I have a 27" Mid 2011 iMac with a DisplayPort / Thunderbolt port and want to use my 24" iMac with a DisplayPort as a 2nd monitor. I purchased a displayport cable but am unable to get it to work.
What is the correct best way to use a 2013 iMac as an external display for an M1 MacBook Pro. What cable and setting if any for the iMac is the best approach? I've googled a few solutions which all ...
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