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* Conexant CX20561 - Microphone problems
@ 2009-10-29 22:59 Shawn Starr
  2009-11-02 13:05 ` Takashi Iwai
  0 siblings, 1 reply; 14+ messages in thread
From: Shawn Starr @ 2009-10-29 22:59 UTC (permalink / raw)
  To: alsa-devel

Hello ALSA developers, 

I am having problems with the microphone on the following hardware this is on 
a Lenovo W500 laptop.

Card: HDA Intel                                                                                   
Chip: Conexant CX20561 (Hermosa)

Here is the problems im noticing:

1) If I use ALSA 'default' with the microphone I get noise interference on 
output [high/low/high/low]. 

If I switch this to use the "ALSA Capture on HDA Intel [CONEXANT Analog] I get 
interference except it is the standard 60Hz electrical noise [steady noise]

2) Using the internal/external microphones gives an inconsistent volume. It 
also does not seem to work with the microphone cutting out so much. I need to 
adjust Digital + another microphone but it still drops capturing.

Alsamixer shows:  Digital/Docking Microphone/External Microphone/Internal 
Microphone

Here is the module options I give to the sound driver:

options snd-intel-hda enable_msi=1 power_save=10 power_save_controller=true 
model=laptop index=0

Assuming power saving/controller causes the microphone to cut out or not.

3) I'm now aware that this card has no pinouts for PCM capture 
https://bugzilla.redhat.com/show_bug.cgi?id=502293

Thanks for any help, 
Shawn.

^ permalink raw reply	[flat|nested] 14+ messages in thread

end of thread, other threads:[~2011-04-19  6:44 UTC | newest]

Thread overview: 14+ messages (download: mbox.gz follow: Atom feed
-- links below jump to the message on this page --
2009-10-29 22:59 Conexant CX20561 - Microphone problems Shawn Starr
2009-11-02 13:05 ` Takashi Iwai
2009-11-02 16:36   ` Shawn Starr
2009-11-03 10:55     ` Takashi Iwai
2009-11-03 19:30       ` Shawn Starr
2009-11-05  7:47         ` Takashi Iwai
2009-11-05  8:48           ` Shawn Starr
2009-11-05  9:09             ` Shawn Starr
2009-11-05  9:26               ` Shawn Starr
2009-11-05 10:16                 ` Takashi Iwai
     [not found]                   ` <200911050634.36742.shawn.starr@rogers.com>
2009-11-05 11:42                     ` Takashi Iwai
2009-11-05 10:15             ` Takashi Iwai
2011-04-18 23:40       ` Shawn Starr
2011-04-19  6:44         ` Takashi Iwai

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