[XPS 13 9370, Realtek ALC3271, Speaker, Internal] No sound at all

[Francis Mulvey]

playback sound off after lock/sleep. settings output shows audio detection from playback, but no sound from speakers. setting speaker test also does not (ever) work.

ProblemType: Bug
DistroRelease: Ubuntu 20.04
Package: alsa-base 1.0.25+dfsg-0ubuntu5
ProcVersionSignature: Ubuntu 5.4.0-122.138-generic 5.4.192
Uname: Linux 5.4.0-122-generic x86_64
ApportVersion: 2.20.11-0ubuntu27.24
Architecture: amd64
AudioDevicesInUse:
 USER PID ACCESS COMMAND
 /dev/snd/controlC0: fmulvey 2530 F.... pulseaudio
 /dev/snd/pcmC0D0c: fmulvey 2530 F...m pulseaudio
 /dev/snd/pcmC0D0p: fmulvey 2530 F...m pulseaudio
CasperMD5CheckResult: skip
CurrentDesktop: ubuntu:GNOME
Date: Tue Jul 19 14:57:56 2022
InstallationDate: Installed on 2018-11-24 (1332 days ago)
InstallationMedia: Ubuntu 18.04 "Bionic" - Build amd64 LIVE Binary 20180608-09:38
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
Symptom_AlsaPlaybackTest: ALSA playback test through plughw:PCH successful
Symptom_Card: Built-in Audio - HDA Intel PCH
Symptom_DevicesInUse:
 USER PID ACCESS COMMAND
 /dev/snd/controlC0: fmulvey 2530 F.... pulseaudio
 /dev/snd/pcmC0D0c: fmulvey 2530 F...m pulseaudio
 /dev/snd/pcmC0D0p: fmulvey 2530 F...m pulseaudio
Symptom_Jack: Speaker, Internal
Symptom_PulsePlaybackTest: PulseAudio playback test successful
Symptom_Type: No sound at all
Title: [XPS 13 9370, Realtek ALC3271, Speaker, Internal] No sound at all
UpgradeStatus: Upgraded to focal on 2020-10-22 (634 days ago)
dmi.bios.date: 06/06/2022
dmi.bios.vendor: Dell Inc.
dmi.bios.version: 1.20.0
dmi.board.name: 0F6P3V
dmi.board.vendor: Dell Inc.
dmi.board.version: A00
dmi.chassis.type: 10
dmi.chassis.vendor: Dell Inc.
dmi.modalias: dmi:bvnDellInc.:bvr1.20.0:bd06/06/2022:svnDellInc.:pnXPS139370:pvr:rvnDellInc.:rn0F6P3V:rvrA00:cvnDellInc.:ct10:cvr:
dmi.product.family: XPS
dmi.product.name: XPS 13 9370
dmi.product.sku: 07E6
dmi.sys.vendor: Dell Inc.