[Bug 1879989] Re: "Failed to play sound: No such driver" ubuntu 20.04

I had the same problem after upgrade to 20.04
Setting / Sound / Output / Test produced no sound.

Pressing the test button resulted in an error in syslog:

gnome-control-c: Failed to play sound: No such driver

libcanberra-pulse was missing:
apt search libcanberra

libcanberra-pulse/focal 0.30-7ubuntu1 amd64
PulseAudio backend for libcanberra

Installed via sudo apt install libcanberra-pulse

Problem resolved.

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https://bugs.launchpad.net/bugs/1879989

Title:
"Failed to play sound: No such driver" ubuntu 20.04

Status in linux package in Ubuntu:
Confirmed

Bug description:
my speakers- built in audio produces terrible sound
I tested the speakers via settings/sound and there was no sound
I checked gnome logs and found "Failed to play sound: No such driver"
I checked online and it seams to be a problem that affects many users

ProblemType: Bug
DistroRelease: Ubuntu 20.04
Package: linux-image-5.4.0-31-generic 5.4.0-31.35
ProcVersionSignature: Ubuntu 5.4.0-31.35-generic 5.4.34
Uname: Linux 5.4.0-31-generic x86_64
ApportVersion: 2.20.11-0ubuntu27
Architecture: amd64
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/controlC0: regern 70802 F.... pulseaudio
/dev/snd/pcmC0D0c: regern 70802 F...m pulseaudio
/dev/snd/pcmC0D0p: regern 70802 F...m pulseaudio
CasperMD5CheckResult: skip
CurrentDesktop: ubuntu:GNOME
Date: Thu May 21 19:13:55 2020
InstallationDate: Installed on 2020-05-16 (5 days ago)
InstallationMedia: Ubuntu 20.04 LTS "Focal Fossa" - Release amd64 (20200423)
MachineType: Dell Inc. Inspiron 15-3552
ProcFB: 0 i915drmfb
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-5.4.0-31-generic root=UUID=55652357-023b-4633-8d3a-46ce1a22d378 ro quiet splash vt.handoff=7
RelatedPackageVersions:
linux-restricted-modules-5.4.0-31-generic N/A
linux-backports-modules-5.4.0-31-generic N/A
linux-firmware 1.187
SourcePackage: linux
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 03/06/2018
dmi.bios.vendor: Dell Inc.
dmi.bios.version: 4.4.0
dmi.board.name: 079W3P
dmi.board.vendor: Dell Inc.
dmi.board.version: A00
dmi.chassis.type: 8
dmi.chassis.vendor: Dell Inc.
dmi.chassis.version: Not Specified
dmi.modalias: dmi:bvnDellInc.:bvr4.4.0:bd03/06/2018:svnDellInc.:pnInspiron15-3552:pvr4.4.0:rvnDellInc.:rn079W3P:rvrA00:cvnDellInc.:ct8:cvrNotSpecified:
dmi.product.family: Inspiron
dmi.product.name: Inspiron 15-3552
dmi.product.sku: 06AC
dmi.product.version: 4.4.0
dmi.sys.vendor: Dell Inc.

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