Issue with connecting my second monitor to my iMac

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Level 1

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Issue with connecting my second monitor to my iMac

I have tried everything with the directions above and my monitors still are not connecting. HELP!!!! I can't get them to connect as a 2nd monitor

[Re-Titled by Moderator]

iMac 21.5″, macOS 10.15

Posted on Apr 5, 2022 11:47 AM

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Answer 1

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hcsitas

Level 6

12,728 points

Apr 6, 2022 10:23 AM in response to tarathiel

Not supported unfortunately:

”The iMac used as a display must have macOS High Sierra or earlier installed.
The other Mac that you're connecting it to must have been introduced in 2019 or earlier and have macOS Catalina or earlier installed.

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Answer 2

tarathiel Author

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Apr 6, 2022 11:05 AM in response to hcsitas

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Answer 3

hcsitas

Level 6

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Apr 5, 2022 12:23 PM in response to tarathiel

Details please. What monitors are you trying to connect and to what?

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Answer 4

tarathiel Author

Level 1

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Apr 5, 2022 12:26 PM in response to hcsitas

Trying to connect an iMac with a MacBook with a Thunderbolt adapter

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Answer 5

hcsitas

Level 6

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Apr 5, 2022 12:27 PM in response to tarathiel

What years and what operating systems both?

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Answer 6

tarathiel Author

Level 1

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Apr 6, 2022 8:49 AM in response to hcsitas

iMac (21.5 inch, Late 2013) Catalina version 10.15.7

MacBook Pro (16 inch, 2021) Monterey version 12.3

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Answer 7

tarathiel Author

Level 1

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Apr 6, 2022 11:07 AM in response to hcsitas

Shouldn't it work then? If I'm using the iMac as the display it has Catalina which is earlier than High Sierra and the MacBook is a 2021 and has Monterey???

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