Public bug reported:
Crackling sound on headphones.
Sometimes sound is good after reboot and fails after some time or after
suspend
ProblemType: Bug
DistroRelease: Ubuntu 20.04
Package: alsa-base 1.0.25+dfsg-0ubuntu5
ProcVersionSignature: Ubuntu 5.4.0-91.102-generic 5.4.151
Uname: Linux 5.4.0-91-generic x86_64
ApportVersion: 2.20.11-0ubuntu27.21
Architecture: amd64
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/controlC0: arturo 7203 F.... pulseaudio
/dev/snd/pcmC0D0c: arturo 7203 F...m pulseaudio
/dev/snd/pcmC0D0p: arturo 7203 F...m pulseaudio
/dev/snd/timer: arturo 7203 f.... pulseaudio
CasperMD5CheckResult: skip
CurrentDesktop: ubuntu:GNOME
Date: Tue Dec 28 20:10:43 2021
InstallationDate: Installed on 2020-12-28 (365 days ago)
InstallationMedia: Ubuntu 18.04.4 LTS "Bionic Beaver" - Release amd64
(20200203.1)
PackageArchitecture: all
ProcEnviron:
TERM=xterm-256color
PATH=(custom, no user)
XDG_RUNTIME_DIR=<set>
LANG=en_US.UTF-8
SHELL=/bin/bash
SourcePackage: alsa-driver
Symptom: audio
Symptom_AlsaPlaybackTest: ALSA playback test through plughw:PCH failed
Symptom_Card: Built-in Audio - HDA Intel PCH
Symptom_Jack: Black Headphone Out, Left
Symptom_PulseAudioLog:
Dec 28 18:32:06 arturo-HP-Pavilion-Laptop-15-cs0xxx dbus-daemon[1101]:
[system] Activating via systemd: service name='org.freedesktop.RealtimeKit1'
unit='rtkit-daemon.service' requested by ':1.31' (uid=121 pid=1346
comm="/usr/bin/pulseaudio --daemonize=no --log-target=jo" label="unconfined")
Dec 28 18:33:01 arturo-HP-Pavilion-Laptop-15-cs0xxx systemd[1329]:
pulseaudio.service: Succeeded.
Dec 28 18:33:11 arturo-HP-Pavilion-Laptop-15-cs0xxx systemd[1329]:
pulseaudio.socket: Succeeded.
Symptom_Type: Underruns, dropouts, or "crackling" sound
Title: [HP Pavilion Laptop 15-cs0xxx, Realtek ALC295, Black Headphone Out,
Left] Underruns, dropouts or crackling sound
UpgradeStatus: Upgraded to focal on 2021-06-01 (210 days ago)
dmi.bios.date: 07/06/2018
dmi.bios.vendor: Insyde
dmi.bios.version: F.04
dmi.board.asset.tag: Type2 - Board Asset Tag
dmi.board.name: 84BE
dmi.board.vendor: HP
dmi.board.version: 02.12
dmi.chassis.type: 10
dmi.chassis.vendor: HP
dmi.chassis.version: Chassis Version
dmi.modalias:
dmi:bvnInsyde:bvrF.04:bd07/06/2018:svnHP:pnHPPavilionLaptop15-cs0xxx:pvrType1ProductConfigId:rvnHP:rn84BE:rvr02.12:cvnHP:ct10:cvrChassisVersion:
dmi.product.family: 103C_5335KV HP Pavilion
dmi.product.name: HP Pavilion Laptop 15-cs0xxx
dmi.product.sku: 5GP03UA#ABA
dmi.product.version: Type1ProductConfigId
dmi.sys.vendor: HP
mtime.conffile..etc.modprobe.d.alsa-base.conf: 2021-12-28T18:31:00.020746
** Affects: alsa-driver (Ubuntu)
Importance: Undecided
Status: New
** Tags: amd64 apport-bug focal
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https://bugs.launchpad.net/bugs/1955943
Title:
[HP Pavilion Laptop 15-cs0xxx, Realtek ALC295, Black Headphone Out,
Left] Underruns, dropouts or crackling sound
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