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AntonBrekhov Author

Level 1

4 points

iMac 27" Late 2012 Target display mode not working

I have iMac 27" Late 2012. I'm trying to access target display mode while connecting by HDMI from video source but nothing happens when I use command + f2.

iMac 27″, macOS 10.14

Posted on Aug 17, 2020 6:13 AM

Top-ranking reply

Allan Jones

Level 9

72,380 points

Posted on Aug 17, 2020 7:47 AM

An iMac used as a second monitor must be running no higher macOS version than 10.13. From your equipment line, yours appears to have 10.14.

Here it Apple information and requirements for Target Display Mode:

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

Note Apple have archived that article.

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iMac 27" Late 2012 Target display mode not working

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