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How do I connect these two iMacs together to use the mid-2011 iMac as a second display for my new 2019 27" iMac? I have tried connecting a Thunderbolt cable to the new Thunderbolt to USB-C apple adapter, but the 2011 display does not show up. thoughts? Thanks.
iMac 27", macOS 10.13
Here are a couple very good support documents on the subject:
Use your iMac as a display with target display mode - Apple Support
Here are a couple very good support documents on the subject:
Use your iMac as a display with target display mode - Apple Support
Thank you. I put the old iMac to sleep a couple times, then presses and held Command F2 for a couple seconds. That worked.
You're welcome.
Glad to know you've found your solution. Thank you for letting us know. :)
Use mid 2011 27" iMac as second display for 2019 iMac
