[alsa-devel] latest Mac Pro (quad core) audio issues

[S. Aguinaga]

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
Aug 11 07:52:10 macprolinx kernel: ALSA sound/pci/hda/hda_codec.c:1073: Cannot find slave Center Playback Volume, skipped
Aug 11 07:52:10 macprolinx kernel: ALSA sound/pci/hda/hda_codec.c:1073: Cannot find slave LFE Playback Volume, skipped
Aug 11 07:52:10 macprolinx kernel: ALSA sound/pci/hda/hda_codec.c:1073: Cannot find slave Side Playback Volume, skipped
Aug 11 07:52:10 macprolinx kernel: ALSA sound/pci/hda/hda_codec.c:1073: Cannot find slave Headphone Playback Volume, skipped
Aug 11 07:52:10 macprolinx kernel: ALSA sound/pci/hda/hda_codec.c:1073: Cannot find slave Speaker Playback Volume, skipped
Aug 11 07:52:10 macprolinx kernel: ALSA sound/pci/hda/hda_codec.c:1073: Cannot find slave Mono Playback Volume, skipped
Aug 11 07:52:10 macprolinx kernel: ALSA sound/pci/hda/hda_codec.c:1073: Cannot find slave Line-Out Playback Volume, skipped
Aug 11 07:52:10 macprolinx kernel: ALSA sound/pci/hda/hda_codec.c:1073: Cannot find slave Surround Playback Switch, skipped
Aug 11 07:52:10 macprolinx kernel: ALSA sound/pci/hda/hda_codec.c:1073: Cannot find slave Center Playback Switch, skipped
Aug 11 07:52:10 macprolinx kernel: ALSA sound/pci/hda/hda_codec.c:1073: Cannot find slave LFE Playback Switch, skipped
Aug 11 07:52:10 macprolinx kernel: ALSA sound/pci/hda/hda_codec.c:1073: Cannot find slave Side Playback Switch, skipped
Aug 11 07:52:10 macprolinx kernel: ALSA sound/pci/hda/hda_codec.c:1073: Cannot find slave Speaker Playback Switch, skipped
Aug 11 07:52:10 macprolinx kernel: ALSA sound/pci/hda/hda_codec.c:1073: Cannot find slave Mono Playback Switch, skipped

Let me know if I should send something else.

// Salvador 
// Northwestern University



----- Original Message ----
From: stan <ghjeold_i_mwee at cox.net>
To: S. Aguinaga <sa_jr at ieee.org>
Cc: alsa-devel at alsa-project.org
Sent: Friday, August 15, 2008 11:54:12 AM
Subject: Re: [alsa-devel] latest Mac Pro (quad core) audio issues

S. Aguinaga wrote:
> Hello,
> 
> I just installed fedora (9) on one of the latest Mac Pro, all is well except for the audio.  I have no audio out of the main Tower speaker or via the headphones.  Eventually I want to drive audio out of the optical ports.  Any links to howto's or work-around would greatly appreciated.
> 
> // Salvador
> 
Fedora uses pulseaudio by default.  How are you determining that there 
is no output?  i.e. what program are you using, and how

Try aplay -vv some.wav
Try aplay -vv -Dhw:0,0 some.wav
Try aplay -vv -Dplughw:0,0 some.wav

Are there error messages or does it look like it is playing without 
sound?  Are there messages in /var/log/messages regarding sound at 
boot or while trying to play.

I don't use pulseaudio and don't know it very well, but there is more 
information here.  http://www.pulseaudio.org

Could you run a script which provides more information about your 
sound setup and post the link back here?

The script is found at http://www.alsa-project.org/alsa-info.sh

You can run the script so the results occur locally, by specifying the 
   ---no-upload   option.

alsa-info.sh --no-upload

You would then paste the output into your email instead of providing a 
link.

This information will enable me to determine if your setup is OK, and 
look for other problems.



      
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