canonical-partner-dev team mailing list archive

[Whit Blauvelt <1015803@xxxxxxxxxxxxxxxxxx>]

Found the problem. It's an odd one. Looking in the Volume Control app
(not sure if it's a Gnome or Xfce thing - desktop is Xfce), it showed
that it has been defaulting to trying to play the audio stream through
"Redwood HMDI Audio" on account of seeing a Radeon video card in the
system. Turning that off under the Configuration tab and having Built-in
Audio set to the appropriate (in my case) Analog Stereo Audio not only
restores sound, but it fixes the Flash-video-racing-ahead problem.

What's insane is that video should race ahead because of a non-
functioning audio output. How could Adobe have ever programmed Flash
with that dependency?

In any case it appears that in the upgrade cycle Ubuntu insisted on
bringing HDMI audio back into play. That had been set correctly - off -
before the upgrade. I do have HDMI to my monitor, but its speakers are
analog.

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https://bugs.launchpad.net/bugs/1015803

Title:
  flash plugin skips ahead, has no sound after 11.04 to 12.04 upgrade

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