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rapicell

macrumors regular
Mar 20, 2013
248
58
I'm probably wrong, but I'm pretty sure the MacBooks only have hdmi that currently supports 1080p only, but a miniDP to DP should be able to do 4k or at least a high res in general
 

NYMinute

macrumors newbie
Nov 21, 2011
29
11
You bought an adapter that connects to the mini display port and ends in an HDMI port and you need to connect an HDMI cable to it? You need to make sure the adapter and the cable are both either HDMI 2.0, 2.0a or 2.1 standard for 4K at 60 Hz. Older cables and adapters only went up to 1900 x1200.
 

jdogg836

macrumors 6502
Jul 28, 2010
298
219
Oklahoma
You have to have compatible devices all along the signal chain. What MiniDisplayport adapter did you get, what hdmi cable, and what is the display you are connecting it to?
 
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