Public bug reported:
During this test, an error dialog was thrown, reading:
The following mixer control(s) might be incorrectly set:
Mic is at 0.0%
Mic is muted
Please try to fix that (e g by running
"alsamixer -D hw:PCH" in a terminal) and see if that solves the problem.
Would you like to continue troubleshooting anyway?
However, the System Settings... -> Sound UI shows the mic as not muted.
When I tried running the alsamixer command, I saw mic and mic-boost were
both showing 0; I cranked them up to 100, but it made no difference. I
also tried re-running this command with the mic/mic-boost still set to
100 and it threw the same error.
ProblemType: Bug
DistroRelease: Ubuntu 14.04
Package: alsa-base 1.0.25+dfsg-0ubuntu4
ProcVersionSignature: Ubuntu 3.13.0-45.74-generic 3.13.11-ckt13
Uname: Linux 3.13.0-45-generic x86_64
ApportVersion: 2.14.1-0ubuntu3.6
Architecture: amd64
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/controlC1: doctorow 2636 F.... pulseaudio
/dev/snd/pcmC1D0c: doctorow 2636 F...m pulseaudio
/dev/snd/pcmC1D0p: doctorow 2636 F...m pulseaudio
/dev/snd/controlC0: doctorow 2636 F.... pulseaudio
CurrentDesktop: Unity
Date: Mon Jan 26 16:20:49 2015
InstallationDate: Installed on 2014-09-10 (138 days ago)
InstallationMedia: Ubuntu 14.04.1 LTS "Trusty Tahr" - Release amd64 (20140722.2)
PackageArchitecture: all
SourcePackage: alsa-driver
Symptom: audio
Symptom_AlsaRecordingTest: ALSA recording test through plughw:PCH failed
Symptom_AlsaRecordingTestStderr: a r e c o r d : p c m _ r e a d : 2 0 3 1 :
r e a d e r r o r : I n p u t / o u t p u t e r r o r
Symptom_Card: Built-in Audio - HDA Intel PCH
Symptom_DevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/controlC1: doctorow 2636 F.... pulseaudio
/dev/snd/pcmC1D0c: doctorow 2636 F...m pulseaudio
/dev/snd/pcmC1D0p: doctorow 2636 F...m pulseaudio
/dev/snd/controlC0: doctorow 2636 F.... pulseaudio
Symptom_Jack: Black Mic, Left
Symptom_Type: No sound at all
Title: [20ALCTO1WW, Realtek ALC292, Black Mic, Left] No sound at all
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 06/24/2014
dmi.bios.vendor: LENOVO
dmi.bios.version: GIET75WW (2.25 )
dmi.board.asset.tag: Not Available
dmi.board.name: 20ALCTO1WW
dmi.board.vendor: LENOVO
dmi.board.version: 0B98401 PRO
dmi.chassis.asset.tag: No Asset Information
dmi.chassis.type: 10
dmi.chassis.vendor: LENOVO
dmi.chassis.version: Not Available
dmi.modalias:
dmi:bvnLENOVO:bvrGIET75WW(2.25):bd06/24/2014:svnLENOVO:pn20ALCTO1WW:pvrThinkPadX240:rvnLENOVO:rn20ALCTO1WW:rvr0B98401PRO:cvnLENOVO:ct10:cvrNotAvailable:
dmi.product.name: 20ALCTO1WW
dmi.product.version: ThinkPad X240
dmi.sys.vendor: LENOVO
mtime.conffile..etc.modprobe.d.alsa.base.conf: 2015-01-22T13:36:22.741441
** Affects: alsa-driver (Ubuntu)
Importance: Undecided
Status: New
** Tags: amd64 apport-bug trusty
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https://bugs.launchpad.net/bugs/1414706
Title:
[20ALCTO1WW, Realtek ALC292, Black Mic, Left] No sound at all
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