I am on 11.10 64bit and I have installed flash from http://get.adobe.com/flashplayer/otherversions/.
I had downloaded install_flash_player_11_linux.x86_64.tar.gz
and moved libflashplayer.so
to ~/.mozilla
and ~/.mozilla/plugins
I also have OSS installed because alsa does not work for me. I generally follow steps mentioned at https://help.ubuntu.com/community/OpenSound and everything works fine.
But for 11.10, flash has no sound. I am not sure if that is OSS problem.
I had a similar problem in Ubuntu Oneric Ocelot 11.10 32bit. I was able to hear sound from flash movies, but it would work in all other applications and even Pandora radio.
I was able to fix it by doing
then logging out and logging back in.
I think some settings file was botched by an upgrade to pulse, which the flash player depends on.
For more information, check out: http://kubuntuforums.net/forums/index.php?topic=3118895.msg277490#msg277490
Update:
I've noticed that after updating my flash player today that I am no longer having this issue.
If you have performed the fix mentioned above and were having issues with your sound icon remaining a flat line and needing to control your volume using
alsamixer
, this update appeared to fix that issue for me as well.