The latest Monterey 12.3 update which was rolled-out for the release of the Mac Studio and Studio Display has also caused some external displays to stop working. This has been a problem from the release of Monterey and although the 12.1 and 12.2 updates have fixed it for some users, many still don’t work.

However, the external display issues have affected both Intel Macs and the latest M1/M2 Macs running Monterey so it’s not just an issue related to Apple Silicon Macs. If you’re having problems connecting an external monitor to an M1 or M2 Mac, we strongly recommend checking out these workarounds to make dual monitors work with M1 and M2 Macs. Others are experiencing temporary black-outs which come and go, flickering or found that the external display is not recognized at all by their Mac.įor those that have just bought M1 or M2 Macs, the reason is often because the base model M1 and M2 chips do not support more than one external monitor. Some monitors are completely blacked-out in and not even charging the MacBook Pro connected by Thunderbolt cables. The problem has affected all brands of monitor including LG, Dell, BenQ, Asus, Acer and Xiaomi. Many users have found that after upgrading to Monterey from Big Sur, one or more of the external monitors they were using suddenly stopped working with their MacBook Pro and Mac Mini. If you’ve have problems with external monitors not working on your Mac after upgrading to macOS Monterey or after buying an Apple Silicon M1/M2 Mac, here we show you how to get them working again.

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