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[Raymond <1324384@xxxxxxxxxxxxxxxxxx>]

https://git.kernel.org/cgit/linux/kernel/git/tiwai/sound.git/commit/sound/pci/hda/patch_analog.c?id=6a699bec88d5755c0f1be4e967649b3cfeac0205


use hdajackretask or early patching to fix the pin default if spdif node
0x1b from[n/a] to jack

https://git.kernel.org/cgit/linux/kernel/git/tiwai/sound.git/tree/Documentation/sound/alsa
/HD-Audio.txt

Node 0x1b [Pin Complex] wcaps 0x40030d: Stereo Digital Amp-Out
  Amp-Out caps: ofs=0x27, nsteps=0x27, stepsize=0x05, mute=1
  Amp-Out vals:  [0xa7 0xa7]
  Pincap 0x00000010: OUT
  Pin Default 0x614411f0: [N/A] SPDIF Out at Sep Rear
    Conn = RCA, Color = Black
    DefAssociation = 0xf, Sequence = 0x0
    Misc = NO_PRESENCE
  Pin-ctls: 0x40: OUT
  Connection: 1
     0x02

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https://bugs.launchpad.net/bugs/1324384

Title:
  [Lenovo ThinkPad X61s] Speaker volume mutes itself in random intervals
  after upgrade to 14.04

Status in “linux” package in Ubuntu:
  Incomplete

Bug description:
  I've upgraded from ubuntu 13.10 and sound stopped working properly. It works in general. But mutes itself for small period  of time in random intervals. I've looked at alsamixer and it shown what once in a while some of the parameters got to the lowest level and then returning to normal after some time. It is reproing on Speaker. But also Internal Mic Boost jumps from 100% to 0% and then back to 100%. 
  BTW, when sound mutes on speaker, headphones are still working. So looks like alsamixer reports volumes  correctly. I've also tried to purge pulseaudio and alsa-base packages and re-installing them again.

  But I was able to find workaround. Audio works just fine with old
  kernels. I've tried with 3.5.0-15 and 3.5.0-27. It works with both
  kernels. I've also tried newest kernel from next ubuntu version.
  3.15.0-031500rc5 - audio is not working in new kernel.

  $ amixer -c 0 scontents > normal.txt
  SEE Attachment.
  $ amixer -c 0 scontents > muted.txt
  SEE Attachment.
  $ amixer -c 0 scontents > normalagain.txt
  SEE Attachment.

  ProblemType: Bug
  DistroRelease: Ubuntu 14.04
  Package: linux-image-3.13.0-27-generic 3.13.0-27.50
  ProcVersionSignature: Ubuntu 3.13.0-27.50-generic 3.13.11
  Uname: Linux 3.13.0-27-generic x86_64
  ApportVersion: 2.14.1-0ubuntu3.2
  Architecture: amd64
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/controlC0:  ghisguth   2519 F.... pulseaudio
                        ghisguth   3906 F.... pulseaudio
                        ghisguth  15548 F.... alsamixer
  Date: Wed May 28 22:50:29 2014
  HibernationDevice: RESUME=UUID=78076f7a-8340-428e-894b-ce095d0d278e
  InstallationDate: Installed on 2010-04-19 (1501 days ago)
  InstallationMedia: Kubuntu 10.04 "Lucid Lynx" - Beta amd64 (20100406.1)
  MachineType: LENOVO 76693JG
  PccardctlIdent:
   Socket 0:
     no product info available
  PccardctlStatus:
   Socket 0:
     no card
  ProcEnviron:
   TERM=xterm
   PATH=(custom, no user)
   LANG=en_US.UTF-8
   SHELL=/bin/bash
  ProcFB: 0 inteldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-3.13.0-27-generic root=/dev/mapper/ubuntu-root ro quiet splash crashkernel=384M-:128M
  PulseList:
   Error: command ['pacmd', 'list'] failed with exit code 1: Home directory not accessible: Permission denied
   No PulseAudio daemon running, or not running as session daemon.
  RelatedPackageVersions:
   linux-restricted-modules-3.13.0-27-generic N/A
   linux-backports-modules-3.13.0-27-generic  N/A
   linux-firmware                             1.127.2
  RfKill:
   0: phy0: Wireless LAN
    Soft blocked: no
    Hard blocked: no
  SourcePackage: linux
  UpgradeStatus: Upgraded to trusty on 2014-04-25 (33 days ago)
  dmi.bios.date: 10/22/2007
  dmi.bios.vendor: LENOVO
  dmi.bios.version: 7NET29WW (1.10 )
  dmi.board.name: 76693JG
  dmi.board.vendor: LENOVO
  dmi.board.version: Not Available
  dmi.chassis.asset.tag: No Asset Information
  dmi.chassis.type: 10
  dmi.chassis.vendor: LENOVO
  dmi.chassis.version: Not Available
  dmi.modalias: dmi:bvnLENOVO:bvr7NET29WW(1.10):bd10/22/2007:svnLENOVO:pn76693JG:pvrThinkPadX61s:rvnLENOVO:rn76693JG:rvrNotAvailable:cvnLENOVO:ct10:cvrNotAvailable:
  dmi.product.name: 76693JG
  dmi.product.version: ThinkPad X61s
  dmi.sys.vendor: LENOVO

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