Become a MacRumors Supporter for $50/year with no ads, ability to filter front page stories, and private forums.

inhalexhale1

macrumors 65816
Original poster
Jul 17, 2011
1,101
745
PA
So using the HDMI port will not give 60Hz with a 4K display, but using the thunderbolt port will.

If the display has an HDMI 2.0 input, which supports 60Hz, would a thunderbolt to HDMI 2.0 adapter/cable work? Any out there you guys recommend?
 
Last edited:

argentum47

macrumors regular
Jun 18, 2014
209
488
If the display has HDMI 2.0 it will also likely have a DP port and you can use a miniDP to DP cable which will be significantly cheaper (due to DP being around for much longer than HDMI 2.0).
 

mango316

macrumors regular
Sep 13, 2014
204
311
So using the HDMI port will not give 60Hz with a 4K display, but using the thunderbolt port will.

If the display has an HDMI 2.0 input, which supports 60Hz, would a thunderbolt to HDMI 2.0 adapter/cable work? Any out there you guys recommend?

Here another one to get:

https://www.amazon.com/Club3D-Mini-...=UTF8&qid=1472779794&sr=1-1&keywords=cac-1170

I have this and working great for me on mine mbp 15" 2015 w/o AMD and mbp 13" 2015 connecting to my samsung 4k tv through its hdmi 2.0 port
 

inhalexhale1

macrumors 65816
Original poster
Jul 17, 2011
1,101
745
PA
I'm running into some issues, maybe you guys can help.

OSX is recognizing the Samsung TV (55KU6300) as 7680 x 4050. Under scaled options, the correct resolution is not listed 3840x2160. If I launch an app like Display Menu, I can select the correct resolution.

I tried launching a game to see if the same thing would happen, and one game saw the TV as 4096x2160, and another recognized it correctly as 3840x2160. This happened even when using the Display Menu app and manually picking 3840x2160.

Any thoughts?
 
Register on MacRumors! This sidebar will go away, and you'll see fewer ads.