Some additional information.
Running << sudo alsactl init >> yielded syntax errors in the file
/usr/share/alsa/init/default. At several lines in the file, the braces were
mismatched: Eg,
ENV{has_pmaster_vol}=="true",CTL{values)="100%",GOTO="headphone0_end"
I fixed those errors, after which alsactl init produced the following
errors:
{{{
Home directory /home/cwb not ours.
Unknown hardware: "HDA-Intel" "SigmaTel STAC9200"
"HDA:83847690,102801d8,00102201 HDA:14f12bfa,14f100c3,00090000" "" ""
Hardware is initialized using a guess method
/usr/share/alsa/init/default:51: control element not found
/usr/share/alsa/init/default:52: control element not found
/usr/share/alsa/init/default:53: control element not found
}}}
--
After upgrade to Karmic, _alsactl kernel process segfault on boot -- no sound
https://bugs.launchpad.net/bugs/481680
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