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

Target Display mode

Hi, I'm using my iMac (mid 2011) with a thunderbolt cable to my macbook air 2015, I hit command F2 and nothing happens. Not sure what has gone wrong

Posted on May 23, 2020 8:23 PM

Reply
Question marked as Best reply

Posted on May 24, 2020 9:23 AM

Hi,


Target display mode requires macOS High Sierra or earlier on the iMac used as the external display. It does not work with macOS Mojave or later.


I presume that is so?

Similar questions

2 replies
Question marked as Best reply

May 24, 2020 9:23 AM in response to allyggg

Hi,


Target display mode requires macOS High Sierra or earlier on the iMac used as the external display. It does not work with macOS Mojave or later.


I presume that is so?

Jun 4, 2020 1:11 PM in response to allyggg

I had similar problem - CMD F2 was doing absolutely nothing.


I solved it by resetting SMC on the iMac - do do this, shut down, remove power cord for 15 secs, plug power cord back in, wait 5 secs and then switch on.


I have iMac late 2012 with latest Catalina and 2020 MBP


However, annoyingly, I can't get it to work with my Dell XPS which is giving a Thunderbolt compatibility warning message - and it's the XPS I really want to use it for!

Target Display mode

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