External monitor twitching?

Discussion in 'MacBook' started by Mikel30, Aug 6, 2016.

  1. Mikel30 macrumors member

    Joined:
    Jan 11, 2004
    #1
    I have a 2016 MacBook. I've tried two different USB-C to HDMI adapters, and both have done the same thing. One was a cheap Chinese adapter off Amazon, the other is a Monoprice adapter. Every so often, the external monitor will "twitch". Maybe twitch isn't the right word. It looks like the external monitor is swiping to a new space (completely un-prompted), and then stop in the middle of the animation and return to what was being displayed. It happens in a fraction of a second.

    The first adapter did it quite frequently (every minute or two). The new Monoprice adapter will do it once every 30 minutes or so. Is this an adapter issue? A computer issue? A software glitch? Has anyone else experienced this? I'm not sure how to troubleshoot it any further.
     
  2. JTToft macrumors 68040

    Joined:
    Apr 27, 2010
    Location:
    Aarhus, Denmark
    #2
    I'm betting on an adaptor issue since you saw an improvement when switching them out. Try with the Apple HDMI adaptor.
     
  3. doboy macrumors 68000

    Joined:
    Jul 6, 2007
    #3
    I've seen this on one of my old 1200p monitor using the Apple HDMI/USB-C adapter.
     

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