[jammy regression] No sound from onboard audio (playback / record)

[Luis Alberto Pabón]

After updates I applied last friday, my onboard audio has ceased to function. No audio comes out the laptop speakers and no audio goes in the internal microphone (built in audio).

If I connect my bluetooth headset (Bose NC700) the audio works, but only ever in mono. I cannot switch to the A2DP sink, it stays on HPF mono.

I tried switching from pulseaudio to pipewire and pipewire-pulse, and I kind of made it work - the bluetooth headset works correctly, and the onboard audio works again after switching default inputs and outputs a number of times.

I just want to stress my laptop's audio has worked fine for years in all versions of ubuntu including Jammy, but only up until Friday Jan the 18th 2022.

ProblemType: Bug
DistroRelease: Ubuntu 22.04
Package: alsa-base 1.0.25+dfsg-0ubuntu7
ProcVersionSignature: Ubuntu 5.15.0-23.23-generic 5.15.27
Uname: Linux 5.15.0-23-generic x86_64
ApportVersion: 2.20.11-0ubuntu79
Architecture: amd64
CasperMD5CheckResult: unknown
CurrentDesktop: sway
Date: Mon Mar 21 11:48:25 2022
PackageArchitecture: all
SourcePackage: alsa-driver
UpgradeStatus: Upgraded to jammy on 2022-03-01 (20 days ago)
dmi.bios.date: 11/17/2019
dmi.bios.release: 1.18
dmi.bios.vendor: Dell Inc.
dmi.bios.version: 1.18.0
dmi.board.name: 05FFDN
dmi.board.vendor: Dell Inc.
dmi.board.version: A00
dmi.chassis.type: 10
dmi.chassis.vendor: Dell Inc.
dmi.modalias: dmi:bvnDellInc.:bvr1.18.0:bd11/17/2019:br1.18:svnDellInc.:pnXPS159560:pvr:rvnDellInc.:rn05FFDN:rvrA00:cvnDellInc.:ct10:cvr:sku07BE:
dmi.product.family: XPS
dmi.product.name: XPS 15 9560
dmi.product.sku: 07BE
dmi.sys.vendor: Dell Inc.