8 Replies Latest reply: Aug 24, 2010 8:21 AM by Gregory Blair
products7074740 Level 1 Level 1 (0 points)
whenever I watch a video (in this case the office) fullscreening it always dropped a few frames as expected. Lately though, it takes about 5 seconds for the video to start playing smoothly again and sometimes I get a green screen for a few seconds. I have reset the computer, zapped pram, and deleted itunes and quicktime preferences. All software is up to date 2.4 ghz intel core 2 duo, problem occurs on both the discrete and integrated chip.
  • varjak paw Level 10 Level 10 (169,830 points)
    It will probably help people diagnose the situation and offer suggestions if you'll post some details about your situation, such as the model of Mac you're using, what version of Mac OS X you have, and what version of iTunes and QuickTime are installed on your system. Otherwise we don't have much to go on.

    Regards.
  • products7074740 Level 1 Level 1 (0 points)
    as said before, 2.4 ghz MBP core 2 duo, everything up to date. I'm on snow leopard so this means quicktime x (10.0) and itunes 9.0.3.
  • varjak paw Level 10 Level 10 (169,830 points)
    Thanks. FYI, you didn't say MBP, you just said 2.4GHz Core 2 Duo which could apply to more than one system (including a Windows or Linux machine). And of course "up to date" can mean different things, particularly when you don't specify your base OS version.

    Anyway, perhaps now someone will have a suggestion.

    Regards.
  • products7074740 Level 1 Level 1 (0 points)
    any ideas? I've tried uninstalling itunes, reinstalling leopard over the OS, I really would rather not do a full erase and install. anything else i could try? it seems that itunes is encoding slower than usual i just dont know why.
  • products7074740 Level 1 Level 1 (0 points)
    i have read that one person experienced this as a logic board issue. After a full erase and install the problem still persists
  • products7074740 Level 1 Level 1 (0 points)
    console turns up this as an error 

    2/27/10 7:31:49 PM [0x0-0xc00c].com.apple.iTunes[141] Sat Feb 27 19:31:49 ________-________'s-macbook-pro.local iTunes[141] <Error>: kCGErrorIllegalArgument: CGSSetWindowCaptureExcludeShape: Failed
  • varjak paw Level 10 Level 10 (169,830 points)
    A long shot, but you have any third-party QuickTime or iTunes plugins (the DivX codecs, any visualizer plugins, etc) you might remove them and see if that makes any difference.
  • Gregory Blair Level 1 Level 1 (5 points)
    I get the exact same thing. Although it happens with all video related content even after a few seconds. Every 5 seconds or so, the video skips, hiccups, freezes, lags, is choppy... whatever you want to call it. It happens on music videos, purchased videos, and video podcasts. It doesn't seem to matter that this video resides locally on my hard drive and is not streaming across the Internet or a network. Is this a memory cache buffering issue? Is this a video card issue? Does anyone have any thoughts? Another thought: I have a very large iTunes library = over 55,000 songs, videos, podcasts, etc. Perhaps this is affecting playback of videos? My computer is beefed up and max'ed out with all the available RAM, I have a brand new logic board (motherboard + video card) and have a freshly installed Snow Leopard system as of 6 weeks ago.

    My configuration: 17" MacBook Pro 2.6 GHz Intel Core 2 Duo (2008 vintage), 4GB RAM, OS X 10.6.4, iTunes 9.2.1, QuickTime 10 (and QuickTime 7 Pro)

    This video playback issue is unacceptable! Thoughts?