Re: Sound on a VIA8235

Re: Sound on a VIA8235

[Takashi Iwai]

Hi Martin,

At Tue, 28 Jan 2003 10:28:47 +0100,
Martin Haefele wrote:
> 
> Dear Takashi Iwai,
> 
> I write to you directly and not via a mailing list, because I already 
> have problems with SPAM and do not want to increase it. Hope that's okay 
> anyway.

doesn't matter, but i add Cc to alsa-devel ML, too, so that other
people can help you, too.

 
> On the sourceforge pages of the alsa project, I found out that you 
> initiated a call for testers for the above chip on Jan, 9th. And as you 
> suggested in your call, I used the latest CVS version of the 
> alsa-drivers plus the VIA8233[A].conf files.
 
you don't need VIA8233A.conf, btw.


> But the problem is, that I hardly can hear sound coming from the 
> speakers. I unmuted everything, but nothing helped very much. If 
> everything is at 100% and my HIFI volume is at 100% as well, then one 
> can hear sound coming from the speakers if and only if one is standing 
> right in front of them. The hardware is a ASRock K7VT2 with VIA8235 
> Southbridge. All that I could gather as information follows as attachment.

try to raise and unmute "Headphone" volume.
it's a kind of bug in alsa driver, because this volume is not really a
headphone but a "true line-out" volume according to the definition of
AC97 spec 2.2.


Takashi


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Re: Re: Sound on a VIA8235

[Nick French]

Hi all

I have a KV7MM+ board with via8235

I also had the same problem and this does indeed fix it. I changed the
volume in asound.state and did alsactl restore 0

is there anyway to get it so that it is the master volume as aumix and other
applications cannot change the volume now.

any mapping file I can change so that Headphone becomes master.

Thanks for the info so far I was scratching my head on this for while.

Cheers

Nick

----- Original Message -----
From: "Takashi Iwai" <tiwai@suse.de>
To: "Martin Haefele" <haefele@mpi-magdeburg.mpg.de>
Cc: <alsa-devel@lists.sourceforge.net>
Sent: Tuesday, January 28, 2003 10:08 AM
Subject: [Alsa-devel] Re: Sound on a VIA8235


> Hi Martin,
>
> At Tue, 28 Jan 2003 10:28:47 +0100,
> Martin Haefele wrote:
> >
> > Dear Takashi Iwai,
> >
> > I write to you directly and not via a mailing list, because I already
> > have problems with SPAM and do not want to increase it. Hope that's okay
> > anyway.
>
> doesn't matter, but i add Cc to alsa-devel ML, too, so that other
> people can help you, too.
>
>
> > On the sourceforge pages of the alsa project, I found out that you
> > initiated a call for testers for the above chip on Jan, 9th. And as you
> > suggested in your call, I used the latest CVS version of the
> > alsa-drivers plus the VIA8233[A].conf files.
>
> you don't need VIA8233A.conf, btw.
>
>
> > But the problem is, that I hardly can hear sound coming from the
> > speakers. I unmuted everything, but nothing helped very much. If
> > everything is at 100% and my HIFI volume is at 100% as well, then one
> > can hear sound coming from the speakers if and only if one is standing
> > right in front of them. The hardware is a ASRock K7VT2 with VIA8235
> > Southbridge. All that I could gather as information follows as
attachment.
>
> try to raise and unmute "Headphone" volume.
> it's a kind of bug in alsa driver, because this volume is not really a
> headphone but a "true line-out" volume according to the definition of
> AC97 spec 2.2.
>
>
> Takashi
>
>
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> SourceForge Enterprise Edition + IBM + LinuxWorld = Something 2 See!
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> _______________________________________________
> Alsa-devel mailing list
> Alsa-devel@lists.sourceforge.net
> https://lists.sourceforge.net/lists/listinfo/alsa-devel
>



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Re: Re: Sound on a VIA8235

[Takashi Iwai]

At Thu, 30 Jan 2003 16:21:20 -0000,
Nick French wrote:
> 
> Hi all
> 
> I have a KV7MM+ board with via8235
> 
> I also had the same problem and this does indeed fix it. I changed the
> volume in asound.state and did alsactl restore 0
> 
> is there anyway to get it so that it is the master volume as aumix and other
> applications cannot change the volume now.
> 
> any mapping file I can change so that Headphone becomes master.

you can remap the oss mixer elements.

	# echo VOLUME Headphone 0 > /proc/asound/card0/oss_mixer

see alsa-kernel/Documentation/OSS-Emulation.txt for details.

btw, please send us the lspci -vv and lspci -nv of your sound chip
("multimedia" in the list).  this info will be necessary in the future
to build a quirk list.


Takashi


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