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PeterW2 Author

Level 1

4 points

2020 Mac Mini M1, late 2013 iMac 27 inch running high sierra, using all able cables and adapters, can't get Target Display Mode to work at all. Help. Thanks

Mac mini, macOS 11.0

Posted on Dec 29, 2020 5:31 PM

Top-ranking reply

BDAqua

Level 10

244,817 points

Posted on Dec 29, 2020 6:44 PM

According to Apple it won't work...

You can connect any of these older iMac models to another Mac from 2019 or earlier for use as an external display. Learn how to identify your iMac model.

27-inch iMac models introduced in 2009 and 2010: Use a Mini DisplayPort cable to connect your iMac to a Mini DisplayPort or Thunderbolt or Thunderbolt 2 port on the other Mac.
All iMac models introduced in 2011, 2012, 2013, and mid 2014: Use a Thunderbolt cable to connect your iMac to a Thunderbolt or Thunderbolt 2 port on the other Mac. If the other Mac uses Thunderbolt 3, you can use the Apple Thunderbolt 3 (USB-C) to Thunderbolt 2 Adapter with your cable.

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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2020 Mac Mini M1, late 2013 iMac 27 inch running high sierra, using all able cables and adapters, can't get Target Display Mode to work at all. Help. Thanks

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