[gobolinux-users] kernel 2.6.22

[kenneth marken]

On Thursday 16 August 2007 17:22:18 kenneth marken wrote:
> On Thursday 16 August 2007 16:41:00 Isaac Dupree wrote:
> > Lucas C. Villa Real wrote:
> > > A new version of the linux recipe has just been commited, and will be
> > > made available in a few hours as a tarball (this is an automatic
> > > process, please wait some hours before the server rescans the recipe
> > > tree).
>
> cut 8<
>
> > Also I think ALSA-recipes should be updated to 1.0.14 for this kernel
> > version (or the updated ALSA-Lib 1.0.14a).  I upgraded ALSA-Lib and
> > ALSA-Utils; should I upload these recipes? (there are other ALSA-* that
> > I don't have installed...); although sound still doesn't work for me
> > (since forever on Gobo), presumably because:
> >
> > ]dmesg | grep -i -C 1 ALSA
> > Advanced Linux Sound Architecture Driver Version 1.0.14 (Thu May 31
> > 09:03:25 2007 UTC).
> > ALSA device list:
> >    No soundcards found.
> >
> > Even though snd_hda_intel module is automatically loaded, lspci sees the
> > sound card, alsaconf seems to be able to detect it... `cat </dev/urandom
> >
> >  >/dev/dsp`, as root no less, makes no sound.  I'm waiting to
> >
> > investigate further, until installing a newer Udev than 095 is likely to
> > work, since I heard that some newer udev will autoconfigure (obsoleting
> > alsaconf) and also udev and kernel version really are closely related.
>
> i can confim that i have been seeing that odd sound issue. hell i even
> tried installing alsa drivers on its own alongside 2.6.21.x at one point.
>
> thing is that snd-hda-intel is a collection of drivers, and the no
> soundcard thing just indicates that alsa could not make heads or tails of
> the chip even if it in theory was a snd-hda-intel chip.
>
> for me the sound worked, but was weak. after playing around with some
> settings i found that passing a option that made the driver think i was
> using a targa laptop enhanced the sound. but it also seems to have killed
> my ability to mute sound :(
>
> all in all i suspect that snd-hda-intel is basically the winmodem of sound.
> they all label their motherboard with AC97 soundcard, but in reality you
> need a very specific driver to control that soundcard.
>
> best  i can suggest is to download the alsa-driver tar.gz, find the
> alsa-configuration.txt file inside alsa-kernel/Documentation in that
> tar.gz, and look at the snd-hda-intel section.
>
> there you will find a list of model names that you can compare with what
> you get with lspci and then just attempt to modprobe snd-hda-intel with the
> model= option until you find something that works for you, if anything.

bah, replying to myself again.

i played around a bit and found that my ac97 chip supported msi.

passed enable_msi=1 to the module, and my sound became more loud all at ones.

so it could be as simple as that, and also check alsamixer or kmix for the 
main channel being muted and set to zero. alsa defaults to that when a driver 
is first loaded for whatever reason. i guess it beats having it on at full 
blast and someone getting their hearing destroyed by a error message.

hmm, my mute still dont work...

i have to toggle headphones for it to mute for whatever reason...

guess ill play around some more ;)