iMac 2020 Crash with Second Monitor

Why does my 2020 iMac frequently crash and randomly shut-down when using a second monitor, in my case, an older Thunderbolt Display?

Posted on Aug 3, 2022 10:41 AM

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den.thed

Level 10

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Posted on Aug 3, 2022 10:46 AM

Sounds like the old display maybe bad or has a bad cable harness.

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1 reply

Top-ranking reply

den.thed

Level 10

88,792 points

Aug 3, 2022 10:46 AM in response to PDX56

Sounds like the old display maybe bad or has a bad cable harness.

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iMac 2020 Crash with Second Monitor

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