Using an iMac as a Monitor Is More Complicated Than You Might Think
How to Integrate M1 Mac mini with Target Display Mode Thunderbolt Displays (Up to 3 Displays!) | MacRumors Forums
Incase anyone ever needs the answer…I have a 27” 2010 iMac working in Target Display Mode with a M1 MacBook Pro using a miniDP to USB C adaptor that's capable of 4k60Hz.
iMac als externen Monitor verwenden - Target Display Mode
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Mac-Tipp: Einen iMac als externen Monitor verwenden | News | MacTechNews.de