** Summary changed:

- [80SM, Conexant CX20751/2, Speaker, Internal] No sound at all
+ [80SM, Conexant CX20751/2, Speaker, Internal] No sound from speakers, but 
headphones work

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https://bugs.launchpad.net/bugs/1654857

Title:
  [80SM, Conexant CX20751/2, Speaker, Internal] No sound from speakers,
  but headphones work

Status in alsa-driver package in Ubuntu:
  New

Bug description:
  No sound at all, but on my headphones work correctly

  ProblemType: Bug
  DistroRelease: Ubuntu 16.04
  Package: alsa-base 1.0.25+dfsg-0ubuntu5
  ProcVersionSignature: Ubuntu 4.4.0-57.78-generic 4.4.35
  Uname: Linux 4.4.0-57-generic x86_64
  NonfreeKernelModules: nvidia_uvm nvidia_drm nvidia_modeset nvidia
  ApportVersion: 2.20.1-0ubuntu2.4
  Architecture: amd64
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/pcmC0D0p:   dejan      2719 F...m pulseaudio
   /dev/snd/controlC0:  dejan      2719 F.... pulseaudio
  CurrentDesktop: Unity
  Date: Sun Jan  8 15:36:09 2017
  InstallationDate: Installed on 2016-12-23 (16 days ago)
  InstallationMedia: Ubuntu 16.04.1 LTS "Xenial Xerus" - Release amd64 
(20160719)
  PackageArchitecture: all
  SourcePackage: alsa-driver
  Symptom: audio
  Symptom_AlsaPlaybackTest: ALSA playback test through plughw:PCH failed
  Symptom_Card: Built-in Audio - HDA Intel PCH
  Symptom_DevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/pcmC0D0p:   dejan      2719 F...m pulseaudio
   /dev/snd/controlC0:  dejan      2719 F.... pulseaudio
  Symptom_Jack: Speaker, Internal
  Symptom_Type: No sound at all
  Title: [80SM, Conexant CX20751/2, Speaker, Internal] No sound at all
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 03/21/2016
  dmi.bios.vendor: LENOVO
  dmi.bios.version: 0XCN23WW
  dmi.board.asset.tag: NO Asset Tag
  dmi.board.name: Toronto 5A2
  dmi.board.vendor: LENOVO
  dmi.board.version: NO DPK
  dmi.chassis.asset.tag: NO Asset Tag
  dmi.chassis.type: 10
  dmi.chassis.vendor: LENOVO
  dmi.chassis.version: Lenovo ideapad 310-15ISK
  dmi.modalias: 
dmi:bvnLENOVO:bvr0XCN23WW:bd03/21/2016:svnLENOVO:pn80SM:pvrLenovoideapad310-15ISK:rvnLENOVO:rnToronto5A2:rvrNODPK:cvnLENOVO:ct10:cvrLenovoideapad310-15ISK:
  dmi.product.name: 80SM
  dmi.product.version: Lenovo ideapad 310-15ISK
  dmi.sys.vendor: LENOVO

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