Public bug reported:

I just install Ubuntu 20.04 (I had LinuxMint before) I have the ound for
a while then, for no reason, no more sound. I have to listen with my
earphones (USB)

ProblemType: Bug
DistroRelease: Ubuntu 20.04
Package: alsa-base 1.0.25+dfsg-0ubuntu5
ProcVersionSignature: Ubuntu 5.4.0-42.46-generic 5.4.44
Uname: Linux 5.4.0-42-generic x86_64
ApportVersion: 2.20.11-0ubuntu27.4
Architecture: amd64
AudioDevicesInUse:
 USER        PID ACCESS COMMAND
 /dev/snd/controlC2:  aliennux   1841 F.... pulseaudio
 /dev/snd/controlC0:  aliennux   1841 F.... pulseaudio
 /dev/snd/controlC1:  aliennux   1841 F.... pulseaudio
CasperMD5CheckResult: skip
CurrentDesktop: ubuntu:GNOME
Date: Wed Aug  5 00:28:26 2020
InstallationDate: Installed on 2020-08-03 (1 days ago)
InstallationMedia: Ubuntu 20.04 LTS "Focal Fossa" - Release amd64 (20200423)
PackageArchitecture: all
ProcEnviron:
 LANGUAGE=fr_CA:fr
 PATH=(custom, no user)
 XDG_RUNTIME_DIR=<set>
 LANG=fr_CA.UTF-8
 SHELL=/bin/bash
SourcePackage: alsa-driver
Symptom: audio
Symptom_Card: Audio interne - HDA Intel PCH
Symptom_Jack: Line In, Internal
Symptom_Type: Sound works for a while, then breaks
Title: [M17xR4, Creative CA0132, Line In, Internal] fails after a while
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 05/17/2013
dmi.bios.vendor: Alienware
dmi.bios.version: A12
dmi.board.name: M17xR4
dmi.board.vendor: Alienware
dmi.board.version: A12
dmi.chassis.type: 8
dmi.chassis.vendor: Alienware
dmi.chassis.version: A12
dmi.modalias: 
dmi:bvnAlienware:bvrA12:bd05/17/2013:svnAlienware:pnM17xR4:pvrA12:rvnAlienware:rnM17xR4:rvrA12:cvnAlienware:ct8:cvrA12:
dmi.product.family: 103C_5335KV
dmi.product.name: M17xR4
dmi.product.sku: M17xR4
dmi.product.version: A12
dmi.sys.vendor: Alienware

** Affects: alsa-driver (Ubuntu)
     Importance: Undecided
         Status: New


** Tags: amd64 apport-bug focal

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https://bugs.launchpad.net/bugs/1890373

Title:
  [M17xR4, Creative CA0132, Line In, Internal] fails after a while

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