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Old Nov 5, 2012, 11:19 AM   #1
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Join Date: Sep 2006
Youtube videos playing 5-10fps when in fullscreen mode.

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?


iMac 27" late 2009

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

Last edited by cupique; Nov 8, 2012 at 04:01 PM.
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MacRumors Forums > Apple Applications > Mac Applications and Mac App Store

imac, mountain lion, stutter, youtube

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