If you’re running your MacBook from its internal battery, it may not have enough power to push pixels to an external monitor. If you’re experiencing issues with an external display, then it’s always worth detaching your cable and adapter and then re-attaching them firmly. Even a slightly loose connection can prevent your Mac from recognizing the attached display. Just because a cable looks connected doesn’t mean that it is connected securely. Click “Restart … ” and then immediately close your Mac’s lid.Select the “Apple” log in your Mac’s menu bar.
Some users have also reported positive results by switching their monitor on and off while also removing and reattaching the cable:įinally, if you’re using a MacBook, you can try disconnecting while also closing your Mac:
