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[Raymond <1545981@xxxxxxxxxxxxxxxxxx>]

https://git.kernel.org/cgit/linux/kernel/git/tiwai/sound.git/commit/sound/pci/hda/patch_realtek.c?id=a30c9aaa900a5fda21b90d5d6a3eaa3cbf16e330


You have to report upstream if the patch still not fix the problem, you ne ed pulseaudio 8.0 for 2.1 subwoofer

** Changed in: alsa-driver (Ubuntu)
       Status: New => Incomplete

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https://bugs.launchpad.net/bugs/1545981

Title:
  [N550JK, Realtek ALC668, Speaker, Internal] No sound with internal
  speakers, only headphones

Status in alsa-driver package in Ubuntu:
  Incomplete

Bug description:
  Hi,
  I have dual boot with Windows 10, after laptop get rebooted from Windows to Ubuntu - there's no sound via internal speakers, only headphones. Suspend - Wakeup sequence brings sound back.

  ProblemType: Bug
  DistroRelease: Ubuntu 14.04
  Package: alsa-base 1.0.25+dfsg-0ubuntu4
  ProcVersionSignature: Ubuntu 3.16.0-60.80~14.04.1-generic 3.16.7-ckt22
  Uname: Linux 3.16.0-60-generic x86_64
  ApportVersion: 2.14.1-0ubuntu3.19
  Architecture: amd64
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/pcmC1D0p:   mbg033     2362 F...m pulseaudio
   /dev/snd/controlC1:  mbg033     2362 F.... pulseaudio
   /dev/snd/controlC0:  mbg033     2362 F.... pulseaudio
  CurrentDesktop: Unity
  Date: Tue Feb 16 11:06:22 2016
  InstallationDate: Installed on 2015-06-14 (247 days ago)
  InstallationMedia: Ubuntu 14.04.2 LTS "Trusty Tahr" - Release amd64 (20150218.1)
  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/pcmC1D0p:   mbg033     2362 F...m pulseaudio
   /dev/snd/controlC1:  mbg033     2362 F.... pulseaudio
   /dev/snd/controlC0:  mbg033     2362 F.... pulseaudio
  Symptom_Jack: Speaker, Internal
  Symptom_Type: No sound at all
  Title: [N550JK, Realtek ALC668, Speaker, Internal] No sound at all
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 09/26/2014
  dmi.bios.vendor: American Megatrends Inc.
  dmi.bios.version: N550JK.208
  dmi.board.asset.tag: ATN12345678901234567
  dmi.board.name: N550JK
  dmi.board.vendor: ASUSTeK COMPUTER INC.
  dmi.board.version: 1.0
  dmi.chassis.asset.tag: No Asset Tag
  dmi.chassis.type: 10
  dmi.chassis.vendor: ASUSTeK COMPUTER INC.
  dmi.chassis.version: 1.0
  dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvrN550JK.208:bd09/26/2014:svnASUSTeKCOMPUTERINC.:pnN550JK:pvr1.0:rvnASUSTeKCOMPUTERINC.:rnN550JK:rvr1.0:cvnASUSTeKCOMPUTERINC.:ct10:cvr1.0:
  dmi.product.name: N550JK
  dmi.product.version: 1.0
  dmi.sys.vendor: ASUSTeK COMPUTER INC.
  mtime.conffile..etc.modprobe.d.alsa.base.conf: 2016-02-10T10:04:01.797127

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