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  1. #1
    QT Fullscreen Playback Choppy in Leopard?

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    QT Fullscreen Playback Choppy in Leopard?
    Ever since switching to leopard I find that if I try to run videos in fullscreen they play back slow and choppy. However when I play them in VLC they run fine.

    Im not sure if its a codec issue (i have perian installed) but im not sure, perhaps it's just quicktime??

    At first I thought it might just be Xvid/Divx files, but it's also occuring with my own films that I've exported from Final Cut.

  2. #2
    QT Fullscreen Playback Choppy in Leopard?
    Fiasco's Avatar
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    Quote Originally Posted by ehmjay View Post
    Ever since switching to leopard I find that if I try to run videos in fullscreen they play back slow and choppy. However when I play them in VLC they run fine.

    Im not sure if its a codec issue (i have perian installed) but im not sure, perhaps it's just quicktime??

    At first I thought it might just be Xvid/Divx files, but it's also occuring with my own films that I've exported from Final Cut.
    What are your system specs?
    MacBook 13" Unibody White
    Camera: Canon 40D / Sigma lenses 17-70mm 2.8-4.5 / EX 10-20mm 4-5.6 / 70-300mm 4-5.6 / Vivitar 285HV's
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  3. #3
    QT Fullscreen Playback Choppy in Leopard?

    Member Since
    Dec 30, 2005
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    Just thought I would mention this is on a 1.5 GHz Powerbook G4 with 1.25 gb.

    My big monitor is running at 1440x900 butt even on my laptop at 1024x768 its a little laggy.

    also I should note that even at "fit to screen" it runs perfectly fine, its just when it goes into full screen mode that I get the lag.

  4. #4
    QT Fullscreen Playback Choppy in Leopard?

    Member Since
    Dec 30, 2005
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    bump bump bump

  5. #5
    QT Fullscreen Playback Choppy in Leopard?

    Member Since
    Oct 17, 2007
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    Specs:
    2.16 GHz C2D, 1GB Ram, MacBook White
    I don't find that problem and i have a wide variety of films and music videos. Using MacBook 2.16GHz, 1GB Ram at max res.

  6. #6
    QT Fullscreen Playback Choppy in Leopard?

    Member Since
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    this is so weird... i mean it could be my processor speed (1.5 ghz) but i have 1.25 gb ram, and it always ran FINE in tiger - and also works just fine in VLC...

    i know some people are having troubles and its probably a QT issue but I have no idea... perhaps a codec thing? Maybe I'll just go visit an apple store...

  7. #7
    QT Fullscreen Playback Choppy in Leopard?

    Member Since
    Oct 17, 2007
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    Have you updated the software as there is and update that was released yesterday

  8. #8
    QT Fullscreen Playback Choppy in Leopard?

    Member Since
    Oct 17, 2007
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    Specs:
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    Oh it sometimes happens if you have multi windows open

  9. #9
    QT Fullscreen Playback Choppy in Leopard?

    Member Since
    Dec 30, 2005
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    i have updated the software, and i assume by multi-windows you mean multiple QT windows - which was not the case...

    ...apprently this is common for PPC users - we'll have to keep waiting and see.

  10. #10
    QT Fullscreen Playback Choppy in Leopard?

    Member Since
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    No i meant multi windows as in all windows open for different programs

  11. #11
    QT Fullscreen Playback Choppy in Leopard?
    xstep's Avatar
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    I saw this problem mentioned before Christmas. The conclusion seemed to be that is was a QuickTime issue but maybe even a low level Leopard issue too. Some people saw it while others didn't. I can't remember where I saw this mentioned, but I would check on the Apple forums.

    Apple just released Qt 7.4 so you might want to try upgrading to that. IF you are not a pro doing some kind of video/audio editing.

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