[alsa-devel] DELL SP2309W Monitor with Integrated microphone

[Takashi Iwai]

At Tue, 17 Mar 2009 02:24:29 -0700,
Jason Holmes wrote:
> 
> Hi all,
> I have a Dell SP2309W monitor which contains an integrated webcam and
> microphones.  I have been unable to get the integrated microphones to record
> any sound.  I ran utils_alsa-info.sh and the link with the results in posted
> below:
> http://www.alsa-project.org/db/?f=590e122a466ce09cd1f911ba7146a87df2b5cbeb
> The integrated microphone seems to be made by OmniVision Technologies.
> The results of running arecord -l are:
> **** List of CAPTURE Hardware Devices ****
> card 0: Intel [HDA Intel], device 0: CONEXANT Analog [CONEXANT Analog]
>   Subdevices: 1/1
>   Subdevice #0: subdevice #0
> card 1: Webcam [Monitor Webcam], device 0: USB Audio [USB Audio]
>   Subdevices: 1/1
>   Subdevice #0: subdevice #0
> card 2: default [USB Sound Device        ], device 0: USB Audio [USB Audio]
>   Subdevices: 1/1
>   Subdevice #0: subdevice #0
> and the results of arecord --device=default:CARD=Webcam test  are:
> ALSA lib pcm_direct.c:866:(snd1_pcm_direct_initialize_slave)
> snd_pcm_hw_params_any failed
> ALSA lib pcm_dsnoop.c:604:(snd_pcm_dsnoop_open) unable to initialize slave
> arecord: main:590: audio open error: Invalid argument

What about with "plughw:Webcam" ?
Anyway, please show contents of /proc/asound/card1/stream* and
"lsusb -v" output.


Takashi