Multiple display/Extended desktop

[EdamBell]

Hi everyone

This is my first post, so sorry if this has been asked before or if I've done something wrong, I've never used a forum before!

I am trying to use my iMac(mid 2010-macOS Sierra) as a second display for my MacBook Pro retina (Late 2012-macOS Sierra) but can't get it to work. I have gone into display settings but the tab for displays is not there, I have then pressed the option key to reveal the displays button, but when I click on it, it does nothing. I have them connect via the HDMI from my MacBook into the mini display port on the iMac, is this right?

Thank you

 

[Lufbrarunner]

I think you will need a mini display port to mini display port cable rather than HDMI to mini display port.

 

[EdamBell]

What a pain! I've just bought that as well haha. I assumed it would work as the MacBook is just HDMI out and there is only one input for the iMac which is the mini display one. Looks like its back to Amazon for a different cable! Thanks for the reply

 

[Cory Cooper]

Hello and welcome.

Target Display Mode only works with the 27" model of the iMac (Mid 2010). Lufbrarunner is correct - you need a Mini DisplayPort to Mini Display Port cable...it doesn't work via HDMI. Here are the requirements:

Use your iMac as a display with Target Display Mode

Hope that helps,

C