Ubuntu
alsa-utils package

  1. Bug #352732
  2. Comment #26

Comment 26 for bug 352732

Revision history for this message
Montblanc (montblanc) wrote : Re: [jaunty] Sound muted after boot

The same is happening with KDE too. Volume gets muted every 60 seconds or something. Disabling pulseaudio following this guide helped:
http://idyllictux.wordpress.com/2009/04/21/ubuntu-904-jaunty-keeping-the-beast-pulseaudio-at-bay/