On Sat, Jun 04, 2011 at 11:30:01AM +0200, Mick wrote: > On Friday 03 Jun 2011 21:10:29 meino.cra...@gmx.de wrote: > > > When i start alsamixer and select with the "soundcard"-selector > > the audio device of my usb cam ... alsamixer crashes with: > > > > cannot load mixer controls: Invalid argument > > > > > > ...still no sound via usb cam and it seems no chance to use alsamixer > > with it...damn...this /had/ worked and I dont know what it kills... > > > > mylinux:/home/user>aplay -l > > **** List of PLAYBACK Hardware Devices **** > > card 0: SB [HDA ATI SB], device 0: VT2020 Analog [VT2020 Analog] > > Subdevices: 2/2 > > Subdevice #0: subdevice #0 > > Subdevice #1: subdevice #1 > > card 0: SB [HDA ATI SB], device 1: VT2020 Digital [VT2020 Digital] > > Subdevices: 2/2 > > Subdevice #0: subdevice #0 > > Subdevice #1: subdevice #1 > > Your camera's sound card is not shown here (stating the obvious). > > Have you tried building it as a module and modprobe -v <driver> to see what > messages you get? > > > mylinux:/home/user>arecord -l > > **** List of CAPTURE Hardware Devices **** > > card 0: SB [HDA ATI SB], device 0: VT2020 Analog [VT2020 Analog] > > Subdevices: 2/2 > > Subdevice #0: subdevice #0 > > Subdevice #1: subdevice #1 > > card 1: CameraB404271 [USB Camera-B4.04.27.1], device 0: USB Audio [USB > > Audio] Subdevices: 1/1 > > Subdevice #0: subdevice #0 > [snip...] > > > > > !!Loaded ALSA modules > > !!------------------- > > > > > > > > I would suggest that you build alsa as modules at least for troubleshooting > purposes. I had to do that in the past to get things working in a box, > following the recommendation of the devs. >
I second that. For years I built the ALSA drivers into the kernel, but for some reason that started giving me trouble some months back and after switching to using modules instead it's back to being a carefree setup. -- caveat utilitor ♫ ❤ ♫ ❤ ♫ ❤ ♫ ❤
