HT206587: Using 4K displays and Ultra HD TVs with your Mac
Learn about Using 4K displays and Ultra HD TVs with your Mac
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Jul 25, 2016 12:58 AM in response to ZORDON232by lllaass,What specific monitor do you have and how is it connected?
For my 2003 Mac Pro I had to use a DP 1.2 cable (really cable with mini displayport ends on both ends) and had to change the setting in the monitor (dell 24" 4K) to DP 1.2 in order to get 60Hz @ 4K