Comment 52 for bug 396558

None of the solutions above restored my flash sound. I have tried many suggestions in the ubuntu 64-bit and other forums to no avail - either i get no sound, or Firefox crashes, the video window is blank or flash fails to install. However, my pulseaudio output volume meter appears to be active, the bars jump, but no sound actually comes out. The other odd thing is i have flash sound through my TV speakers when i connect my latptop via HDMI. Can anyone else confirm that their flash plays in HDMI but not in their built-in laptop speakers? And does that offer a clue as to what to look for?

Karmic 64-bit nVidia Firefox