ThinkPad X300, FreeBSD 8.0-CURRENT and snd_hda

Alexander Motin mav at FreeBSD.org
Tue Mar 31 13:49:55 PDT 2009


Bukin Ruslan wrote:
> On Sun, Mar 29, 2009 at 12:50:16AM +0200, Alexander Motin wrote:
>> Bukin Ruslan wrote:
>>> 0 br:pts/4:/home/br >cat /dev/sndstat
>>> FreeBSD Audio Driver (newpcm: 32bit 2007061600/i386)
>>> Installed devices:
>>> pcm0: <HDA Analog Devices AD1984A PCM #0 Analog> at cad 0 nid 1 on hdac0 kld snd_hda [MPSAFE] (1p:1v/1r:1v channels duplex default)
>>> pcm1: <HDA Analog Devices AD1984A PCM #1 Digital> at cad 0 nid 1 on hdac0 kld snd_hda [MPSAFE] (0p:0v/1r:1v channels)
>>> pcm2: <HDA Analog Devices AD1984A PCM #2 Analog> at cad 0 nid 1 on hdac0 kld snd_hda [MPSAFE] (1p:1v/0r:0v channels)
>>>
>>> 1) int-mic is not working;
>>> 2) i hear no sound (only noise) in my headphones when i plug them into green jack.
>> Boot with verbose messages enabled. It will give you all information  
>> needed to troubleshoot the problem.
> 
> Thanks, snd_hda have really good verbose.
> 
> i have set as=1 seq=15 to nid 17 and headphones works fine now,
> monitor still not working :(

I don't see problems there. Try to play with GPIO signals, may be some 
combination enable that microphone. Also ALSA driver sets some magic 
"processing coefficient" for that digital microphone, but I have no idea 
what it is, as it is nonstandard.

-- 
Alexander Motin


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