Public bug reported:

yeah i dunno so if i turn on the computer and INSTANTLY RUN TO THE
SPEAKERS OR DO ANY SORT OF SOUND, it works for a few seconds and then
BAM mute

ProblemType: Bug
DistroRelease: Ubuntu 16.04
Package: alsa-base 1.0.25+dfsg-0ubuntu5
ProcVersionSignature: Ubuntu 4.8.0-58.63~16.04.1-generic 4.8.17
Uname: Linux 4.8.0-58-generic x86_64
NonfreeKernelModules: nvidia_uvm nvidia_drm nvidia_modeset nvidia
ApportVersion: 2.20.1-0ubuntu2.6
Architecture: amd64
AudioDevicesInUse:
 USER        PID ACCESS COMMAND
 /dev/snd/pcmC0D0p:   robert     1436 F...m pulseaudio
 /dev/snd/controlC0:  robert     1436 F.... pulseaudio
CurrentDesktop: Unity
Date: Sun Jul  9 02:51:30 2017
InstallationDate: Installed on 2017-05-15 (54 days ago)
InstallationMedia: Ubuntu 16.04.2 LTS "Xenial Xerus" - Release amd64 
(20170215.2)
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:   robert     1436 F...m pulseaudio
 /dev/snd/controlC0:  robert     1436 F.... pulseaudio
Symptom_Jack: Speaker, Internal
Symptom_Type: No sound at all
Title: [Satellite S70-A-K6M, Conexant CX20756, Speaker, Internal] No sound at 
all
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 04/30/2013
dmi.bios.vendor: Insyde Corp.
dmi.bios.version: 1.00
dmi.board.asset.tag: Type2 - Board Asset Tag
dmi.board.name: Type2 - Board Product Name1
dmi.board.vendor: Type2 - Board Vendor Name1
dmi.board.version: Type2 - Board Version
dmi.chassis.asset.tag: No Asset Tag
dmi.chassis.type: 10
dmi.chassis.vendor: OEM Chassis Manufacturer
dmi.chassis.version: OEM Chassis Version
dmi.modalias: 
dmi:bvnInsydeCorp.:bvr1.00:bd04/30/2013:svnTOSHIBA:pnSatelliteS70-A-K6M:pvrPSKN6R-00T00RRU:rvnType2-BoardVendorName1:rnType2-BoardProductName1:rvrType2-BoardVersion:cvnOEMChassisManufacturer:ct10:cvrOEMChassisVersion:
dmi.product.name: Satellite S70-A-K6M
dmi.product.version: PSKN6R-00T00RRU
dmi.sys.vendor: TOSHIBA

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


** Tags: amd64 apport-bug xenial

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https://bugs.launchpad.net/bugs/1703154

Title:
  [Satellite S70-A-K6M, Conexant CX20756, Speaker, Internal] No sound at
  all

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