[alsa-devel] Volume control channels mixed

[Takashi Iwai]

At Tue, 10 Apr 2007 12:04:48 +0200,
Simon van der Linden wrote:
> 
> Takashi Iwai wrote:
> > At Mon, 09 Apr 2007 11:30:58 +0200,
> > Simon van der Linden wrote:
> >> Hello,
> >>
> >> I use Alsa in the latest Ubuntu bêta, with my MacBook.
> >> lspci gives the audio card as:
> >> 00:1b.0 Audio device: Intel Corporation 82801G (ICH7 Family) High
> >> Definition Audio Controller (rev 02)
> >>
> >> Sound is working pretty good. However, volume control channels (in
> >> alsamixer) are mixed:
> >> with laptop speakers:
> >> 	Master controls treble volume
> >> 	Front controls bass volume
> >> with headphones:
> >> 	Master has no effect
> >> 	Front controls the volume
> >>
> >> I'm unfamiliar with Alsa, but I guess it shouldn't be too hard to
> >> correct that. Browsing the web didn't give me more informations.
> >>
> >> Perhaps some of you could help me?
> > 
> > Which kernel and which ALSA version?
> 
> Alsa 1.0.13
> Linux 2.6.20

Too old :)

There are giga tons of bug fixes regarding HD-audio after 2.6.20.  Try
to build ALSA modules externally from the latest ALSA driver tree.


Takashi