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 -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of "unsubscribe". Trouble? Contact [EMAIL PROTECTED]