Hi, I am trying to connect my iMac (27" late 2013 model, macOS 10.15.7) to a MacBook Pro (13" M1, 2020 model, macOS 11.6). I have being using a USB-C to Thunderbolt2 adapter with the proper Thundebolt2 cable. I tried all the possibilities from the troubleshooter but nothing worked so far. Any suggestion or help? Thanks!
iMac 27″, macOS 10.15
ErSardo wrote:
Hi, I am trying to connect my iMac (27" late 2013 model, macOS 10.15.7) to a MacBook Pro (13" M1, 2020 model, macOS 11.6). I have being using a USB-C to Thunderbolt2 adapter with the proper Thundebolt2 cable. I tried all the possibilities from the troubleshooter but nothing worked so far. Any suggestion or help? Thanks!
See if there is anything here:
Original macOS version of late 2013 iMac is Mountain Lion, so you can downgrade your iMac to Mountain lion with following method.
Mmm... I see! I don't think I am going to re-install Mountain Lion since I'm pretty happy with Catalina and the settings I have there. Do you know if it would be possible to install High Sierra on a different partition and boot with that one only for using the target display mode? Maybe link that to an ad-hoc created user it would be fantastic. I was thinking about this solution in order to avoid downgrading the whole system to an older OS. Happy to hear your opinion about this. Thanks in advance!
Hi,
You should make sure that your iMac is using high Sierra or earlier, you can't use target display mode with later versions of macOS.
Hi kaz-k, thank you for your reply. Let me get this right: are you telling me that I have to downgrade my iMac's current OS?
Troubles connecting MacBook Pro to iMac
