Is your M1 MacBook Pro/Air not recognizing the external monitor you want to use as a second Screen? The 4 utmost uncomplicated solutions to solve MacBook M1 not detecting the external display when connected problem.

0:00 Common External Display not connecting problem on Mac
0:30 Solution 1: Change your Dongle
0:49 Solution 2: Use a different HDMI Cable
1:06 Solution 3: Use a Different Port
1:25 Solution 4: Clean the Port

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