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User profile for user: adamlh58
adamlh58 Author
User level: Level 1
5 points

Secondary monitor

Can I use my mid 2011 iMac as a monitor for my 2020 M1 MacBook Pro?

iMac 27″, macOS 10.13

Posted on Apr 6, 2021 8:18 AM

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User profile for user: rkaufmann87
rkaufmann87
User level: Level 10
141,656 points

Posted on Apr 6, 2021 9:04 AM

For a number of reasons:


  • Macs are computers and are not displays for other devices.
  • M1 based Macs do not support TDM.
  • Big Sur does not support TDM.
  • and likely several others.


You will find it much less expensive, easier to connect and much more reliable to simply buy an external display (they start at about $100) and move forward.

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User profile for user: rkaufmann87
rkaufmann87
User level: Level 10
141,656 points

Apr 6, 2021 9:04 AM in response to adamlh58

For a number of reasons:


  • Macs are computers and are not displays for other devices.
  • M1 based Macs do not support TDM.
  • Big Sur does not support TDM.
  • and likely several others.


You will find it much less expensive, easier to connect and much more reliable to simply buy an external display (they start at about $100) and move forward.

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Secondary monitor

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