Since I updated to 10.6.8 yesterday (and this might be coincidence), both Quicktime Player (I still use 7) and VLC (current version) keep stopping the video (but not the audio) of movies I am watching. This happens whether they are in the background or fullscreen and fixes itself when the program gains focus.

Is this a faulty video driver that came with 10.6.8 or what could be the reason?

Mac Pro 2009 2x2.26 GHz, 24 GB, ATI Radeon HD 4870.

  • This is still ongoing. And I remember that it happened before but went away again. Aug 6 '11 at 14:20
  • Yes, even for me on a fairly fast MacBook Pro 2.3GHz i5 (10.6.8) Rendering some edits in After Effects, they play perfectly fine, but once I export them, the players stutter and pause for an uncomfortable amount of time before eventually resuming.
    – user20623
    Mar 23 '12 at 18:46
  • Everything started working again a few months ago. Still don't know what it was. Mar 23 '12 at 21:53

This kind of behavior, whether it is video only stopping (but audio continuing) or audio only stopping (but video continuing), has happened to me when the machine was over-loaded with other processes running. Quitting chrome, with my many open tabs, has solved the problem for me before.

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