Re: Tool to configure sound
On Thu, Nov 01, 2007 at 12:51:51PM +0100, Florian Kulzer wrote:
[...]
>
> I am just following Documentation/sound/alsa/ALSA-Configuration.txt.
> The "Documentation" directory is part of the kernel source; you can
> also get it separately by installing the linux-doc-... package for your
> version of the kernel.
>
> One source of problems with ALSA is that each driver (snd_hda_intel in
> your case) has to support different codec chips (here: ALC883) and that
> each codec chip can come in a number of different configurations
> ("models"). The ALSA developers are in an "arms race" with the laptop
> manufacturers, trying to make sure that the driver recognizes the codec
> chip model correctly for the ever-increasing number of laptop models. In
> your case no specific codec chip model was declared when the module was
> loaded, so the default configuration was chosen. This could mean that
> there might be an additional volume control for your chip which is
> currently inaccessible to you.
>
> You can try different codec chip models (e.g. "3stack") by running:
>
> modprobe -r snd_hda_intel
> modprobe snd_hda_intel model=3stack
I tried that arbitrarily, but it didn't happen to be the one. I shall
have to read the documentation to see what other options there are.
>
> There might be a model which makes sound work right away, or which at
> least gives you an additional control which you can unmute and turn up.
> Maybe one of the other workarounds discussed in ALSA-Configuration.txt
> will get you going. If you find module parameters that work then you can
> append them to the hda-intel "options" line in /etc/modprobe.d/sound.
>
> Other things to consider are:
>
> - The problem might go away automatically if you upgrade to a newer
> version of ALSA and/or the kernel. (I don't recall if you mentioned
> which branch of Debian you are currently using.)i
Yes, I did upgrade to the latest in etch (which I am running currently)
hoping for such a miracle. Maybe I should consider going back to sid,
which I ran for a long time previously. I had the impression three
months or so ago that that was a bad moment to get into sid, so I am
still here in etch.
>
> - Maybe you can avoid the trial-and-error if you find someone who
> figured it out already for your laptop model. (TuxMobil, etc.)
I'll go there when I have a moment
> - The ALSA mailing list is the last resort if all else fails.
Florian, thanks for all these good suggestions, and for pointing me to
the correct source for information. I hadn't planned on becoming an
expert in alsa, but a suppose a little more knowledge will do no harm,
and might make my computer speak...
--
richard
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