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 ------------------------------------------------------------------------------ This SF.net email is sponsored by: SourcForge Community SourceForge wants to tell your story. http://p.sf.net/sfu/sf-spreadtheword _______________________________________________ Alsa-user mailing list Alsa-user@xxxxxxxxxxxxxxxxxxxxx https://lists.sourceforge.net/lists/listinfo/alsa-user
