Microphone is not working

[Mihaly Bako]

Microphone is not working on ASUS X552L laptop.

Just installed latest ubuntu version 16.04 LTS

After installed Skype, tried a test call, sound was very low volume. Tried to adjust microphone volume with the slider, mic went dead for good, no sound at all. tried to reinstall alsa package

apt-get remove --purge alsa-base pulseaudio

and install it again, nothing works.

Did not work on older ubuntu version either.

Description: Ubuntu 16.04 LTS
Release: 16.04

alsa-base:
  Telepítve: 1.0.25+dfsg-0ubuntu5
  Jelölt: 1.0.25+dfsg-0ubuntu5
  Verziótáblázat:
 *** 1.0.25+dfsg-0ubuntu5 500
        500 http://hu.archive.ubuntu.com/ubuntu xenial/main amd64 Packages
        500 http://hu.archive.ubuntu.com/ubuntu xenial/main i386 Packages
        100 /var/lib/dpkg/status

pulseaudio:
  Telepítve: 1:8.0-0ubuntu3
  Jelölt: 1:8.0-0ubuntu3
  Verziótáblázat:
 *** 1:8.0-0ubuntu3 500
        500 http://hu.archive.ubuntu.com/ubuntu xenial/main amd64 Packages
        100 /var/lib/dpkg/status

ProblemType: Bug
DistroRelease: Ubuntu 16.04
Package: pulseaudio 1:8.0-0ubuntu3
ProcVersionSignature: Ubuntu 4.4.0-21.37-generic 4.4.6
Uname: Linux 4.4.0-21-generic x86_64
ApportVersion: 2.20.1-0ubuntu2
Architecture: amd64
AudioDevicesInUse:
 USER PID ACCESS COMMAND
 /dev/snd/controlC0: irma 1425 F.... pulseaudio
 /dev/snd/pcmC1D0c: irma 1425 F...m pulseaudio
 /dev/snd/controlC1: irma 1425 F.... pulseaudio
CurrentDesktop: Unity
Date: Fri Apr 22 18:17:49 2016
InstallationDate: Installed on 2016-04-22 (0 days ago)
InstallationMedia: Ubuntu 16.04 LTS "Xenial Xerus" - Release amd64 (20160420.1)
SourcePackage: pulseaudio
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 06/26/2014
dmi.bios.vendor: American Megatrends Inc.
dmi.bios.version: X550LA.509
dmi.board.asset.tag: ATN12345678901234567
dmi.board.name: X550LA
dmi.board.vendor: ASUSTeK COMPUTER INC.
dmi.board.version: 1.0
dmi.chassis.asset.tag: ATN12345678901234567
dmi.chassis.type: 10
dmi.chassis.vendor: ASUSTeK COMPUTER INC.
dmi.chassis.version: 1.0
dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvrX550LA.509:bd06/26/2014:svnASUSTeKCOMPUTERINC.:pnX550LA:pvr1.0:rvnASUSTeKCOMPUTERINC.:rnX550LA:rvr1.0:cvnASUSTeKCOMPUTERINC.:ct10:cvr1.0:
dmi.product.name: X550LA
dmi.product.version: 1.0
dmi.sys.vendor: ASUSTeK COMPUTER INC.

[Steve (cheeto-crunch)]

@Mihaly, Do you by chance have pci=nomsi set as a boot option? I have this issue on my ASUS X555UB and the only way it will boot is with that option. I don't know if it is related but just in case... Thanks.

[simzy39 (sims39)]

I've a Lenovo Flex 3, and the mic does not work with a fresh install of Ubuntu 17.10. I had to instal PulseAudioVolumeControl and move the 'From Left' setting all the way left, and keep the 'From Right' setting higher in order for it to work.

But then Chrome autoadjusts the internal mic volume when I do any conferencing in the browser.
See: https://askubuntu.com/questions/967674/how-do-i-stop-audiopulsevolumecontrol-auto-adjusting-itself-so-my-mic-works

Here Chrome blames Ubuntu: https://bugs.chromium.org/p/chromium/issues/detail?id=435112&can=2&start=0&num=100&q=&colspec=ID%20Pri%20M%20Stars%20ReleaseBlock%20Component%20Status%20Owner%20Summary%20OS%20Modified&groupby=&sort=