Thunderbolt Bridge

I am trying to connect two iMac 27" together but the Thunderbolt Bridge is showing inactive. After I connected the cables and pressed F2 as mentioned on other videos but nothing happens.

iMac 27″, macOS 11.2

Posted on Mar 3, 2021 6:54 PM

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Posted on Mar 3, 2021 9:58 PM

IF either of the computers is running Big Sur, Target Display Mode simply will not work. It has been discontinued 6 years ago and Big Sur was the final nail in the coffin. Return the Thunderbolt cable and use the funds towards buying an external monitor if you need an external display.

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Thunderbolt Bridge

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