2008/1/18, Takashi Iwai <tiwai@xxxxxxx>: > At Fri, 18 Jan 2008 17:50:38 +0100, > Christophe Osuna wrote: > > > > 2008/1/18, Takashi Iwai <tiwai@xxxxxxx>: > > > Looks like your board disables the third ADC. The driver probes it > > > and the codec returns it's no audio-input widget. Check codec#* proc > > > output. > > > > > > > I have copied the contents of /proc/asound/card0/codec#2 at the end of > > this message. Notice that there are three nodes (0x07, 0x08 and 0x09) > > which claim to support PCM input. > > Ah, then it's in patch_realtek.c where alc880_pcm_analog_capture > claims substreams = 2. Feel free to fix it. OK. That's not the kind of things I want to try on a Friday before leaving work, so I will try that next week and report results here. > > The same nodes I mentionned above (0x07, 0x08 and 0x09 in > > /proc/asound/card0/codec#2) show no support for 8 kHz sample rate. > > This is confirmed by the failing calls to > > snd_pcm_hw_params_set_rate(). > > Then actually the codec doesn't support 8kHz. Or, at least, the > hardware vendor doesn't want it to work on 8kHz by any reason. > > Of course, you can try to override in the driver, but it's definitely > at your own risk... I think it is worth trying (same patch_realtek.c file, isn't it?). In the worst case we will use a software resampler (8 kHz <-> 48 kHz shouldn't be too difficult), but I would prefer leaving that to the codec. _______________________________________________ Alsa-devel mailing list Alsa-devel@xxxxxxxxxxxxxxxx http://mailman.alsa-project.org/mailman/listinfo/alsa-devel
