Public bug reported:
I updated from Karmic to Lucid, and my external mic has stopped working
since. I tried the advices of several forums, tweaked with the model
parameter in /etc/modprobe.d/alsa-base.conf, tweaked with alsamixer but
nothing has worked.
One point of concern- capture tab in alsamixer shows 2 'ext mics' one of
which is just dummy; it does not have any volume slider. I can't mute
that. Don't know if that mic is being used whenever I try to record.
Soun recorder records only noise.
Here is my amixer output.
Simple mixer control 'Master',0
Capabilities: pvolume pswitch pswitch-joined penum
Playback channels: Front Left - Front Right
Limits: Playback 0 - 43
Mono:
Front Left: Playback 43 [100%] [0.00dB] [on]
Front Right: Playback 43 [100%] [0.00dB] [on]
Simple mixer control 'PCM',0
Capabilities: pvolume pswitch penum
Playback channels: Front Left - Front Right
Limits: Playback 0 - 20
Mono:
Front Left: Playback 20 [100%] [0.00dB] [on]
Front Right: Playback 20 [100%] [0.00dB] [on]
Simple mixer control 'IEC958',0
Capabilities: pswitch pswitch-joined penum
Playback channels: Mono
Mono: Playback [off]
Simple mixer control 'IEC958 Default PCM',0
Capabilities: pswitch pswitch-joined penum
Playback channels: Mono
Mono: Playback [off]
Simple mixer control 'Digital',0
Capabilities: cvolume penum
Capture channels: Front Left - Front Right
Limits: Capture 0 - 120
Front Left: Capture 120 [100%] [30.00dB]
Front Right: Capture 120 [100%] [30.00dB]
Simple mixer control 'Ext Mic',0
Capabilities: pvolume cvolume pswitch cswitch penum
Playback channels: Front Left - Front Right
Capture channels: Front Left - Front Right
Limits: Playback 0 - 20 Capture 0 - 23
Front Left: Playback 20 [100%] [0.00dB] [on] Capture 23 [100%] [34.50dB] [on]
Front Right: Playback 20 [100%] [0.00dB] [on] Capture 23 [100%] [34.50dB] [on]
Simple mixer control 'ExtMic',0
Capabilities: cswitch cswitch-joined cswitch-exclusive penum
Capture exclusive group: 0
Capture channels: Mono
Mono: Capture [on]
Simple mixer control 'Int Mic',0
Capabilities: pvolume cvolume pswitch cswitch penum
Playback channels: Front Left - Front Right
Capture channels: Front Left - Front Right
Limits: Playback 0 - 20 Capture 0 - 23
Front Left: Playback 20 [100%] [0.00dB] [on] Capture 23 [100%] [34.50dB] [off]
Front Right: Playback 20 [100%] [0.00dB] [on] Capture 23 [100%] [34.50dB]
[off]
Simple mixer control 'IntMic',0
Capabilities: cswitch cswitch-joined cswitch-exclusive penum
Capture exclusive group: 0
Capture channels: Mono
Mono: Capture [off]
Please let me know if you need more information. And I am very much in
need of help. I don't want to get back to Karmic again.
ProblemType: Bug
DistroRelease: Ubuntu 10.04
Package: alsa-base 1.0.22.1+dfsg-0ubuntu3
ProcVersionSignature: Ubuntu 2.6.32-22.33-generic 2.6.32.11+drm33.2
Uname: Linux 2.6.32-22-generic i686
NonfreeKernelModules: wl
AlsaVersion:
Advanced Linux Sound Architecture Driver Version 1.0.22.1.
Compiled on Apr 29 2010 for kernel 2.6.32-22-generic (SMP).
Architecture: i386
ArecordDevices:
**** List of CAPTURE Hardware Devices ****
card 0: Intel [HDA Intel], device 0: CONEXANT Analog [CONEXANT Analog]
Subdevices: 1/1
Subdevice #0: subdevice #0
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/controlC0: arindam 4315 F.... pulseaudio
arindam 4388 F.... mixer_applet2
Card0.Amixer.info:
Card hw:0 'Intel'/'HDA Intel at 0xd8240000 irq 26'
Mixer name : 'Conexant CX20549 (Venice)'
Components : 'HDA:14f15045,103c30bb,00100100'
Controls : 19
Simple ctrls : 9
Date: Sun May 16 22:13:44 2010
PackageArchitecture: all
ProcEnviron:
LANGUAGE=en_US:en
PATH=(custom, no user)
LANG=en_US.utf8
SHELL=/bin/bash
SelectedCard: 0 Intel HDA-Intel - HDA Intel
SourcePackage: alsa-driver
Symptom: audio
Title: [Conexant CX20549 (Venice)] Recording problem
dmi.bios.date: 11/13/2007
dmi.bios.vendor: Hewlett-Packard
dmi.bios.version: F.29
dmi.board.name: 30BB
dmi.board.vendor: Quanta
dmi.board.version: 66.40
dmi.chassis.type: 10
dmi.chassis.vendor: Quanta
dmi.chassis.version: N/A
dmi.modalias:
dmi:bvnHewlett-Packard:bvrF.29:bd11/13/2007:svnHewlett-Packard:pnPresarioV6000(GG228PA#ACJ):pvrRev1:rvnQuanta:rn30BB:rvr66.40:cvnQuanta:ct10:cvrN/A:
dmi.product.name: Presario V6000 (GG228PA#ACJ)
dmi.product.version: Rev 1
dmi.sys.vendor: Hewlett-Packard
** Affects: alsa-driver (Ubuntu)
Importance: Undecided
Status: New
** Tags: apport-bug i386 lucid
--
[Conexant CX20549 (Venice)] Recording problem
https://bugs.launchpad.net/bugs/581546
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