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.

iMac 2020 with iMac Late 2014 as 2nd display

I bought a cable and adapter: Thunderbolt to Thunderbolt cable and a Thunderbolt to USB-C Adapter. The connection point where the adapter and cable come together is warm to the touch but the 2nd display is not working.


I have an iMac 2020 running macOS Monterey v12.0.1 (27") and I'm trying to use my old iMac Late 2014 running macOS Sierra v10.12.6.


Is it possible I have a cable problem? It seems straightforward to hit Cmd-F2 and I've tried re-starting both computers, reconnecting, as well as logging out of the display computer and hitting Cmd-F2 and it's still not working. I'm upset that I spent $84 and I can't get the setup to work!


Both computers have Apple original keyboards and trackpads. Help!

Posted on Nov 8, 2021 1:42 PM

Reply
Question marked as Top-ranking reply

Posted on Nov 8, 2021 1:52 PM

You cannot use a 2020 iMac for Target Display Mode.

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

Similar questions

1 reply

iMac 2020 with iMac Late 2014 as 2nd display

Welcome to Apple Support Community
A forum where Apple customers help each other with their products. Get started with your Apple Account.