Hi, i have a iMac (Retina 5k, Late 2014, macOS catalina) and Macbook Pro (2020 intel, macOS Monterey).
Is possible the old iMac as target display mode with the macbook pro? Possible if connect with thunderbolt cable + thunderbolt 3 (USB-C) to thunderbolt 2?
Earlier Mac models
Not with Target Display Mode (TDM).
Only a small sub-set of iMacs could be displays for another Mac and your iMac is not among them. Plus the other Mac that is the video SOURCE must be running macOS 10.15 or older, and 2019 or older.
The very restrictive hardware and OS requirements for Target Display Mode are laid out in this Apple article:
Use your iMac as a display with target display mode - Apple Support
Apple begin the deprecation of TDM in Late 2014 and threw the last shovel of dirt in its face in early 2020. As Dr McCoy would have said:
You may be able to connect the with network screen sharing but it will be laggy.
Not with Target Display Mode (TDM).
Only a small sub-set of iMacs could be displays for another Mac and your iMac is not among them. Plus the other Mac that is the video SOURCE must be running macOS 10.15 or older, and 2019 or older.
The very restrictive hardware and OS requirements for Target Display Mode are laid out in this Apple article:
Use your iMac as a display with target display mode - Apple Support
Apple begin the deprecation of TDM in Late 2014 and threw the last shovel of dirt in its face in early 2020. As Dr McCoy would have said:
You may be able to connect the with network screen sharing but it will be laggy.
None of the iMacs with Retina screens could serve as Target Display Mode displays. When the first 27" iMac with a 5K Retina screen came out, that was the beginning of the end for Target Display Mode.
AirServer may suit your purpose. It allows older Macs to act as an AirPlay Receiver. There's a free trial.
iMac target display mode (late 2014)
