You have been subscribed to a public bug:
Updating the kernel from 4.15.0-91-generic to 4.15.0-99-generic caused
all audio playback and recording to stop. Reverting to the old kernel
corrects the problem.
ProblemType: Bug
DistroRelease: Ubuntu 18.04
Package: alsa-base 1.0.25+dfsg-0ubuntu5
ProcVersionSignature: Ubuntu 4.15.0-99.100-generic 4.15.18
Uname: Linux 4.15.0-99-generic x86_64
ApportVersion: 2.20.9-0ubuntu7.14
Architecture: amd64
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/pcmC0D0p: etzhaim 1677 F...m pulseaudio
/dev/snd/controlC0: etzhaim 1677 F.... pulseaudio
CurrentDesktop: ubuntu:GNOME
Date: Sun May 3 23:59:43 2020
EcryptfsInUse: Yes
InstallationDate: Installed on 2018-02-08 (815 days ago)
InstallationMedia: Ubuntu 17.10 "Artful Aardvark" - Release amd64 (20180105.1)
PackageArchitecture: all
SourcePackage: alsa-driver
Symptom: audio
Symptom_AlsaPlaybackTest: ALSA playback test through plughw:PCH failed
Symptom_Card: Built-in Audio - HDA Intel PCH
Symptom_DevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/pcmC0D0p: etzhaim 1677 F...m pulseaudio
/dev/snd/controlC0: gdm 1245 F.... pulseaudio
etzhaim 1677 F.... pulseaudio
Symptom_Type: No sound at all
Title: [HDA-Intel - HDA Intel PCH, playback] No sound at all
UpgradeStatus: Upgraded to bionic on 2018-05-08 (726 days ago)
dmi.bios.date: 05/09/2019
dmi.bios.vendor: Dell Inc.
dmi.bios.version: 1.12.0
dmi.board.name: 09NT72
dmi.board.vendor: Dell Inc.
dmi.board.version: A00
dmi.chassis.type: 10
dmi.chassis.vendor: Dell Inc.
dmi.modalias:
dmi:bvnDellInc.:bvr1.12.0:bd05/09/2019:svnDellInc.:pnInspiron5379:pvr:rvnDellInc.:rn09NT72:rvrA00:cvnDellInc.:ct10:cvr:
dmi.product.family: Inspiron
dmi.product.name: Inspiron 5379
dmi.sys.vendor: Dell Inc.
** Affects: linux (Ubuntu)
Importance: Undecided
Status: New
** Tags: amd64 apport-bug bionic
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[HDA-Intel - HDA Intel PCH, playback] No sound output/recording at all
https://bugs.launchpad.net/bugs/1876629
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