[Aspire E5-574G, Realtek ALC255, Mic, Internal] No sound at all

[Anuj Upadhyay]

The mic is not working. I even tried my headphone mic, thinking it might be a hardware problem, but even that didn't help.

ProblemType: Bug
DistroRelease: Ubuntu 18.04
Package: alsa-base 1.0.25+dfsg-0ubuntu5
ProcVersionSignature: Ubuntu 4.15.0-33.36-generic 4.15.18
Uname: Linux 4.15.0-33-generic x86_64
ApportVersion: 2.20.9-0ubuntu7.2
Architecture: amd64
AudioDevicesInUse:
 USER PID ACCESS COMMAND
 /dev/snd/pcmC0D0c: anuj 1324 F...m pulseaudio
 /dev/snd/controlC0: anuj 1324 F.... pulseaudio
CurrentDesktop: ubuntu:GNOME
Date: Mon Aug 27 10:38:36 2018
InstallationDate: Installed on 2018-07-31 (26 days ago)
InstallationMedia: Ubuntu 18.04 LTS "Bionic Beaver" - Release amd64 (20180426)
PackageArchitecture: all
ProcEnviron:
 TERM=xterm-256color
 PATH=(custom, no user)
 XDG_RUNTIME_DIR=<set>
 LANG=en_IN
 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_DevicesInUse:
 USER PID ACCESS COMMAND
 /dev/snd/pcmC0D0c: anuj 1324 F...m pulseaudio
 /dev/snd/controlC0: gdm 929 F.... pulseaudio
                      anuj 1324 F.... pulseaudio
Symptom_Jack: Mic, Internal
Symptom_Type: No sound at all
Title: [Aspire E5-574G, Realtek ALC255, Mic, Internal] No sound at all
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 08/28/2015
dmi.bios.vendor: Insyde Corp.
dmi.bios.version: V1.03
dmi.board.asset.tag: Type2 - Board Asset Tag
dmi.board.name: Zoro_SL
dmi.board.vendor: Acer
dmi.board.version: V1.03
dmi.chassis.type: 10
dmi.chassis.vendor: Chassis Manufacturer
dmi.chassis.version: Chassis Version
dmi.modalias: dmi:bvnInsydeCorp.:bvrV1.03:bd08/28/2015:svnAcer:pnAspireE5-574G:pvrV1.03:rvnAcer:rnZoro_SL:rvrV1.03:cvnChassisManufacturer:ct10:cvrChassisVersion:
dmi.product.family: SKL
dmi.product.name: Aspire E5-574G
dmi.product.version: V1.03
dmi.sys.vendor: Acer