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User profile for user: hillel242
hillel242 Author
User level: Level 1
4 points

Trying to set up dual monitor between two IMAC with thunderbolt 2 to thunderbolt 3 cable (adaptor) One iMac unable to detect the other display when pressing Command F2 or Alt F2

Trying to set up dual monitor between two IMAC with thunderbolt 2 to thunderbolt 3 cable (adaptor) One iMac unable to detect the other display when pressing Command F2 or Alt F2


Does anyone know why?

ty


iMac 27" 5K, macOS 10.14

Posted on May 9, 2020 11:14 AM

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User profile for user: BDAqua
BDAqua
User level: Level 10
240,923 points

Posted on May 9, 2020 11:27 AM

Is the Target Mac running 10.13.6 or less?


Target display mode requires macOS High Sierra or earlier on the iMac used as the external display. It does not work with macOS Mojave or later.

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Trying to set up dual monitor between two IMAC with thunderbolt 2 to thunderbolt 3 cable (adaptor) One iMac unable to detect the other display when pressing Command F2 or Alt F2

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