Public bug reported:

Lenovo ThinkBook 14s G2
1. Boot to windows (ah yes, I'm still using windows for something that's not 
fully supported by Ubuntu).
2. Restart, boot to Ubuntu.
3. Got no sound, except just a cool "sssssssshreck" sound when it has to be a 
sound, only a short sound although I'm about to play a long audio. Probably 
each time playback is activated the short "sssssssshreck" sound is produced.
4. Restart, boot to Ubuntu again.
5. It is not fixed yet.

However the playback works if I fully turn the computer off and then
turn it on again, instead of restarting.

ProblemType: Bug
DistroRelease: Ubuntu 20.04
Package: alsa-base 1.0.25+dfsg-0ubuntu5
ProcVersionSignature: Ubuntu 5.8.0-48.54~20.04.1-generic 5.8.18
Uname: Linux 5.8.0-48-generic x86_64
ApportVersion: 2.20.11-0ubuntu27.16
Architecture: amd64
AudioDevicesInUse:
 USER        PID ACCESS COMMAND
 /dev/snd/controlC0:  fikr4n     1519 F.... pulseaudio
CasperMD5CheckResult: skip
CurrentDesktop: ubuntu:GNOME
Date: Thu Mar 25 11:34:59 2021
InstallationDate: Installed on 2021-03-17 (7 days ago)
InstallationMedia: Ubuntu 20.04.2.0 LTS "Focal Fossa" - Release amd64 
(20210209.1)
PackageArchitecture: all
SourcePackage: alsa-driver
Symptom: audio
Symptom_AlsaPlaybackTest: ALSA playback test through plughw:sofhdadsp failed
Symptom_Card: sof-hda-dsp - sof-hda-dsp
Symptom_Jack: Speaker, Internal
Symptom_Type: None of the above
Title: [20VA, Realtek ALC287, Speaker, Internal] Playback problem
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 03/03/2021
dmi.bios.release: 1.38
dmi.bios.vendor: LENOVO
dmi.bios.version: F9CN38WW
dmi.board.asset.tag: No Asset Tag
dmi.board.name: LNVNB161216
dmi.board.vendor: LENOVO
dmi.board.version: SDK0Q55726 WIN
dmi.chassis.asset.tag: No Asset Tag
dmi.chassis.type: 10
dmi.chassis.vendor: LENOVO
dmi.chassis.version: ThinkBook 14s G2 ITL
dmi.ec.firmware.release: 1.37
dmi.modalias: 
dmi:bvnLENOVO:bvrF9CN38WW:bd03/03/2021:br1.38:efr1.37:svnLENOVO:pn20VA:pvrThinkBook14sG2ITL:rvnLENOVO:rnLNVNB161216:rvrSDK0Q55726WIN:cvnLENOVO:ct10:cvrThinkBook14sG2ITL:
dmi.product.family: ThinkBook 14s G2 ITL
dmi.product.name: 20VA
dmi.product.sku: LENOVO_MT_20VA_BU_idea_FM_ThinkBook 14s G2 ITL
dmi.product.version: ThinkBook 14s G2 ITL
dmi.sys.vendor: LENOVO
mtime.conffile..etc.modprobe.d.alsa-base.conf: 2021-03-19T21:35:47.990357

** Affects: alsa-driver (Ubuntu)
     Importance: Undecided
         Status: New


** Tags: amd64 apport-bug focal

-- 
You received this bug notification because you are a member of Desktop
Packages, which is subscribed to alsa-driver in Ubuntu.
https://bugs.launchpad.net/bugs/1921317

Title:
  [20VA, Realtek ALC287, Speaker, Internal] Playback problem

Status in alsa-driver package in Ubuntu:
  New

Bug description:
  Lenovo ThinkBook 14s G2
  1. Boot to windows (ah yes, I'm still using windows for something that's not 
fully supported by Ubuntu).
  2. Restart, boot to Ubuntu.
  3. Got no sound, except just a cool "sssssssshreck" sound when it has to be a 
sound, only a short sound although I'm about to play a long audio. Probably 
each time playback is activated the short "sssssssshreck" sound is produced.
  4. Restart, boot to Ubuntu again.
  5. It is not fixed yet.

  However the playback works if I fully turn the computer off and then
  turn it on again, instead of restarting.

  ProblemType: Bug
  DistroRelease: Ubuntu 20.04
  Package: alsa-base 1.0.25+dfsg-0ubuntu5
  ProcVersionSignature: Ubuntu 5.8.0-48.54~20.04.1-generic 5.8.18
  Uname: Linux 5.8.0-48-generic x86_64
  ApportVersion: 2.20.11-0ubuntu27.16
  Architecture: amd64
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/controlC0:  fikr4n     1519 F.... pulseaudio
  CasperMD5CheckResult: skip
  CurrentDesktop: ubuntu:GNOME
  Date: Thu Mar 25 11:34:59 2021
  InstallationDate: Installed on 2021-03-17 (7 days ago)
  InstallationMedia: Ubuntu 20.04.2.0 LTS "Focal Fossa" - Release amd64 
(20210209.1)
  PackageArchitecture: all
  SourcePackage: alsa-driver
  Symptom: audio
  Symptom_AlsaPlaybackTest: ALSA playback test through plughw:sofhdadsp failed
  Symptom_Card: sof-hda-dsp - sof-hda-dsp
  Symptom_Jack: Speaker, Internal
  Symptom_Type: None of the above
  Title: [20VA, Realtek ALC287, Speaker, Internal] Playback problem
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 03/03/2021
  dmi.bios.release: 1.38
  dmi.bios.vendor: LENOVO
  dmi.bios.version: F9CN38WW
  dmi.board.asset.tag: No Asset Tag
  dmi.board.name: LNVNB161216
  dmi.board.vendor: LENOVO
  dmi.board.version: SDK0Q55726 WIN
  dmi.chassis.asset.tag: No Asset Tag
  dmi.chassis.type: 10
  dmi.chassis.vendor: LENOVO
  dmi.chassis.version: ThinkBook 14s G2 ITL
  dmi.ec.firmware.release: 1.37
  dmi.modalias: 
dmi:bvnLENOVO:bvrF9CN38WW:bd03/03/2021:br1.38:efr1.37:svnLENOVO:pn20VA:pvrThinkBook14sG2ITL:rvnLENOVO:rnLNVNB161216:rvrSDK0Q55726WIN:cvnLENOVO:ct10:cvrThinkBook14sG2ITL:
  dmi.product.family: ThinkBook 14s G2 ITL
  dmi.product.name: 20VA
  dmi.product.sku: LENOVO_MT_20VA_BU_idea_FM_ThinkBook 14s G2 ITL
  dmi.product.version: ThinkBook 14s G2 ITL
  dmi.sys.vendor: LENOVO
  mtime.conffile..etc.modprobe.d.alsa-base.conf: 2021-03-19T21:35:47.990357

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