I have a new iMac Mini M2 and want to use my old late 2015 27" iMac as the monitor. Not sure how to do this.
On searching Google I am getting many conflicting answers. Some say it's not possible others say you need some adaptor called Luner, not sure what that is.
I do hope I can find the answer in this Apple community.
If it cannot be connected then I suppose i will have to sell it on.
Thanks in advance for your help.
What you are attempting is the now-deprecated Target Display Mode, which does not support either of your newer devices.
The very restrictive limitaions of Mac models and OS versions are laid out in this Apple article:
Use your iMac as a display with target display mode - Apple Support
The third-party solutions may be laggy and/or costly.
In the long run, you will save yourself a LOT of trouble and money by forgetting the iMac and getting a standard external monitor.
The options are many. If you look through other threads in this section of the forums, you will see numerous requests for monitor recommendations. The responses posted will help you find what works for you.
What you are attempting is the now-deprecated Target Display Mode, which does not support either of your newer devices.
The very restrictive limitaions of Mac models and OS versions are laid out in this Apple article:
Use your iMac as a display with target display mode - Apple Support
The third-party solutions may be laggy and/or costly.
In the long run, you will save yourself a LOT of trouble and money by forgetting the iMac and getting a standard external monitor.
The options are many. If you look through other threads in this section of the forums, you will see numerous requests for monitor recommendations. The responses posted will help you find what works for you.
steveduval wrote:
I have a new iMac Mini M2 and want to use my old late 2015 27" iMac as the monitor. Not sure how to do this.
On searching Google I am getting many conflicting answers. Some say it's not possible others say you need some adaptor called Luner, not sure what that is.
That iMac does not support Target Display Mode. Target Display Mode went away when the first 27" 5K Retina iMac came out in Late 2014. Even if you had an iMac which supported TDM, the M2 Mac mini does not support using any iMac as a Target Display.
That iMac is also too old to act as an AirPlay Receiver for AirPlay to Mac.
There is a workaround product called Luna Display, by Astropad, that might let you use that iMac as a second display. This would tie up two ports on your Mac mini – one of your USB4 / Thunderbolt ports for the required "dongle", and another port for a cable connection to your iMac (to help carry video data). Even with that, the connection would not be as good as a first-class hardware connection to a standalone 5K monitor. I think the refresh rate would only be 30 – 45 Hz, and a blog on the Astropad site said that they do not recommend Luna Display for applications involving fast-changing video content (like gaming and video editing).
You'd need a real monitor or TV set to configure the M2 Mac mini to use the Luna Display.
As expressed by the others, you need an external display for the Mac mini.
see > Connect a display to Mac mini - Apple Support
In a pinch, you can use an HDMI TV until you can acquire an external display.
Not possible, unfortunately.
Thanks for your help 👍👍
👍😉
How To Connect M2 Mini to Late 2015 27" iMac
