All I know is you can use the amixer command to set volume and mute/unmute.
You can put that in start up scripts.
- [Trisquel-users] Volume muted by default Aniyan Rajan
- Re: [Trisquel-users] Volume muted by default mikko . viinamaki
- Re: [Trisquel-users] Volume muted by default Aniyan Rajan
