu, then choose a type of user. Click the Add button below the list of users. If the lock at the bottom left is locked , click it to unlock the preference pane. Open Users & Groups preferences for me. Under Sidebar, clear the Show all mail account folders check box.On your Mac, choose Apple menu > System Preferences, then click Users & Groups.Click “Restart … ” and then immediately close your Mac’s lid.Just because a cable looks connected doesn’t mean that it is connected securely. Select the “Apple” log in your Mac’s menu bar. Connect your Mac to the external monitor. Disconnect your adapter for 10 seconds.Some users have also reported positive results by switching their monitor on and off while also removing and reattaching the cable:Finally, if you’re using a MacBook, you can try disconnecting while also closing your Mac: If yes, then this strongly indicates that the problem lies with your external monitor. Test with an alternative monitorIf your monitor is buggy, temperamental, or outright broken, then no amount of adjusting your Mac’s settings is going to fix the problem!If you have access to a second external display, try attaching it to your Mac to see if it works. Try attaching your MacBook to a power outlet to see whether this gives your laptop the juice it needs to power an external monitor.You can also check that the brightness isn’t cranked down on your external display using the Ctrl + F2 keyboard shortcut. Don’t rely on battery powerIf you’re running your MacBook from its internal battery, it may not have enough power to push pixels to an external monitor.Select “Detect Displays” to see whether macOS recognizes the attached display. Press and hold the Option key, and a “Detect Displays” button should appear.4. Navigate to “System Preferences -> Displays.”3. Select the “Apple” logo in your Mac’s menu bar.2. Use macOS’ hidden Detect Displays featureIf macOS doesn’t recognize your external display automatically, you can try to force the connection using macOS’s Detect Displays feature:1.
![]() Try resetting macOS’s SMCThe System Management Controller (SMC) is a chip that controls many of your Mac’s physical components, so resetting SMC can resolve certain display-related issues.1. Hold these keys until macOS restarts, then release them.You’ve now successfully reset your Mac’s NVRAM and can check whether macOS is now playing nicely with your external display. Power up your Mac and immediately press the Option + Command + P + R keys.3. ![]()
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