how to use imac as second monitor for macbook

There are certain prerequisites and system requirements that must be met so that the iMac can be used as an (external) monitor on a Mac, Mac mini or MacBook. Sir Apfelot recommendation: Clean up your Mac hard drive with CleanMyMac Using the iMac as a monitor - requirements How to do this and what requirements must be met, you will read in the following. Because not only the Mac mini, but also the MacBook Pro / Air can theoretically be coupled with the iMac via screen synchronization for extended display. Since this question is also interesting for other Apple users, I have prepared the relevant information as a contribution. Rudolf from Switzerland asked me if he could use his 10 year old iMac as a monitor for one Mac mini 2018 he intends to buy. 9 Apple iMac as a Monitor - Questions and Answers on the Subject.8 Answer to Rudolf's question - Yes, it should work!.7 Update /XNUMX/XNUMX: Use the iMac as a PC display?.6 Troubleshooting - If it doesn't work right away.5 Activate screen synchronization mode - Here's how.4 Warning: some USB-C to DisplayPort cables do not work.3 Update /XNUMX/XNUMX: Mini-DP to USB-C solution.2 Old Apple iMac as a screen extension - cable.1 Using the iMac as a monitor - requirements.

How to use imac as second monitor for macbook