Lag when running full screen applications in a 4k monitor

Discussion in 'OS X El Capitan (10.11)' started by Grolubao, Jan 13, 2016.

  1. Grolubao macrumors 65816

    Grolubao

    Joined:
    Dec 23, 2008
    Location:
    London, UK
    #1
    Hi all,

    Just purchased a Dell P2715Q 4k monitor. Looks great, but I've noticed that it lags a lot when I put an application in full screen, specially scrolling but also typing. If I shrink the canvas of that window that it's smooth and I don't have any problem.

    I'd guess it's something to do with the painting of the pixels from OSX.

    Does anyone else have this problem?

    I'm running a Mid 2014 Macbook pro retina 15" with i7 with 16gb ram.
     
  2. 3568358 macrumors 6502

    Joined:
    Jun 11, 2015
    Location:
    United States
    #2
    I dont have a monitor BUT there is probably still lag when running the application in the smaller window, but the effects are more prevalent when running them in full screen. Check the refresh rate on the tv through system preference > displays. make sure it is set to the highest.
     
  3. Grolubao thread starter macrumors 65816

    Grolubao

    Joined:
    Dec 23, 2008
    Location:
    London, UK
    #3
    Yes, exactly. Oddly enough, this doesn't happen on non 4k monitors. My refresh rate is 60hz, powered by a Display-port connection, so I was hoping it would be alright...

    Don't know how to fix this, seems a simple software issue.
     
  4. 3568358 macrumors 6502

    Joined:
    Jun 11, 2015
    Location:
    United States
    #4
    I do think there MIGHT be a software issue right now.
     

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