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I am not sure if this is a Ubuntu fault but I have Ubuntu setup with LXDE. Just today, I found that videos on YouTube plays too fast. I tried with daily motion, same thing. Then tried to download trailers from apple. I get an error about segmentation fault. Did something go wrong with Ubuntu?

I saw a similar question then I also noticed that when videos fast forward, theres not sound too

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up vote 0 down vote accepted

Is your version of Ubuntu 64-bit? If it is, that is most likely the problem. Adobe has terrible problems when it comes to supporting 64-bit drivers.

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yes its 64bit, I wonder if it will be a waste if I install 32bit? Does 64bit provide any performance or other benefits? – JM at Work May 24 '11 at 5:40
I'm not sure, but I think installing pulseaudio fixed it, or perhaps it was something else' – JM at Work May 30 '11 at 1:54

Here is the thing that worked for me.

Go to System->Preferences->Sound->Hardware

disable the item which is selected in there.

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Try reinstalling Flash, it seems to be Flash that is your problem.
If that doesn't work, try downloading the w32 codecs.
sudo apt-get install w32codecs
Sorry I don't have much info, hope it helps though. :)

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