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SubjectRe: regression in 2.6.30-rc6 -- via82xx sound very quiet
At Sun, 17 May 2009 21:38:03 +0100,
Richard Kennedy wrote:
>
> On Sun, 2009-05-17 at 19:16 +0200, Takashi Iwai wrote:
> > At Sun, 17 May 2009 17:47:54 +0100,
> > Richard Kennedy wrote:
> > >
> > > In the current git 2.6.30-rc6 the sound from my motherboard has become
> > > extremely quiet, I have to turn my speakers up all the way to hear
> > > anything at all.
> > > I'm not too sure when the problem first started but I've just tested
> > > 2.6.30-rc4 and it works correctly.
> >
> > Try to correct "DXS Playback Volume" mixer elements.
> > The dB range of these volumes were fixed recently to the correct
> > values. If the old mixer value is restored using the dB value,
> > it would be restored to a much lower value, which explains your
> > symptom.
> >
> > Simply set these volumes to the max (i.e. 0dB) and never change unless
> > you really need them.
> >
> >
> > thanks,
> >
> > Takashi
>
> Hi Takashi,
>
> thanks for that. Yes that works.

Thanks for checking.

> I didn't even know I had that control, so I guess this could be a common
> problem.

Yes, unfortunately, it would hit to many via82xx ac97 chips.
As the original value was wrong, it can't be corrected so easily from
the driver side. Manual corrections seem needed, but just only once.


Takashi


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