Internal microphone does not work due to phase inversion
Affects | Status | Importance | Assigned to | Milestone | |
---|---|---|---|---|---|
pulseaudio (Ubuntu) |
New
|
Undecided
|
Unassigned |
Bug Description
PulseAudio detects internal microphone but cannot receive any sound from it.
WORK-AROUND:
Issue command: $ pactl set-source-volume 1 0% 100%
or
"Install the pavucontrol application, start it and go to the "Input Devices" tab. Unlock the channels (there is a keylock icon), then mute the right channel while keeping the left channel at the volume you want.
If the internal mic is now working correctly, you have an inverted internal mic, so that your right channel cancels out the left one."
source: https:/
ProblemType: Bug
DistroRelease: Ubuntu 16.04
Package: pulseaudio 1:8.0-0ubuntu3
ProcVersionSign
Uname: Linux 4.4.0-38-generic x86_64
ApportVersion: 2.20.1-0ubuntu2.1
Architecture: amd64
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/
Date: Thu Oct 6 10:47:52 2016
InstallationDate: Installed on 2016-10-05 (1 days ago)
InstallationMedia: Ubuntu 16.04.1 LTS "Xenial Xerus" - Release amd64 (20160719)
SourcePackage: pulseaudio
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 03/15/2016
dmi.bios.vendor: LENOVO
dmi.bios.version: D5CN46WW
dmi.board.
dmi.board.name: VIUU4
dmi.board.vendor: LENOVO
dmi.board.version: SDK0J40700 WIN
dmi.chassis.
dmi.chassis.type: 10
dmi.chassis.vendor: LENOVO
dmi.chassis.
dmi.modalias: dmi:bvnLENOVO:
dmi.product.name: 80QH
dmi.product.
dmi.sys.vendor: LENOVO