Public bug reported:
Tried modifying /etc/pulse/default.pa with load-module module-udev-
detect tsched=0, but it didn't help. Was working fine in 18.04.
ProblemType: Bug
DistroRelease: Ubuntu 19.04
Package: alsa-base 1.0.25+dfsg-0ubuntu5
ProcVersionSignature: Ubuntu 5.0.0-16.17-generic 5.0.8
Uname: Linux 5.0.0-16-generic x86_64
ApportVersion: 2.20.10-0ubuntu27
Architecture: amd64
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/controlC0: ubuntu 10126 F.... pulseaudio
/dev/snd/pcmC0D0c: ubuntu 10126 F...m pulseaudio
/dev/snd/pcmC0D0p: ubuntu 10126 F...m pulseaudio
CurrentDesktop: ubuntu:GNOME
Date: Thu Jun 6 01:01:05 2019
InstallationDate: Installed on 2018-04-21 (410 days ago)
InstallationMedia: Ubuntu 17.10 "Artful Aardvark" - Release amd64 (20180105.1)
PackageArchitecture: all
ProcEnviron:
LANGUAGE=en_CA:en
PATH=(custom, no user)
XDG_RUNTIME_DIR=<set>
LANG=en_CA.UTF-8
SHELL=/bin/bash
SourcePackage: alsa-driver
Symptom: audio
Symptom_AlsaPlaybackTest: ALSA playback test through plughw:PCH successful
Symptom_Card: Built-in Audio - HDA Intel PCH
Symptom_Jack: Speaker, Internal
Symptom_PulsePlaybackTest: PulseAudio playback test successful
Symptom_Type: Underruns, dropouts, or "crackling" sound
Title: [1066AJU, Realtek ALC272, Speaker, Internal] Underruns, dropouts or
crackling sound
UpgradeStatus: Upgraded to disco on 2019-04-30 (36 days ago)
dmi.bios.date: 10/27/2011
dmi.bios.vendor: LENOVO
dmi.bios.version: 44CN43WW
dmi.board.asset.tag: Base Board Asset Tag
dmi.board.name: Emerald Lake
dmi.board.vendor: LENOVO
dmi.board.version: FAB1
dmi.chassis.asset.tag: Asset Tag
dmi.chassis.type: 10
dmi.chassis.vendor: LENOVO
dmi.chassis.version: 0.1
dmi.modalias:
dmi:bvnLENOVO:bvr44CN43WW:bd10/27/2011:svnLENOVO:pn1066AJU:pvrLenovoV570:rvnLENOVO:rnEmeraldLake:rvrFAB1:cvnLENOVO:ct10:cvr0.1:
dmi.product.family: HuronRiver System
dmi.product.name: 1066AJU
dmi.product.sku: System SKUNumber
dmi.product.version: Lenovo V570
dmi.sys.vendor: LENOVO
** Affects: alsa-driver (Ubuntu)
Importance: Undecided
Status: New
** Tags: amd64 apport-bug disco
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https://bugs.launchpad.net/bugs/1831849
Title:
[1066AJU, Realtek ALC272, Speaker, Internal] Underruns, dropouts or
crackling sound
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