Public bug reported:
I had this problem a week or so ago and fixed it with some patch, or
some kill-switch, or something...and now it's back and I don't know how
to fix it. It seems to be a popular problem with 12.04 or the drivers?
I'm on a lenovo u300s...
ProblemType: Bug
DistroRelease: Ubuntu 12.04
Package: alsa-base 1.0.25+dfsg-0ubuntu1
ProcVersionSignature: Ubuntu 3.2.0-24.37-u300acpifix1-generic-pae 3.2.14
Uname: Linux 3.2.0-24.37-u300acpifix1-generic-pae i686
AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.24.
ApportVersion: 2.0.1-0ubuntu7
Architecture: i386
ArecordDevices:
**** List of CAPTURE Hardware Devices ****
card 0: PCH [HDA Intel PCH], device 0: CONEXANT Analog [CONEXANT Analog]
Subdevices: 1/1
Subdevice #0: subdevice #0
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/controlC0: tim 1842 F.... pulseaudio
Card0.Amixer.info:
Card hw:0 'PCH'/'HDA Intel PCH at 0xf7e00000 irq 49'
Mixer name : 'Intel CougarPoint HDMI'
Components : 'HDA:14f1506e,17aa5003,00100002
HDA:80862805,17aa5003,00100000'
Controls : 14
Simple ctrls : 6
Date: Fri May 11 02:22:26 2012
EcryptfsInUse: Yes
InstallationMedia: Ubuntu 12.04 LTS "Precise Pangolin" - Release i386 (20120423)
PackageArchitecture: all
ProcEnviron:
TERM=xterm
PATH=(custom, user)
LANG=en_US.UTF-8
SHELL=/bin/bash
SourcePackage: alsa-driver
Symptom: audio
Symptom_AlsaRecordingTest: ALSA recording test through plughw:PCH failed
Symptom_Card: Built-in Audio - HDA Intel PCH
Symptom_Jack: Mic, Internal
Symptom_Type: None of the above
Title: [1080, Conexant CX20590, Mic, Internal] Recording problem
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 01/09/2012
dmi.bios.vendor: LENOVO
dmi.bios.version: 56CN42WW
dmi.board.asset.tag: ATN12345678901234567
dmi.board.name: U300s
dmi.board.vendor: LENOVO
dmi.board.version: 1.0
dmi.chassis.asset.tag: No Asset Tag
dmi.chassis.type: 10
dmi.chassis.vendor: LENOVO
dmi.chassis.version: Lenovo IdeaPad U300s
dmi.modalias:
dmi:bvnLENOVO:bvr56CN42WW:bd01/09/2012:svnLENOVO:pn1080:pvrLenovoIdeaPadU300s:rvnLENOVO:rnU300s:rvr1.0:cvnLENOVO:ct10:cvrLenovoIdeaPadU300s:
dmi.product.name: 1080
dmi.product.version: Lenovo IdeaPad U300s
dmi.sys.vendor: LENOVO
** Affects: ubuntu
Importance: Undecided
Status: New
** Tags: apport-bug i386 precise
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https://bugs.launchpad.net/bugs/997914
Title:
Microphone does not pick up sound
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