[Vostro 3559, Intel Skylake HDMI, Digital Out, HDMI] Pulseaudio fails to detect card

[Gaurav Rawat]

no sound coming from speakers after I upgraded to ubuntu 16.04 .

ProblemType: Bug
DistroRelease: Ubuntu 16.04
Package: pulseaudio 1:8.0-0ubuntu3.2
ProcVersionSignature: Ubuntu 4.4.0-66.87-generic 4.4.44
Uname: Linux 4.4.0-66-generic x86_64
ApportVersion: 2.20.1-0ubuntu2.5
Architecture: amd64
AudioDevicesInUse: Error: command ['fuser', '-v', '/dev/snd/by-path', '/dev/snd/hwC0D2', '/dev/snd/hwC0D0', '/dev/snd/pcmC0D8p', '/dev/snd/pcmC0D7p', '/dev/snd/pcmC0D3p', '/dev/snd/pcmC0D0c', '/dev/snd/pcmC0D0p', '/dev/snd/controlC0', '/dev/snd/seq', '/dev/snd/timer'] failed with exit code 1:
CurrentDesktop: Unity
Date: Mon Mar 13 21:50:27 2017
DistributionChannelDescriptor:
 # This is a distribution channel descriptor
 # For more information see http://wiki.ubuntu.com/DistributionChannelDescriptor
 canonical-oem-somerville-trusty-amd64-osp1-20150720-0
InstallationDate: Installed on 2016-05-19 (297 days ago)
InstallationMedia: Ubuntu 14.04 "Trusty" - Build amd64 LIVE Binary 20150720-04:06
SourcePackage: pulseaudio
Symptom: audio
Symptom_Card: HDA-Intel - HDA Intel PCH
Symptom_Jack: Digital Out, HDMI
Title: [Vostro 3559, Intel Skylake HDMI, Digital Out, HDMI] Pulseaudio fails to detect card
UpgradeStatus: Upgraded to xenial on 2017-02-26 (14 days ago)
dmi.bios.date: 01/12/2016
dmi.bios.vendor: Dell Inc.
dmi.bios.version: 1.1.6
dmi.board.name: 047TR1
dmi.board.vendor: Dell Inc.
dmi.board.version: A00
dmi.chassis.type: 9
dmi.chassis.vendor: Dell Inc.
dmi.modalias: dmi:bvnDellInc.:bvr1.1.6:bd01/12/2016:svnDellInc.:pnVostro3559:pvr:rvnDellInc.:rn047TR1:rvrA00:cvnDellInc.:ct9:cvr:
dmi.product.name: Vostro 3559
dmi.sys.vendor: Dell Inc.