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[Raymond <1319666@xxxxxxxxxxxxxxxxxx>]

The alternative is to disable multi channel support by hint multio=0 to
get back headphone volume control

Node 0x1b [Pin Complex] wcaps 0x40018f: Stereo Amp-In Amp-Out Control:
name="Headphone Playback Switch", index=0, device=0 ControlAmp: chs=3,
dir=Out, idx=0, ofs=0 Control: name="Front Headphone Jack", index=0,
device=0 Amp-In caps: ofs=0x00, nsteps=0x03, stepsize=0x27, mute=0 Amp-
In vals: [0x00 0x00] Amp-Out caps: ofs=0x00, nsteps=0x00, stepsize=0x00,
mute=1 Amp-Out vals: [0x00 0x00] Pincap 0x0000173c: IN OUT HP Detect
Vref caps: HIZ 50 GRD 80 Pin Default 0x02214020: [Jack] HP Out at Ext
Front Conn = 1/8, Color = Green DefAssociation = 0x2, Sequence = 0x0
Pin-ctls: 0xc0: OUT HP VREF_HIZ Unsolicited: tag=01, enabled=1
Connection: 2 0x0c* 0x0e

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https://bugs.launchpad.net/bugs/1319666

Title:
  [, Realtek ALC662 rev1, Green Headphone Out, Front] No sound at all

Status in alsa-driver package in Ubuntu:
  Confirmed

Bug description:
  HI,

  I am completely lost. I have installed Ubuntu 14.04 and got no audio
  output. I can view video but no audio output is recieved.

  ProblemType: Bug
  DistroRelease: Ubuntu 14.04
  Package: alsa-base 1.0.25+dfsg-0ubuntu4
  ProcVersionSignature: Ubuntu 3.13.0-24.46-generic 3.13.9
  Uname: Linux 3.13.0-24-generic x86_64
  ApportVersion: 2.14.1-0ubuntu3
  Architecture: amd64
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/controlC0:  marag1     1924 F.... pulseaudio
                        marag1     3196 F.... alsamixer
   /dev/snd/pcmC0D0c:   marag1     1924 F...m pulseaudio
   /dev/snd/pcmC0D0p:   marag1     1924 F...m pulseaudio
  CurrentDesktop: Unity
  Date: Thu May 15 12:38:52 2014
  InstallationDate: Installed on 2014-04-29 (15 days ago)
  InstallationMedia: Ubuntu 14.04 LTS "Trusty Tahr" - Release amd64 (20140417)
  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/controlC0:  marag1     1924 F.... pulseaudio
                        marag1     3196 F.... alsamixer
   /dev/snd/pcmC0D0c:   marag1     1924 F...m pulseaudio
   /dev/snd/pcmC0D0p:   marag1     1924 F...m pulseaudio
  Symptom_Jack: Green Headphone Out, Front
  Symptom_Type: No sound at all
  Title: [, Realtek ALC662 rev1, Green Headphone Out, Front] No sound at all
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 11/28/2012
  dmi.bios.vendor: Intel Corp.
  dmi.bios.version: BFH6110H.86A.0007.2012.1128.1459
  dmi.board.name: DH61BF
  dmi.board.vendor: Intel Corporation
  dmi.board.version: AAG81311-101
  dmi.chassis.type: 3
  dmi.modalias: dmi:bvnIntelCorp.:bvrBFH6110H.86A.0007.2012.1128.1459:bd11/28/2012:svn:pn:pvr:rvnIntelCorporation:rnDH61BF:rvrAAG81311-101:cvn:ct3:cvr:
  mtime.conffile..etc.modprobe.d.alsa.base.conf: 2014-05-13T13:18:52.406555

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