Choppy video playback on Mac Mini using QT, iTunes, VLC but not PLEX...

Discussion in 'Apple TV and Home Theater' started by tbayrgs, May 2, 2010.

  1. macrumors 601

    tbayrgs

    Joined:
    Jul 5, 2009
    Location:
    Florida, USA
    #1
    I'm having problems playing back video on my Mac Mini (hooked up to a Samsung Plasma) using all varieties of media players, including VLC, Quicktime, and iTunes. Regardless of the media file (SD, HD, various bitrates) it always appears choppy/studders. Yet, when I playback video in PLEX, I have no problems.

    All of my media is kept on an external HDD connected to the mini via FW800. When I playback any of the media on any other device--macbook connected wirelessly (802.11N) or streamed to an :apple:TV I also have no issues, video is very smooth.

    Any ideas what is causing the problem?
     
  2. macrumors 6502a

    Joined:
    Nov 19, 2006
  3. thread starter macrumors 601

    tbayrgs

    Joined:
    Jul 5, 2009
    Location:
    Florida, USA
    #3
    Oh I agree but this seems to be a symptom of another problem(s). It happens with ANY video that I play--I know the mini isn't that powerful but my macbook can play it back fine using a wireless connection and inferior graphics capabilities.
     
  4. macrumors member

    Joined:
    Jan 8, 2008
    #4
    I had a problem similar to yours a few days ago. I have a Mac Mini hooked up to a 54' Plasma and for some reason I was running 1080p at 24hz. I dont remember changing that setting but I was getting all kind of stuttering and the audio track didn't match up. I tried EVERYTHING before I finally decided to bump the resolution down to 720p even though I had been running 1080p for months without any issues. I just happened to notice that the hz were set to 24hz and after I changed that back to 60hz everything worked fine.
     
  5. thread starter macrumors 601

    tbayrgs

    Joined:
    Jul 5, 2009
    Location:
    Florida, USA
    #5
    You might be onto something there. I switched from 720p to 1080p resolution a little while back as well and can't recall if I previously had the problem as I usually don't watch anything outside of Plex. I'll give it a go later and see if the problem disappears. Thanks for the suggestion.
     

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