[HP Compaq 6735s, Analog Devices AD1984A, Speaker, Internal] No sound at all

Tested sound with Flash or HTML5. Result no sound.

ProblemType: Bug
DistroRelease: Ubuntu 16.04
Package: pulseaudio 1:8.0-0ubuntu3
ProcVersionSignature: Ubuntu 4.4.0-21.37-generic 4.4.6
Uname: Linux 4.4.0-21-generic x86_64
NonfreeKernelModules: wl
ApportVersion: 2.20.1-0ubuntu2
Architecture: amd64
AudioDevicesInUse:
 USER PID ACCESS COMMAND
 /dev/snd/controlC0: rostandii 2478 F.... pulseaudio
CurrentDesktop: Unity
Date: Thu Apr 28 21:45:25 2016
InstallationDate: Installed on 2015-09-05 (236 days ago)
InstallationMedia: Ubuntu 15.04 "Vivid Vervet" - Release amd64 (20150422)
JournalErrors:
 Error: command ['journalctl', '-b', '--priority=warning', '--lines=1000'] failed with exit code 1: Hint: You are currently not seeing messages from other users and the system.
       Users in the 'systemd-journal' group can see all messages. Pass -q to
       turn off this notice.
 No journal files were opened due to insufficient permissions.
SourcePackage: pulseaudio
Symptom: audio
Symptom_AlsaPlaybackTest: ALSA playback test through plughw:SB successful
Symptom_Card: Built-in Audio - HDA ATI SB
Symptom_DevicesInUse:
 USER PID ACCESS COMMAND
 /dev/snd/controlC0: rostandii 2478 F.... pulseaudio
Symptom_Jack: Green Speaker, Internal
Symptom_PulsePlaybackTest: PulseAudio playback test failed
Symptom_Type: No sound at all
Title: [HP Compaq 6735s, Analog Devices AD1984A, Green Speaker, Internal] No sound at all
UpgradeStatus: Upgraded to xenial on 2016-04-24 (3 days ago)
dmi.bios.date: 10/02/2008
dmi.bios.vendor: Hewlett-Packard
dmi.bios.version: 68GPP Ver. F.06
dmi.board.asset.tag: Base Board Asset Tag
dmi.board.name: 30E4
dmi.board.vendor: Hewlett-Packard
dmi.board.version: KBC Version 94.1C
dmi.chassis.asset.tag: CNU842079D
dmi.chassis.type: 10
dmi.chassis.vendor: Hewlett-Packard
dmi.modalias: dmi:bvnHewlett-Packard:bvr68GPPVer.F.06:bd10/02/2008:svnHewlett-Packard:pnHPCompaq6735s:pvrF.06:rvnHewlett-Packard:rn30E4:rvrKBCVersion94.1C:cvnHewlett-Packard:ct10:cvr:
dmi.product.name: HP Compaq 6735s
dmi.product.version: F.06
dmi.sys.vendor: Hewlett-Packard