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Why is my Apple monitor not working with my MacBook Air?

I am not able to get my beautiful Apple monitor to work with my new MacBook Air 2024. Sometimes, it works for one hour, and other times, it does not work at all.


[Re-Titled by Moderator]

MacBook Air 15″, macOS 14.6

Posted on Aug 16, 2024 8:29 AM

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5 replies

Aug 20, 2024 5:59 PM in response to kimfromsan diego

Since it sometimes "works for one hour", that suggests you have the right adapter.


I've read that newer versions of macOS are picky about transmission errors – as in, they don't want to see any, and will cut resolution or cut the signal if they detect errors. Maybe the "hydra" cable on your Thunderbolt Display is a bit flaky – not enough to keep it from working (after a fashion) with the old Mac, but enough to make the new Mac want to cut the signal.


You could try getting a Thunderbolt 1/2 cable (Mini DisplayPort connectors, but higher-quality cable) and running it from the TB2 side of the Apple TB3-to-2 adapter to the TB daisy-chaining port on the Thunderbolt Display. Maybe bypassing the "hydra" cable (and leaving it unused) would be a workaround for the problem.

Why is my Apple monitor not working with my MacBook Air?

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