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[Raymond <1363728@xxxxxxxxxxxxxxxxxx>]

http://www.asus.com/Notebooks_Ultrabooks/N550JK/specifications/

1 x COMBO audio jack

1 x HDMI 
1 x mini Display Port


Audio
Built-in Speakers And Digital Array Microphone
Built-in 4 Speakers And Microphone
Bang & Olufsen ICEpower®
SonicMaster Premium 
Asus N series external sub-woofer support
MaxxAudio support


do you meam no sound on 4 speaker or external subwoofer ?

you have uptown follow up the upstream bug report of n550jv alc668 bug

sys/class/sound/hwC1D0/init_pin_configs:
0x12 0x90a60130
0x14 0x90170110
0x15 0x03211020
0x16 0x40000000
0x18 0x411111f0
0x19 0x411111f0
0x1a 0x411111f0
0x1b 0x03a11040
0x1d 0x40c00001
0x1e 0x411111f0
0x1f 0x411111f0

/sys/class/sound/hwC1D0/driver_pin_configs:
0x1a 0x80106111


16.783440] autoconfig: line_outs=2 (0x14/0x1a/0x0/0x0/0x0) type:speaker
[   16.783441]    speaker_outs=0 (0x0/0x0/0x0/0x0/0x0)
[   16.783443]    hp_outs=1 (0x15/0x0/0x0/0x0/0x0)
[   16.783443]    mono: mono_out=0x0
[   16.783444]    inputs:
[   16.783446]      Mic=0x1b
[   16.783447]      Internal Mic=0x12

-- 
You received this bug notification because you are a member of Ubuntu
Touch seeded packages, which is subscribed to alsa-driver in Ubuntu.
https://bugs.launchpad.net/bugs/1363728

Title:
  [N550JK, Realtek ALC668, Speaker, Internal] No sound at all

Status in “alsa-driver” package in Ubuntu:
  New

Bug description:
  Yesterday I had any sound problems, but now there is not sound at all.

  
  Alsa-info is here: http://www.alsa-project.org/db/?f=20a70e0b479a3318f508f345060f2bed5a2789b4

  ProblemType: Bug
  DistroRelease: Ubuntu 14.04
  Package: alsa-base 1.0.25+dfsg-0ubuntu4
  ProcVersionSignature: Ubuntu 3.13.0-34.60-generic 3.13.11.4
  Uname: Linux 3.13.0-34-generic x86_64
  ApportVersion: 2.14.1-0ubuntu3.3
  Architecture: amd64
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/controlC0:  fatih      2066 F.... pulseaudio
   /dev/snd/controlC1:  fatih      2066 F.... pulseaudio
  CurrentDesktop: Unity
  Date: Sun Aug 31 23:32:51 2014
  InstallationDate: Installed on 2014-08-05 (25 days ago)
  InstallationMedia: Ubuntu 14.04.1 LTS "Trusty Tahr" - Release amd64 (20140722.2)
  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:  fatih      2066 F.... pulseaudio
   /dev/snd/controlC1:  fatih      2066 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: 01/23/2014
  dmi.bios.vendor: American Megatrends Inc.
  dmi.bios.version: N550JK.204
  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.204:bd01/23/2014: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.

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