No sound in Firefox flash videos

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#1

I am using openSUSE 11.2 64-bit with Firefox 3.5.8 and Shockwave Flash plugin 10.0 r45. I am getting only video but no sound in Flash videos. Exactly how do I fix this?

Thank you very much.

#2

There could be a few different reasons for your problem, and the solution provided may different dependent on your desktop (because each desktop handles sound differently). Are you a KDE user? A Gnome user ?

Some suggestions

  • start a video in Firefox and then check the mixer PCM level. That needs to be moved up in volume and it may have dynamically moved down to zero
    .
  • If KDE check YaST > Hardware > Sound and note the priority of audio devices. The device in which you wish to play audio from in Firefox should typically be chip-0. Then go to KDE kickoff application launcher > Configure Desktop > Multimedia and ensure the priority of audio devices there matches what you observed in YaST.
    .
    Often users with 2 sound devices will struggle a bit with Firefox and flash videos until they sort this.
    .
  • Go to Firefox > Edit > Preferences > Applications > Shockwave Flash file and change the selection to “use Flash Player (default)”. You may need to restart firefox afterward.

Good luck

#3

If I wanted to wager, this would be the one:

start a video in Firefox and then check the mixer PCM level
Yesterday, I installed 11.2 64-bit (kde livecd) in a dual-boot with Win7 on a new ThinkPad, and that was the problem i.e. PCM at zero. IIRC I had same outcome with that livecd when installing to my desktop. I was impressed with the flash video picture working OOTB with openSUSE. Mixer volume (Kmix) was ok, but PCM was definitely zero.

#4

Thanks for the suggestions re fixing sound in Firefox. Sorted out my Flash sound problem and problems playing music in other pages.