Youtube videos playing 5-10fps when in fullscreen mode.

Discussion in 'Mac Applications and Mac App Store' started by cupique, Nov 5, 2012.

  1. cupique, Nov 5, 2012
    Last edited: Nov 8, 2012

    macrumors newbie

    Joined:
    Sep 4, 2006
    #1
    I've been having problems with youtube's flash-player after installing mountain lion. Videos play fine otherwise, but if I switch to fullscreen framerate drops dramatically. CPU usage stays low the entire time but video stutters like no other. I did even a fresh install of OS X, but even that didn't change a thing. Any other videoplayer works fine in fullscreen so it isn't about videocard being hosed. It isn't a buffer problem either, because if I let the video buffer fill up, the problem persists. Other flash-based players also work fine. Problem occurs in all major browsers.

    Is anyone else experiencing this or is it just me?

    Configuration:

    iMac 27" late 2009

    2,8Gz Intel Core i7
    16GB DDR3
    ATI Radeon HD 4850 512 MB
    OS X 10.8.2
     

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