Public bug reported:
On 22 March, 2020 I ran the latest update as requested by the computer. After
rebooting, as requested, I no longer have sound & the only sound output is
"Dummy Output".
No sound card is detected but i have a Multimedia Audio Controller Intel Corp
Device 9dc8(rev30) installed.
After running Ubuntu-bug in terminal I get:
ProblemType: Bug
DistroRelease: Ubuntu 18.04.4
Package: alsa-base 1.0.25+dfsg-Oubuntu5
Apport Version: 2.20.9-Obuntu7.12
Manufacturer: Acer
Product Name: Swift SF314-56
Product Version: V1.10
ProblemType: Bug
DistroRelease: Ubuntu 18.04
Package: alsa-base 1.0.25+dfsg-0ubuntu5
ProcVersionSignature: Ubuntu 5.3.0-42.34~18.04.1-generic 5.3.18
Uname: Linux 5.3.0-42-generic x86_64
ApportVersion: 2.20.9-0ubuntu7.12
Architecture: amd64
AudioDevicesInUse: Error: command ['fuser', '-v', '/dev/snd/seq',
'/dev/snd/timer'] failed with exit code 1:
CurrentDesktop: ubuntu:GNOME
Date: Tue Mar 24 11:25:53 2020
InstallationDate: Installed on 2019-09-18 (188 days ago)
InstallationMedia: Ubuntu 18.04.3 LTS "Bionic Beaver" - Release amd64 (20190805)
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
Title: PCI/internal sound card not detected
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 02/22/2019
dmi.bios.vendor: Insyde Corp.
dmi.bios.version: V1.10
dmi.board.name: Strongbow_WL
dmi.board.vendor: WL
dmi.board.version: V1.10
dmi.chassis.type: 10
dmi.chassis.vendor: Acer
dmi.chassis.version: V1.10
dmi.modalias:
dmi:bvnInsydeCorp.:bvrV1.10:bd02/22/2019:svnAcer:pnSwiftSF314-56:pvrV1.10:rvnWL:rnStrongbow_WL:rvrV1.10:cvnAcer:ct10:cvrV1.10:
dmi.product.family: Swift 3
dmi.product.name: Swift SF314-56
dmi.product.sku: 0000000000000000
dmi.product.version: V1.10
dmi.sys.vendor: Acer
** Affects: alsa-driver (Ubuntu)
Importance: Undecided
Status: New
** Tags: amd64 apport-bug bionic
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https://bugs.launchpad.net/bugs/1868782
Title:
PCI/internal sound card not detected "dummy output"
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