The bug seemed to be fixed in 12/04 and is back in 12/10
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https://bugs.launchpad.net/bugs/863423
Title:
[USB-Audio - USB Device 0x46d:0x81a, recording] Device shows up in the
mixer's "hardware" tab, but its input is not in the "input" tab
Status in “alsa-driver” package in Ubuntu:
Confirmed
Bug description:
When i plug in this webcam (Logictech C260), alsa detects it properly and it
shows up as a second device in alsamixer with one input. It also shows up in
the "hardware" tab of the gnome mixer, but in the "input" tab only the input
from my HDA intel is shown.
It looks like a pulseaudio issue to me, because it's not in pavucontrol
either... and this is after pulseaudio failed to detect *any* device (input and
output), but i already rebooted and forgot to collect information for that bug
report :-/
ProblemType: Bug
DistroRelease: Ubuntu 11.10
Package: alsa-base 1.0.24+dfsg-0ubuntu2
ProcVersionSignature: Ubuntu 3.0.0-12.19-generic-pae 3.0.4
Uname: Linux 3.0.0-12-generic-pae i686
AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.24.
ApportVersion: 1.23-0ubuntu2
Architecture: i386
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/controlC0: riccardo 1677 F.... pulseaudio
/dev/snd/pcmC0D0c: riccardo 1677 F...m pulseaudio
Card0.Amixer.info:
Card hw:0 'Intel'/'HDA Intel at 0xf0800000 irq 43'
Mixer name : 'Intel IbexPeak HDMI'
Components : 'HDA:10ec0269,10250364,00100100
HDA:80862804,80860101,00100000'
Controls : 24
Simple ctrls : 13
Card1.Amixer.info:
Card hw:1 'U0x46d0x81a'/'USB Device 0x46d:0x81a at usb-0000:00:1d.0-1.2,
high speed'
Mixer name : 'USB Mixer'
Components : 'USB046d:081a'
Controls : 2
Simple ctrls : 1
Card1.Amixer.values:
Simple mixer control 'Mic',0
Capabilities: cvolume cvolume-joined cswitch cswitch-joined penum
Capture channels: Mono
Limits: Capture 0 - 6144
Mono: Capture 4001 [65%] [21.62dB] [on]
Date: Fri Sep 30 11:56:25 2011
InstallationMedia: Ubuntu 11.10 "Oneiric Ocelot" - Beta i386 (20110921.2)
PackageArchitecture: all
SourcePackage: alsa-driver
Symptom: audio
Symptom_AlsaRecordingPlaybackStderr: o p e n ( ) : N o s u c h f i l e
o r d i r e c t o r y
Symptom_AlsaRecordingTest: ALSA recording test through plughw:U0x46d0x81a
failed
Symptom_Card: 081a - USB Device 0x46d:0x81a
Symptom_Type: None of the above
Title: [USB-Audio - USB Device 0x46d:0x81a, recording] Recording problem
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 05/04/2010
dmi.bios.vendor: Phoenix Technologies LTD
dmi.bios.version: V1.13
dmi.board.asset.tag: No Asset Tag
dmi.board.name: Aspire 3820
dmi.board.vendor: Acer
dmi.board.version: V1.13
dmi.chassis.asset.tag: No Asset Tag
dmi.chassis.type: 10
dmi.chassis.vendor: Acer
dmi.chassis.version: V1.13
dmi.modalias:
dmi:bvnPhoenixTechnologiesLTD:bvrV1.13:bd05/04/2010:svnAcer:pnAspire3820:pvrV1.13:rvnAcer:rnAspire3820:rvrV1.13:cvnAcer:ct10:cvrV1.13:
dmi.product.name: Aspire 3820
dmi.product.version: V1.13
dmi.sys.vendor: Acer
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