2007-07-15

Audio Problems on HP Pavilian a220n under Debian Linux

This is an excerpt from the output of the lsmod command run under KNOPPIX on an HP Pavilion a220n desktop computer:

snd_intel8x0           31260  3
snd_ac97_codec         88352  1 snd_intel8x0
8250_pnp               12288  0
snd_ac97_bus            6016  1 snd_ac97_codec
snd_pcm_oss            38176  0
snd_mixer_oss          17536  1 snd_pcm_oss
snd_pcm                73220  4 snd_intel8x0,snd_ac97_codec,snd_pcm_oss
snd_timer              22148  2 snd_pcm
shpchp                 37032  0
i2c_nforce2             9856  0
snd                    44768  10 snd_intel8x0,snd_ac97_codec,snd_pcm_oss,snd_mixer_oss,snd_pcm,snd_timer

For some reason neither KNOPPIX 5.0.1 nor the Debian install to the hard disk [provided by the KNOPPIX LiveCD via the knoppix-installer command] seem to be able to get the audio input functionality of the sound card working.

Audio output works okay when the Sound System is enabled via the KNOPPIX control panel, but does not appear to work under the Debian instantiation of KDE.

No version numbers captured yet from the Debian kernel, or the versions of KDE involved (which are different between the Debian install (with updates) and the KNOPPIX distro.