Re: Alsa v1.0.12rc1 Realtek ALC260 PCM missing at boot

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At Tue, 27 Jun 2006 15:12:46 +0100,
Barry Scott wrote:
> 
> Takashi Iwai wrote:
> > At Tue, 27 Jun 2006 12:54:05 +0100,
> > Barry Scott wrote:
> >   
> >> I'm using 21.6.17.1 with v1.0.12rc1 drivers, libs and utils on FC4.
> >> alsamixer reports that the Chip is Realtek ALC260.
> >>
> >> Both amixer and alsamixer show that the PCM control is missing after 
> >> booting.
> >> After playing a wav file with aplay the PCM control shows up in both
> >> amixer and alsamixer.
> >>
> >> Is there something I need to configure or is this a bug in1.0.12rc1?
> >>     
> >
> > The PCM volume is added dynamically by alsa-lib softvol plugin.
> > Usually your system stores/restores the mixer status so that the PCM
> > volume reappears again at the next boot.
> >
> >
> > Takashi
> >   
> What is it that I need to setup to turn on the PCM? The "system" is me 
> and this
> is a new setup requirement that I have not seen before.

"alsactl store" at shutdown and "alsactl restore" at boot will recover
the last mixer status.  This also automatically recovers the
user-space element like "PCM".

How the call of alsactl is implement depends on the distro.
(E.g. via udev or init script or modprobe hook)


Takashi

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