LG UltraFine 5k Display with MacBook Pro (Late 2016) lags and stutters?!

Discussion in 'Mac Accessories' started by w-f, Jan 25, 2017.

  1. w-f macrumors newbie

    Joined:
    Jan 25, 2017
    #1
    Hi guys,

    I am operating the new LG UltraFine 5k Display on a MacBook Pro (13-inch, Late 2016, Four Thunderbolt 3 Ports) with:

    2,9 GHz Intel Core i5
    16 GB 2133 MHz LPDDR3
    Intel Iris Graphics 550 1536 MB


    I am experiencing slow "reactions", stutters, some (mouse, window animation) lags.
    Attached you find my display settings.

    Is anybody also experiencing the same behaviour with their LG UltraFine 5k? The MacOS just does not feel very responsive when the Macbook is plugged in to the LG...

    Right now I am super unhappy with it :( I am thinking to switch back to my Apple Thunderbolt Display - where at least everything is very responsive and the display does not slow down the whole system.

    Looking forward to any input, tipps and feedback from you guys!

    Best,
    Florian
     

    Attached Files:

  2. pookitoo macrumors regular

    pookitoo

    Joined:
    Apr 16, 2015
    Location:
    Paris
    #2
    I've read in some other post that you can test with the Belkin thunderbolt cable, or put in the native resolution, in extended display (not the mirroring)

    ps: I'm waiting to receive the 5K LG in 2 days, I 've the 13 inch MacBook Pro 2016 (with touchbar) but with I7 processor and 16gb ram). And I've order the Belkin cable. I can say to you in 2 days what is my feeling ;)
     
  3. econ macrumors newbie

    econ

    Joined:
    Jan 5, 2017
    #3
    How much stutter is there? I have some stutter when I have more than 6, 7 windows open. I have a lot of stutter using Better Touch Tool. I have lots lots lots of stutter with softwares that are traditionally not optimized for Mac OS (prime offender right now is LyX). I have some stutter scrolling PDFs on Preview.

    I can live with it but I also understand if you can't.
     
  4. WilliamG macrumors G3

    Joined:
    Mar 29, 2008
    Location:
    Seattle
    #4
    To be fair, much of this can be traced back to the laptop pushing that many pixels COMBINED with you're scaling those pixels, too. So this is even more work. Have you tried running it at "native" mode (i.e. 2560x1440 effective), rather than scaled?

    I have the entry TouchBar 13" with only 8GB RAM, and it runs pretty fine with the 5K display at native 1440p Retina.
     
  5. w-f thread starter macrumors newbie

    Joined:
    Jan 25, 2017
    #5
    Some stutter! Sure it is not super dramatic. But the whole OS just feels not very responsive. For my workflow a lot of times very frustrating.
    And yes you are right the more windows I have opened the more stutter I have.

    But honestly I am not willing to live with the stutter for a LG or Apple premium product.


    Yes in native mode it is slightly better.
     
  6. mctrials23 macrumors 6502

    Joined:
    Sep 19, 2013
    #6
    This is a bit of a worry as I would like to get one of these but if the UI and the OS in general slow down thats a big issue.
     
  7. MrX8503 macrumors 68020

    Joined:
    Sep 19, 2010
    #7
    Do you have your macbook lid open or closed?
     
  8. pookitoo macrumors regular

    pookitoo

    Joined:
    Apr 16, 2015
    Location:
    Paris
    #8
    Hello, I ve receive my lg 5k today :

    I ve disable transparency and reduce effect in accessibility because without that some lagging effect in native mode with some effect
    Everything run smoothly when you do some basic stuff
    When I open a big project in sketch app, so slowdown' very laggy zoom ...
    bad experience and when the evening came , with the black background some leak light ...........
     
  9. MrX8503 macrumors 68020

    Joined:
    Sep 19, 2010
    #9
    That's good to hear. I disable all the visual flair by default anyway. It's not worth the lag.

    I disable transparency, hide/show dock, magnify dock, and genie effect.
     
  10. w-f thread starter macrumors newbie

    Joined:
    Jan 25, 2017
    #10
    Closed!
     
  11. mikerose macrumors newbie

    Joined:
    Jan 16, 2017
    Location:
    Canada
    #11
    Me too, I keep it closed. I’m using a 2017 MBP TB i7 with 16gb and it’s horrible. Using Lightroom with nothing else open is sometimes unusable, the fan in the MacBook starts whirling away and everything slows down to a crawl. I unplug the monitor and use the laptop by itself and it’s fine. The LG UltraFine is gorgeous when it works, but most of the time it’s just a big expensive paperweight!
     
  12. technoholic macrumors 6502a

    Joined:
    Mar 20, 2016
    #12
    Sorry for resurrecting an old thread but just got an LG 5k and having the same issue. Everything is very stuttery and slow. Especially the screen saver, Flurry runs about 10fps or less, and makes the MacBook fans go crazy.

    I'm guessing this is just the fact that the MacBook is trying to drive so many pixels but is there anything I can do? I run it scaled and at native resolution it's no good for me personally.

    Would the later newer MBPs be better? I also have the same specs as the OP
     
  13. lankox macrumors regular

    Joined:
    Jul 5, 2007
  14. Evangeline macrumors member

    Evangeline

    Joined:
    Feb 26, 2014
    #14
    After much testing, forum reading and head scratching I think the issue - at least on my 2016 15'' MBP with Radeon 455 - is that it's running out of VRAM. 2GB isn't enough. So it may run good on the 15'' 2018 MBP since they have 4GB.
     

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