No audio output on MCP61 Nvidia. [p6714y, Realtek Generic, Green Line Out, Rear] Pulseaudio fails to detect card

[Mark Smith]

I have no audio output with the following configuration:

  *-multimedia
          description: Audio device
          product: MCP61 High Definition Audio
          vendor: NVIDIA Corporation
          physical id: 5
          bus info: pci@0000:00:05.0
          version: a2
          width: 32 bits
          clock: 66MHz
          capabilities: bus_master cap_list
          configuration: driver=snd_hda_intel latency=0 maxlatency=5 mingnt=2
          resources: irq:21 memory:fbff8000-fbffbfff

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/hwC0D0', '/dev/snd/pcmC0D2c', '/dev/snd/pcmC0D0c', '/dev/snd/pcmC0D0p', '/dev/snd/controlC0', '/dev/snd/seq', '/dev/snd/timer'] failed with exit code 1:
CurrentDesktop: XFCE
Date: Mon Mar 13 18:56:40 2017
InstallationDate: Installed on 2017-02-07 (34 days ago)
InstallationMedia: Ubuntu 16.04.1 LTS "Xenial Xerus" - Release amd64 (20160719)
ProcEnviron:
 LANGUAGE=en_US
 TERM=xterm-256color
 PATH=(custom, no user)
 LANG=en_US.UTF-8
 SHELL=/bin/bash
SourcePackage: pulseaudio
Symptom: audio
Symptom_Card: HDA-Intel - HDA NVidia
Symptom_Jack: Green Line Out, Rear
Title: [p6714y, Realtek Generic, Green Line Out, Rear] Pulseaudio fails to detect card
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 09/29/2010
dmi.bios.vendor: American Megatrends Inc.
dmi.bios.version: 6.01
dmi.board.name: 2A6C
dmi.board.vendor: PEGATRON CORPORATION
dmi.board.version: 5.00
dmi.chassis.asset.tag: 3CR0510YC1
dmi.chassis.type: 3
dmi.chassis.vendor: Hewlett-Packard
dmi.chassis.version: Chassis Version
dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvr6.01:bd09/29/2010:svnHewlett-Packard:pnp6714y:pvr:rvnPEGATRONCORPORATION:rn2A6C:rvr5.00:cvnHewlett-Packard:ct3:cvrChassisVersion:
dmi.product.name: p6714y
dmi.sys.vendor: Hewlett-Packard

[Mark Smith (norstar39)]

This turned out to be a problem with the user not being in the audio and pulse-access groups. Also the back panel speaker out only has one channel working, however the front panel headphone connector works fine. So I just use the front panel headphone jack.