Public bug reported:
When connecting external USB headphones, only headphones speakers appear
as an option to output audio, but Microphone only appears internal.
After executing "pulsaudio -k" microphone appears.
Sometimes (could be unrelated) when external HDMI connector the audio
HDMI output do not appear. I once solve it Suspending the laptop and
bringing it back again, then the correct Audio Output options appear.
ProblemType: Bug
DistroRelease: Ubuntu 14.04
Package: alsa-base 1.0.25+dfsg-0ubuntu4
Uname: Linux 3.16.0-031600-generic x86_64
ApportVersion: 2.14.1-0ubuntu3.5
Architecture: amd64
CurrentDesktop: Unity
Date: Thu Nov 27 09:06:40 2014
EcryptfsInUse: Yes
InstallationDate: Installed on 2014-05-31 (179 days ago)
InstallationMedia: Ubuntu 14.04 LTS "Trusty Tahr" - Release amd64 (20140417)
PackageArchitecture: all
SourcePackage: alsa-driver
Symptom: audio
Symptom_AlsaRecordingTest: ALSA recording test through plughw:C420 successful
Symptom_Card: Plantronics C420 - Plantronics C420
Symptom_PulseAudioRecordingTest: PulseAudio recording test through plughw:C420
failed
Symptom_Type: Only some of inputs are working
Title: [USB-Audio - Plantronics C420, recording] Recording problem
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 11/12/2013
dmi.bios.vendor: Dell Inc.
dmi.bios.version: A07
dmi.board.name: 0845MX
dmi.board.vendor: Dell Inc.
dmi.board.version: A00
dmi.chassis.type: 8
dmi.chassis.vendor: Dell Inc.
dmi.chassis.version: A07
dmi.modalias:
dmi:bvnDellInc.:bvrA07:bd11/12/2013:svnDellInc.:pnInspiron5537:pvrA07:rvnDellInc.:rn0845MX:rvrA00:cvnDellInc.:ct8:cvrA07:
dmi.product.name: Inspiron 5537
dmi.product.version: A07
dmi.sys.vendor: Dell Inc.
** Affects: alsa-driver (Ubuntu)
Importance: Undecided
Status: New
** Tags: amd64 apport-bug trusty
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https://bugs.launchpad.net/bugs/1397029
Title:
[USB-Audio - Plantronics C420, recording] Headphone Mic do not appear
after connect
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