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I connected MacBook Pro 14 m1 with iMac 5k retina 27 2017 by thunderbolt4 cable, but it works only from iMac to MacBook. MacBook with smaller monitor as secondary display. Vice versa not working. Any solution?
iMac 27″ 5K, macOS 13.2
Both devices are too new to support the now-deprecated Target Display Mode (TDM). You appear to be using AirPlay to Mac instead which does not require a cable.
For TDM to work, these hardware and macOS limitation must be met:
Airplay to Mac info:
Set up your Mac to be an AirPlay receiver - Apple Support
Hello Rik_ST,
We have some suggested steps to use your iMac as an external display with your MacBook Pro M1. First, be aware that you won't be able to use target display mode with your iMac since it's an unsupported model. Read more here: Use your iMac as a display with target display mode - Apple Support
You can connect your iMac wirelessly with your MacBook Pro M1. We'll use steps from this article: Use one or more external displays with your Mac - Apple Support
Connect the displays wirelessly
You can wirelessly connect your Mac to devices, such as another Mac and certain smart TVs, and use them as displays.
1. Choose Apple menu> System Settings, then click Displays
in the sidebar. (You may need to scroll down.)
2. Click thepop-up menu on the right (below the name of your Mac), then choose your display.
If you have them connected via your cable, try the following steps for when the display isn't detected:
If your Mac doesn’t detect a connected display
1. On your Mac, choose Apple menu
2. Press and hold the Option key, then click the Detect Displays button on the right.
You can also try putting your Mac to sleep and then waking it.
Reply back with any questions.
Take care.
Hi Rik_ST,
You can also check your compatibility settings with the help of the article here: System requirements for Continuity on Mac, iPhone, iPad, and Apple Watch
If your devices and specifications are listed and you still have an issue, reach out to Apple Support directly to further assist.
Contact - Official Apple Support
Contact Apple for support and service - Apple Support
Best.
I see in options iMac as display, but I can not use it as secondary display. I can not drag both screens using option button. Tried to re-log, reboot. I can use mouse and keyboard of my iMac on MacBook, but can not use iMac as secondary display both wirelessly and by cable.
But everything is working from older iMac to newer MacBook m1? how?!
For airplay do I need Apple tv?
how to use iMac 27 2017 as second monitor for MacBook Pro 14 m1?
