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[Raymond <1432347@xxxxxxxxxxxxxxxxxx>]

http://www.realtek.com.tw/products/productsView.aspx?Langid=1&PFid=27&Level=5&Conn=4&ProdID=171

strange that there are THREE audio outputs in your codec info

Featuring two stereo DACs, two stereo ADCs, legacy analog input to
analog output mixing, one stereo digital microphone converter, and two
independent SPDIF output converters, the ALC272 provides a fully
integrated audio solution for multimedia desktop and mobile PCs, and
ultra mobile devices.

** Package changed: pulseaudio (Ubuntu) => alsa-driver (Ubuntu)

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https://bugs.launchpad.net/bugs/1432347

Title:
   20035, Realtek ALC272, Purple Speaker, Internal  Pulseaudio fails to
  detect card

Status in alsa-driver package in Ubuntu:
  Incomplete

Bug description:
  All sound output and input devices don't detecting.
  Ubuntu 14.04 LTS

  ProblemType: Bug
  DistroRelease: Ubuntu 14.04
  Package: pulseaudio 1:4.0-0ubuntu11.1
  ProcVersionSignature: Ubuntu 3.16.0-31.43~14.04.1-generic 3.16.7-ckt5
  Uname: Linux 3.16.0-31-generic x86_64
  NonfreeKernelModules: nvidia wl
  ApportVersion: 2.14.1-0ubuntu3.7
  Architecture: amd64
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/controlC1:  akinshchikov   2571 F.... pulseaudio
  CurrentDesktop: Unity
  Date: Sun Mar 15 15:20:43 2015
  InstallationDate: Installed on 2015-03-12 (2 days ago)
  InstallationMedia: Ubuntu 14.04.2 LTS "Trusty Tahr" - Release amd64 (20150218.1)
  SourcePackage: pulseaudio
  Symptom: audio
  Symptom_Card: HDA-Intel - HDA Intel MID
  Symptom_Jack: Purple Speaker, Internal
  Title: [20035, Realtek ALC272, Purple Speaker, Internal] Pulseaudio fails to detect card
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 08/13/2010
  dmi.bios.vendor: LENOVO
  dmi.bios.version: 1ECN35WW(V5.09)
  dmi.board.asset.tag: Base Board Asset Tag
  dmi.board.name: Base Board Product Name
  dmi.board.vendor: LENOVO
  dmi.board.version: Base Board Version
  dmi.chassis.asset.tag: Chassis Asset Tag
  dmi.chassis.type: 10
  dmi.chassis.vendor: Chassis Manufacturer
  dmi.chassis.version: Chassis Version
  dmi.modalias: dmi:bvnLENOVO:bvr1ECN35WW(V5.09):bd08/13/2010:svnLENOVO:pn20035:pvrLenovoIdeaPadY550P:rvnLENOVO:rnBaseBoardProductName:rvrBaseBoardVersion:cvnChassisManufacturer:ct10:cvrChassisVersion:
  dmi.product.name: 20035
  dmi.product.version: Lenovo IdeaPad Y550P
  dmi.sys.vendor: LENOVO

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