How to get 4K output on 13" rMBP?

Discussion in 'MacBook Pro' started by ozziegn, Mar 5, 2016.

  1. ozziegn macrumors 6502a

    ozziegn

    Joined:
    Aug 16, 2007
    Location:
    Central FL Area
    #1
    Im trying to find a 4K monitor to use as an external display on my 2015 13" rMBP using Thunderbolt. It's my understanding TB is the same as DisplayPort right? If so, I've tried a few 4K monitors at Best Buy buy none of them will do 4K on my laptop.

    What am I doing wrong?
     
  2. CoastalOR macrumors 68000

    CoastalOR

    Joined:
    Jan 19, 2015
    Location:
    Oregon, USA
  3. BenTrovato macrumors 68020

    BenTrovato

    Joined:
    Jun 29, 2012
    Location:
    Canada
    #3
    I'm using 4k on my 13" rMBP. What do you mean by you tried a few monitors but non of them will do 4k on your laptop?
     
  4. ozziegn thread starter macrumors 6502a

    ozziegn

    Joined:
    Aug 16, 2007
    Location:
    Central FL Area
    #4
    I tried to use a DisplayPort to HDMI 2.0 cable which should in theory provide 4K @ 60Hz resolution. But I can only get 1080P resolutions. This was done on a few different model 4K monitors.
     
  5. ozziegn thread starter macrumors 6502a

    ozziegn

    Joined:
    Aug 16, 2007
    Location:
    Central FL Area
    #6
    So basically I am extremely limited to what 4K monitors I can use?
     
  6. AFEPPL macrumors 68030

    AFEPPL

    Joined:
    Sep 30, 2014
    Location:
    England
    #7
    Yep, i have a very expensive panel and i can't get better than the 3840 at 30hz.
     
  7. ozziegn thread starter macrumors 6502a

    ozziegn

    Joined:
    Aug 16, 2007
    Location:
    Central FL Area
    #8
    So my laptop is supposed to be able to power a 4K display @ 60Hz but it really can't???
     
  8. Mr Retina macrumors regular

    Mr Retina

    Joined:
    Jun 5, 2013
    #9
    Dude get a 4k monitor that has display ports/mini display ports on the back. Dont try to use cross cables from thunderbolt-->HDMI..Most of those HDMI cables that say they support 4k, aren't even really HDMI 2.0 Protocol. I have a Dell p2715Q 4k monitor and it works flawlessly with my 2015/15/ retina and my roommates 2015/13/retina. Get a mini display port to display port cable to output 4k/60hz
     
  9. ozziegn, Mar 5, 2016
    Last edited: Mar 5, 2016

    ozziegn thread starter macrumors 6502a

    ozziegn

    Joined:
    Aug 16, 2007
    Location:
    Central FL Area
    #10
    Okay, I just ordered that same monitor. It says the monitor comes with a DP cable (mDP to DP). Will it work or should I order the one below?

    http://www.monoprice.com/product?c_id=102&cp_id=10246&cs_id=1024606&p_id=12001&seq=1&format=2
     
  10. Mr Retina macrumors regular

    Mr Retina

    Joined:
    Jun 5, 2013
    #11

Share This Page