You can make a difference in the Apple Support Community!

When you sign up with your Apple Account, you can provide valuable feedback to other community members by upvoting helpful replies and User Tips.

Looks like no one’s replied in a while. To start the conversation again, simply ask a new question.

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

72,698 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.

View in context

iMac 27" Late 2012 Target display mode not working

Similar questions