MacBook Pro 15 With Touch Bar External Monitor Options and Experiments

 

TLDR;

  • Impossible to get 4K external monitor working at 60Mhz (Only 30Mhz), DisplayPort or HDMI
  • DisplayPort monitors only work when going through Belkin Docking Station (not directly plugged to USBC –> Thunderbolt2 Apple cable –> Belkin Dock –> DisplayPort Little to Big DisplayPort cable
  • 3K (2560×1600) external monitor works at 60Mhz with HDMI only

 

The Experiments and Results

I called Apple Support regarding how to get my new MacBook Pro 15 (with TouchBar, 4MB Video memory, 16GB RAM) to work with external display port monitors. They said that IS NOT supported.  On my older macbook 15 (version before the touchbar) I could drive just one 4K DisplayPort monitor directly from my Thunderbolt2 port at 60Mhz (that does not work at all on new Macbook Pro 15 with touch bar, nothing comes on display).  Apple confirmed this wit this article:

https://support.apple.com/kb/ht204154?viewlocale=en_US

DisplayPort Solution:

USBC –> Belkin Docking Station –> DisplayPort Cable –> 4K* 30Hz

* From some odd reason this only worked when going through Belkin DisplayPort cable that was little connector to big connector.  Not the small Apple Thunderbolt cable.

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USBC –> Belkin Docking Station –> DisplayPort Cable –> 3K* Fails (no video, go figure)

 

* From some odd reason this only worked when going through Belkin DisplayPort cable that was little connector to big connector.  Not the small Apple Thunderbolt cable.

 

HDMI Experiments on New Macbook 15 with Touch Bar

 

USBC –> Apple Dongle Pictured Below –> 4K Monitor 30 Mhz

 

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USBC –> Apple Dongle Pictured Below –> 3K Monitor 60 Mhz

 

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3 Responses to “MacBook Pro 15 With Touch Bar External Monitor Options and Experiments”

  1. Blake Niemyjski Says:

    I have the new MacBook and I’m connecting it to my 3k displays at 60hz no problem with usb-c to display port. You just need to get the right cable that supports 60hz…

  2. MacWinGuy Says:

    Hi Blake, I assume you mean you have the new one with the touch bar? Which graphic option did you select? Not that I think it matters, but Apple Support told me today that would not work. I don’t have a usb-c to display port cable, just the adapter that goes from usb-c to thunderbolt, and then a thunderbolt to the 3k monitor and that definitely does not work. Does apple sell that cable? Third party? can you post a link to that cable?

  3. MacWinGuy Says:

    I also found this article that seems to add a bunch more information. Sounds like apple need to start selling a USB-C to DisplayPort dongle.

    https://9to5mac.com/2016/11/17/macbook-pro-external-display-requirements-4k-5k-adapters/

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