4k iMac Screen/Video issue. Brand new.

Discussion in 'iMac' started by sevoman, May 11, 2016.

  1. sevoman macrumors member

    sevoman

    Joined:
    Jan 23, 2016
    Location:
    Ancient Egypt
    #1
    Just got a brand new 4k iMac.
    I noticed almost immediately when watching YouTube videos that when I scroll down and then scoll back up to the video, there are moments when the picture suddenly becomes saturated/red and then quickly goes back to normal. It's fairly reproducible and I tried on many different YT videos, with the same momentary saturation. I recorded as best I can and caught two instance of this happening. It starts to happen at 0:05 and at 0:12. If you pause it at 0:06 and 0:14 you will see the color shift. Anyone know what this could be? I have other PC's and Macs and when comparing the same videos none of the others seem to exhibit this behaviour.
     
  2. Samuelsan2001 macrumors 603

    Joined:
    Oct 24, 2013
  3. CPx macrumors 6502

    Joined:
    Sep 6, 2013
  4. havokalien macrumors 6502a

    havokalien

    Joined:
    Apr 27, 2006
    Location:
    Kelso, Wa
    #4
    try turning off auto brightness in settings and it may take away some of that.
     

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