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User profile for user: gavalaar_82
gavalaar_82 Author
User level: Level 1
8 points

I have a MacBook Pro 2017 and a iMac 21.5" mid 2011, I would like to use the old iMac as a 2nd monitor

hi I have a MacBook Pro 2017 and a iMac 21.5" mid 2011, I would like to use the old iMac as a 2nd monitor, it has a thunderbolt socket on the back but i'm unsure if it will work or if its too old to use as a 2nd monitor ie pre mini displayport capable ? I would like to know if this will work using a usb-c - thunderbolt adapter and a thunderbolt male to male lead costing £80..


thanks


[Re-Titled by Moderator]

iMac 21.5", macOS 10.12

Posted on Feb 16, 2020 1:06 PM

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User profile for user: Grant Bennet-Alder
Grant Bennet-Alder
User level: Level 10
133,291 points

Posted on Feb 16, 2020 1:13 PM

This article (now "archived") spells out the conditions and methods of using Target Display Mode.


Use your iMac as a display with target display mode - Apple Support


"Target display mode requires macOS High Sierra or earlier [on the iMac]. It does not work with macOS Mojave or later"

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I have a MacBook Pro 2017 and a iMac 21.5" mid 2011, I would like to use the old iMac as a 2nd monitor

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