Unable to get 4K @ 60 Hz | Macbook Pro 2017

Discussion in 'MacBook Pro' started by rafayshaukat, Oct 17, 2018.

  1. rafayshaukat, Oct 17, 2018
    Last edited: Oct 17, 2018

    rafayshaukat macrumors newbie

    rafayshaukat

    Joined:
    Oct 17, 2018
    #1
    Hello,

    I have been unable to achieve 4K resolution @ 60 Hz. I'm unable to get 60 Hertz refresh rate. The option is greyed out at 30 Hertz. I have the following hardware:
    I have been searching the internet for hours looking for answers and I can't seem to figure out what's wrong. I even read a few Amazon reviews on the cable I'm using and people seem to have 4K @ 60Hz on this same monitor.

    Under System Preferences > Display, this is what I get:
    Screen Shot 2018-10-17 at 3.41.09 PM.png

    What's the problem here? Is it the monitor or the cable I'm using?
     
  2. jrichards1408 macrumors 6502

    Joined:
    Nov 4, 2016
  3. rafayshaukat thread starter macrumors newbie

    rafayshaukat

    Joined:
    Oct 17, 2018
    #3
    Yeah, but I'm talking about the refresh rate. It's greyed out at 30 Hertz which is extremely choppy and quite frankly unusable. I'm trying to get a 60 Hz refresh rate @ 4K resolution.
     
  4. IngerMan macrumors 65816

    IngerMan

    Joined:
    Feb 21, 2011
    Location:
    Michigan
    #4

    Did you try all your ports on mbp?
     
  5. rafayshaukat thread starter macrumors newbie

    rafayshaukat

    Joined:
    Oct 17, 2018
    #5
    Just did. Same results.
     
  6. IngerMan, Oct 17, 2018
    Last edited: Oct 17, 2018

    IngerMan macrumors 65816

    IngerMan

    Joined:
    Feb 21, 2011
    Location:
    Michigan
    #6
  7. Premal212 macrumors regular

    Premal212

    Joined:
    Jan 26, 2017
    Location:
    London UK
    #7
    I had this problem some time ago, it was due to the adaptor being HDMI 1.4 which only supports 4k@30hz. Purchased another adaptor that does HDMI 2.0 which is 4k@60hz. Of course, yours is a different case with display port.

    o I'm not overly sure, potentially the dudes who sent you the cable may be selling you garbage? My only thoughts
     
  8. rafayshaukat thread starter macrumors newbie

    rafayshaukat

    Joined:
    Oct 17, 2018
    #8
    That's what I'm leaning towards as well. I just don't understand what exactly am I doing wrong.
     
  9. Fishrrman macrumors P6

    Fishrrman

    Joined:
    Feb 20, 2009
    #9
    Some (not all) USB-c to displayport cables that work with 2016 MBPs WILL NOT WORK with the 2017/18 MBPs.

    The only way to know is to read the user reviews (and also product ad should specifically state that it's good with the 2017/18 MBPs).
     
  10. Premal212 macrumors regular

    Premal212

    Joined:
    Jan 26, 2017
    Location:
    London UK
    #10
    Yeah just try another adaptor with some better reviews on Amazon. Let us know how you get along
     
  11. Samuelsan2001 macrumors 604

    Joined:
    Oct 24, 2013
    #11
    Sometimes you have to change the settings on the monitor!! Have you done this??
     

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10 October 17, 2018