On Tue, Jan 20, 2009 at 2:12 AM, Paul Hartman <paul.hartman+gentoo@xxxxxxxxx> wrote: > On Mon, Jan 19, 2009 at 8:17 PM, Paul Hartman > <paul.hartman+gentoo@xxxxxxxxx> wrote: >> Hi, >> >> A few days ago I got a Dell SP2309W monitor. It has a built in webcam >> and microphone. The video part of the webcam works fine, but I'm >> unable to get audio through the usual apps such as Skype (I have a >> Logitech webcam that also uses usb-audio and it works fine). >> >> cat /proc/asound/cards shows: >> >> 0 [NVidia ]: HDA-Intel - HDA NVidia >> HDA NVidia at 0xefff0000 irq 21 >> 1 [Webcam ]: USB-Audio - Monitor Webcam >> OmniVision Technologies, Inc.538-2640-08.09.09.1 >> Monitor Webcam at usb-0000:00: >> >> 0 is obviously my onboard sound, which is working and has always >> worked fine. So, it appears to be detected at least. Furthermore, >> "alsamixer -c 1" shows input volume controls for this card. So I'm not >> sure why it isn't working. Before checking if it's a problem in the >> application, I wanted to check to be sure it's really working (or >> merely detected). >> >> What's the suggested way of verifying that recording input from this >> device is working? lsusb -vv for this device is located at >> http://pastebin.com/f4c340014 >> >> /proc/asound/version shows "Advanced Linux Sound Architecture Driver >> Version 1.0.18rc3". I'm using linux kernel 2.6.28 with the gentoo >> patch set. >> >> If there is any other info needed or any suggestion of what I can try >> next I'd appreciate it. I've googled and tried everything I can think >> of. The other webcam just worked without any trouble. >> >> Thanks, >> Paul >> > > Here is the difference in output of arecord for onboard sound vs webcam sound: > > $ arecord --device=default:CARD=NVidia test > Recording WAVE 'test' : Unsigned 8 bit, Rate 8000 Hz, Mono > ^CAborted by signal Interrupt... > > $ arecord --device=default:CARD=Webcam test > 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 > > Happens both as root and normal user, so I don't think it is a > permissions issue. > > Thanks, > Paul > Here are my previous posts about SP2309W for reference. ------------------------------------------------------------------------------ Stay on top of everything new and different, both inside and around Java (TM) technology - register by April 22, and save $200 on the JavaOne (SM) conference, June 2-5, 2009, San Francisco. 300 plus technical and hands-on sessions. Register today. Use priority code J9JMT32. http://p.sf.net/sfu/p _______________________________________________ Alsa-user mailing list Alsa-user@xxxxxxxxxxxxxxxxxxxxx https://lists.sourceforge.net/lists/listinfo/alsa-user
