Public bug reported:
After installing an update (i can't remember which), i stopped hearing
sound from the system. It only showed that headphones were
connected(though they weren't), but even if i connected them, i could
still hear no sound. I installed PulseAudio, tried changing other
things, but nothing worked. I remember typing a command, though i cannot
remember it, and it doesn't appear in my terminal history(i think it is
in the bug description), and after that the sound appears to be playing
from "HDMI/DisplayPort".
Ubuntu 18.04.3 LTS
ProblemType: Bug
DistroRelease: Ubuntu 18.04
Package: alsa-base 1.0.25+dfsg-0ubuntu5
ProcVersionSignature: Ubuntu 5.0.0-37.40~18.04.1-generic 5.0.21
Uname: Linux 5.0.0-37-generic x86_64
ApportVersion: 2.20.9-0ubuntu7.9
Architecture: amd64
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/controlC0: ana 1682 F.... pulseaudio
CurrentDesktop: ubuntu:GNOME
Date: Sun Jan 26 11:21:04 2020
InstallationDate: Installed on 2019-08-02 (177 days ago)
InstallationMedia: Ubuntu 18.04.2 LTS "Bionic Beaver" - Release amd64 (20190210)
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/controlC0: ana 1682 F.... pulseaudio
Symptom_Type: No sound at all
Title: [HDA-Intel - HDA Intel PCH, playback] No sound at all
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 12/05/2018
dmi.bios.vendor: Dell Inc.
dmi.bios.version: 2.8.0
dmi.board.name: 0JTTXY
dmi.board.vendor: Dell Inc.
dmi.board.version: A00
dmi.chassis.type: 9
dmi.chassis.vendor: Dell Inc.
dmi.modalias:
dmi:bvnDellInc.:bvr2.8.0:bd12/05/2018:svnDellInc.:pnInspiron15-3567:pvr:rvnDellInc.:rn0JTTXY:rvrA00:cvnDellInc.:ct9:cvr:
dmi.product.family: Inspiron
dmi.product.name: Inspiron 15-3567
dmi.product.sku: 078C
dmi.sys.vendor: Dell Inc.
mtime.conffile..etc.modprobe.d.alsa-base.conf: 2019-08-22T15:47:18.564156
** Affects: alsa-driver (Ubuntu)
Importance: Undecided
Status: New
** Tags: amd64 apport-bug bionic
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https://bugs.launchpad.net/bugs/1860902
Title:
[HDA-Intel - HDA Intel PCH, playback] No sound at all
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