Re: New install - no sound
On Sun, Dec 11, 2005 at 08:53:09AM -0200, Eduardo M KALINOWSKI wrote:
> Russ Cook wrote:
>
> > I have an ASUS A8N32 SLI Deluxe motherboard with an AMD4800 dual core
> > processor. I believe the audio is Realtek ALC850. I performed a
> > clean install from unstable from
> > http://mirror.espri.arizona.edu/debian-amd64/debian/ testing main. My
> > system is up and running, and I have been performing apt-get update
> > and upgrade periodically. My kernel is
> > vmlinuz-2.6.12-1-amd64-k8-smp. My problem is that I don't have any
> > sound from the system. Attached is the output from 'lsmod'. The
> > utility 'Discover' is installed. Can anyone offer some pointers?
>
> This will seem weird, but try plugging your speakers in another jack -
> the microphone or the line out one. I have a similar board, and sound is
> output through the microphone jack, not the speaker jack. I still don't
> know why.
Because intel and others @#$#@$ with the AC97 standard. The
snd-intel8x0 driver has a quirks option that allows for rearanging that
stupidity back to normal.
parm: ac97_quirk:AC'97 workaround for strange hardware. (array of charp)
You might have to look at pci/ac97/ac97_codec.c for a list of valid
quirk options. For a realtek ALC chip the option ac97_quirk=alc_jack
might be useful (it appears to enable the auto jack select feature of
those chips). There are also quirks for swapping master/headphone
volume controls which seems to be needed on some systems. AC97 is a
real mess.
Len Sorensen
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