[alsa-devel] Alsa-devel Digest, Vol 18, Issue 45

[Takashi Iwai]

At Sat, 16 Aug 2008 06:15:46 -0700 (PDT),
S. Aguinaga wrote:
> 
> S. Aguinaga wrote:
> > 
> > Hello Stan,
> > 
> > This is awesome I did find the problem it's listed in the /var/log/messages under ALSA.
> > 
> > 1.   When I bring up the "Pulse Volume Control" gui, the first tab "Playback"  comes up empty, and grayed-out is "No Streams Available"
> > 2.   aplay does not produce sound, period!
> > 3.   Amrok's welcome sample does not produce sound out of the std tower speaker or the headphone jack.
> > 
> > I didn't notice anything strange on the output of the alsa-info.sh file, but when I checked the var/log/messages, this is what I found:
> > 
> >  sudo cat /var/log/messages | grep ALSA
> > Aug 11 07:52:10 macprolinx kernel: ALSA sound/pci/hda/hda_intel.c:1810: chipset global capabilities = 0x4401
> > Aug 11 07:52:10 macprolinx kernel: ALSA sound/pci/hda/hda_intel.c:749: codec_mask = 0x1
> > Aug 11 07:52:10 macprolinx kernel: ALSA sound/pci/hda/hda_codec.c:1073: Cannot find slave Surround Playback Volume, skipped
(snip)

These messages are harmless.  It's just information from the driver,
enabled only when you build it with CONFIG_SND_DEBUG_VERBOSE=y.

> I think your problem is a misidentification of your sound chip.  The 
> model being used for your 889A appears to be incompatible, thus all 
> the errors above.  It appears that the macpro ALC885 is being selected 
> before it gets to the choice for the ALC889A.  Perhaps a developer can 
> look into this.

Well, ALC882, ALC885 and ALC889A are almost compatible.  In the
driver, they are all handled in the same routine.

There are a few models for intel macs with ALC88x.  Try to specify
either model=macpro, model=mbp3 or model=imac24 as the module option
of snd-hda-intel driver.


Takashi