[alsa-devel] clicking noise with Sigmatel STAC9202

[Christian Steffen]

Here I send the two also-info files as attachments.

Initial problem was:
Under kernel 2.6.30, Sound is working, but has constant clicking noise in
the background, also if the sound is completely muted.
First I thought this sound would come from some hdd or whatever, but the
device has no mechanical parts. But this is what it sounds like - Irregular
clicking noise.

This noise immediately starts during boot up as soon as the module is loaded
and before X11 has started.
I already tried options like "position_fix=1 or 2" and different
"model="-options with no success.
"position_fix" didn't do anything at all and different model-options have
muted the device completely.

Kernel 2.6.24 with the same files has no issues.

>> Then give as attachments later (and don't forget Cc to alsa-devel ML)
>> these two files, not URL.  It's important because ML is archived
>> while pastebin can be removed at any time.

Thanks,
Christian Steffen



-----Ursprüngliche Nachricht-----
Von: Takashi Iwai [mailto:tiwai at suse.de] 
Gesendet: Mittwoch, 29. Juli 2009 17:32
An: Christian Steffen
Cc: 'Takashi Iwai'
Betreff: Re: AW: [alsa-devel] clicking noise with Sigmatel STAC9202

At Wed, 29 Jul 2009 17:11:18 +0200,
Christian Steffen wrote:
> 
> Thanks,
> 
> >> Well, then at least, the contents of /proc/asound/card0/codec#*,
> >> /sys/class/sound/hwC0D*/*_pin_configs files (if present), and the file
> >> generated via "alsactl -f somefile store".  These are the most
> >> important information.
> 
> There is no pinconfig file and there is also no alsactl tool present.
> I could obtain the output from the codec stuff:
> 
> http://pastebin.com/m1b81f47d (old kernel 2.6.24, only the codec info)
> http://pastebin.com/m5baeca9a (new 2.6.30)
> 
> that's all I could get for the older kernel as I only have access using
> telnet.

Then give as attachments later (and don't forget Cc to alsa-devel ML)
these two files, not URL.  It's important because ML is archived
while pastebin can be removed at any time.


Takashi

 
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