Bug#668470: alsa-base: Intel Corporation 82801I (ICH9 Family) HD Audio microphone not working (squeeze stable)

Package: alsa-base
Version: 1.0.23+dfsg-2
Severity: normal


Ever since I installed Debian squeeze on my laptop (Thinkpad T400) the
internal microphone did not work.
I tried to tweak the volume settings via alsamixer, no sound coming out.
Tested recording with arecord or audacity, no sound at all.
Also the recording volume level meter on audacity did not indicate any
signal at all coming from the microphone (whether it is internal mic or
external one plugged via the analog mic jack).
Some people gave up and simply used PulseAudio, e.g.

http://forums.debian.net/viewtopic....87#p429287

but I think this error should be resolved so user can use plain ALSA for
the sound system if so desired.

I have tried kernel 2.6.38-bpo and 3.2.0-bpo and in both the mic did not
seem to work.

Wirawan

Begin additional package status
Desired=Unknown/Install/Remove/Purge/Hold
| Status=Not/Inst/Conf-files/Unpacked/halF-conf/Half-inst/trig-aWait/Trig-pend
|/ Err?=(none)/Reinst-required (Status,Err: uppercase=bad)
||/ Name Version Description
+++-==-==-=ii libasound2 1.0.23-2.1 shared library for ALSA applications
End additional package status
Begin /proc/asound/version
Advanced Linux Sound Architecture Driver Version 1.0.24.
End /proc/asound/version
Begin /proc/asound/cards
0 [Intel ]: HDA-Intel - HDA Intel
HDA Intel at 0xfc020000 irq 48
29 [ThinkPadEC ]: ThinkPad EC - ThinkPad Console Audio Control
ThinkPad Console Audio Control at EC reg 0x30, fw 7VHT12WW-1.01
End /proc/asound/cards
Begin /dev/snd/ listing
total 0
drwxr-xr-x 2 root root 80 Mar 29 12:10 by-path
crw-rw-+ 1 root audio 116, 7 Mar 29 12:10 controlC0
crw-rw-+ 1 root audio 116, 2 Mar 29 12:10 controlC29
crw-rw-+ 1 root audio 116, 6 Mar 29 12:10 hwC0D0
crw-rw-+ 1 root audio 116, 5 Mar 29 12:10 hwC0D1
crw-rw-+ 1 root audio 116, 4 Apr 11 23:13 pcmC0D0c
crw-rw-+ 1 root audio 116, 3 Apr 11 23:13 pcmC0D0p
crw-rw-+ 1 root audio 116, 1 Mar 29 12:10 seq
crw-rw-+ 1 root audio 116, 33 Mar 29 12:10 timer
End /dev/snd/ listing

Debian Release: 6.0.4
APT prefers stable-updates
APT policy: (990, 'stable-updates'), (500, 'stable'), (50, 'testing')
Architecture: amd64 (x86_64)

Kernel: Linux 3.2.0-0.bpo.2-amd64 (SMP w/2 CPU cores)
Locale: LANG=en_US.utf8, LC_CTYPE=en_US.utf8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash

Versions of packages alsa-base depends on:
ii linux-sound-base 1.0.23+dfsg-2 base package for ALSA and OSS soun
ii lsof 4.81.dfsg.1-1 List open files
ii module-init-tools 3.12-2 tools for managing Linux kernel mo
ii udev 164-3 /dev/ and hotplug management daemo

Versions of packages alsa-base recommends:
ii alsa-utils 1.0.23-3 Utilities for configuring and usin

Versions of packages alsa-base suggests:
pn alsa-oss <none> (no description available)
ii apmd 3.2.2-14 Utilities for Advanced Power Manag
pn oss-compat <none> (no description available)

Versions of packages libasound2 depends on:
ii libc6 2.11.3-3 Embedded GNU C Library: Shared lib




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