Please test kernel parameter "snd_hda_intel.model=inv-dmic".

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https://bugs.launchpad.net/bugs/1850702

Title:
  [Samsung Notebook 7 Pro, Realtek ALC256, headphone jack] Headphone
  sound is faint and distorted (but works fine in Windows)

Status in alsa-driver package in Ubuntu:
  Confirmed
Status in linux package in Ubuntu:
  Confirmed

Bug description:
  I can't get sound of my laptop (Samsung Notebook 7 Force) through the
  headphone jack. The speakers work fine.

  When I plug a headphone, I can hear the sound being played very
  faintly. If I bump the volume to the maximum, that is. The sound is
  very distorted, like a buzz effect being applied over it.

  I noticed that if I delete /.config/pulse the distortion goes away,
  but the sound remains very low. After some time, the buzzing effect
  comes back.

  ProblemType: Bug
  DistroRelease: Ubuntu 19.10
  Package: ubuntu-release-upgrader-core 1:19.10.15
  ProcVersionSignature: Ubuntu 5.3.0-19.20-generic 5.3.1
  Uname: Linux 5.3.0-19-generic x86_64
  NonfreeKernelModules: nvidia_modeset nvidia
  ApportVersion: 2.20.11-0ubuntu8.1
  Architecture: amd64
  CrashDB: ubuntu
  CurrentDesktop: KDE
  Date: Wed Oct 30 16:03:41 2019
  InstallationDate: Installed on 2019-10-29 (1 days ago)
  InstallationMedia: Kubuntu 19.10 "Eoan Ermine" - Release amd64 (20191017)
  PackageArchitecture: all
  SourcePackage: ubuntu-release-upgrader
  Symptom: dist-upgrade
  UpgradeStatus: No upgrade log present (probably fresh install)
  --- 
  ProblemType: Bug
  ApportVersion: 2.20.11-0ubuntu8.1
  Architecture: amd64
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/controlC0:  filipe     1294 F.... pulseaudio
  CurrentDesktop: KDE
  DistroRelease: Ubuntu 19.10
  InstallationDate: Installed on 2019-10-29 (1 days ago)
  InstallationMedia: Kubuntu 19.10 "Eoan Ermine" - Release amd64 (20191017)
  MachineType: SAMSUNG ELECTRONICS CO., LTD. 760XBE
  NonfreeKernelModules: nvidia_modeset nvidia
  Package: linux (not installed)
  ProcFB: 0 i915drmfb
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-5.3.0-19-generic 
root=UUID=c0332bcf-c9a8-4b67-9a6f-bf87cc7abdb8 ro quiet splash vt.handoff=7
  ProcVersionSignature: Ubuntu 5.3.0-19.20-generic 5.3.1
  RelatedPackageVersions:
   linux-restricted-modules-5.3.0-19-generic N/A
   linux-backports-modules-5.3.0-19-generic  N/A
   linux-firmware                            1.183.1
  Tags:  eoan
  Uname: Linux 5.3.0-19-generic x86_64
  UpgradeStatus: No upgrade log present (probably fresh install)
  UserGroups: adm cdrom dip lpadmin lxd plugdev sambashare sudo
  _MarkForUpload: True
  dmi.bios.date: 06/10/2019
  dmi.bios.vendor: American Megatrends Inc.
  dmi.bios.version: P02REZ.040.190610.FL
  dmi.board.asset.tag: No Asset Tag
  dmi.board.name: NP760XBE-XW1BR
  dmi.board.vendor: SAMSUNG ELECTRONICS CO., LTD.
  dmi.board.version: SGL9947A0Y-C01-G003-S0001+10.0.17763
  dmi.chassis.asset.tag: No Asset Tag
  dmi.chassis.type: 10
  dmi.chassis.vendor: SAMSUNG ELECTRONICS CO., LTD.
  dmi.chassis.version: N/A
  dmi.modalias: 
dmi:bvnAmericanMegatrendsInc.:bvrP02REZ.040.190610.FL:bd06/10/2019:svnSAMSUNGELECTRONICSCO.,LTD.:pn760XBE:pvrP02REZ:rvnSAMSUNGELECTRONICSCO.,LTD.:rnNP760XBE-XW1BR:rvrSGL9947A0Y-C01-G003-S0001+10.0.17763:cvnSAMSUNGELECTRONICSCO.,LTD.:ct10:cvrN/A:
  dmi.product.family: Notebook 7 Series
  dmi.product.name: 760XBE
  dmi.product.sku: SCAI-A5A5-A5A5-A5A5-PREZ
  dmi.product.version: P02REZ
  dmi.sys.vendor: SAMSUNG ELECTRONICS CO., LTD.
  --- 
  ProblemType: Bug
  ApportVersion: 2.20.11-0ubuntu8.1
  Architecture: amd64
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/controlC0:  filipe     1294 F.... pulseaudio
  CurrentDesktop: KDE
  DistroRelease: Ubuntu 19.10
  InstallationDate: Installed on 2019-10-29 (1 days ago)
  InstallationMedia: Kubuntu 19.10 "Eoan Ermine" - Release amd64 (20191017)
  MachineType: SAMSUNG ELECTRONICS CO., LTD. 760XBE
  NonfreeKernelModules: nvidia_modeset nvidia
  Package: linux (not installed)
  ProcFB: 0 i915drmfb
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-5.3.0-19-generic 
root=UUID=c0332bcf-c9a8-4b67-9a6f-bf87cc7abdb8 ro quiet splash vt.handoff=7
  ProcVersionSignature: Ubuntu 5.3.0-19.20-generic 5.3.1
  RelatedPackageVersions:
   linux-restricted-modules-5.3.0-19-generic N/A
   linux-backports-modules-5.3.0-19-generic  N/A
   linux-firmware                            1.183.1
  Tags:  eoan
  Uname: Linux 5.3.0-19-generic x86_64
  UpgradeStatus: No upgrade log present (probably fresh install)
  UserGroups: adm cdrom dip lpadmin lxd plugdev sambashare sudo
  _MarkForUpload: True
  dmi.bios.date: 06/10/2019
  dmi.bios.vendor: American Megatrends Inc.
  dmi.bios.version: P02REZ.040.190610.FL
  dmi.board.asset.tag: No Asset Tag
  dmi.board.name: NP760XBE-XW1BR
  dmi.board.vendor: SAMSUNG ELECTRONICS CO., LTD.
  dmi.board.version: SGL9947A0Y-C01-G003-S0001+10.0.17763
  dmi.chassis.asset.tag: No Asset Tag
  dmi.chassis.type: 10
  dmi.chassis.vendor: SAMSUNG ELECTRONICS CO., LTD.
  dmi.chassis.version: N/A
  dmi.modalias: 
dmi:bvnAmericanMegatrendsInc.:bvrP02REZ.040.190610.FL:bd06/10/2019:svnSAMSUNGELECTRONICSCO.,LTD.:pn760XBE:pvrP02REZ:rvnSAMSUNGELECTRONICSCO.,LTD.:rnNP760XBE-XW1BR:rvrSGL9947A0Y-C01-G003-S0001+10.0.17763:cvnSAMSUNGELECTRONICSCO.,LTD.:ct10:cvrN/A:
  dmi.product.family: Notebook 7 Series
  dmi.product.name: 760XBE
  dmi.product.sku: SCAI-A5A5-A5A5-A5A5-PREZ
  dmi.product.version: P02REZ
  dmi.sys.vendor: SAMSUNG ELECTRONICS CO., LTD.

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