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[Daan Willems <573378@xxxxxxxxxxxxxxxxxx>]

Hi Christopher, please see my comment from 2010-05-04. Ever since, I
found no more problems related to this issue, up until my current 13.04
install. Best regards, Daan Willems

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https://bugs.launchpad.net/bugs/573378

Title:
  ALC892 not supported in 10.04 default kernel

Status in “linux” package in Ubuntu:
  Incomplete

Bug description:
  Binary package hint: linux-image-2.6.32-21-generic

  The default kernel installed with Ubuntu 10.04 has no full support for
  ALC892 Audio chip, available on for example the ASUS P7H55-M Pro
  motherboard. Instead, it reverts to a generic intel HD Audio chip,
  offering only stereo playback. In alsamixer, only a master, pcm and
  iec slider appear. Support for the ALC892 Intel G45 DEVIBX was added
  in 2.3.33. A mainline kernel from the kernel ppa (i.e. -
  linux-2.6.33-02063303-generic) successfully recognizes the chip and
  offers the full range of sliders in alsamixer, offering the intended
  5.1/7.1 support. My suggestion is to backport the 2.6.33.x kernel
  module for ALC892 to the current 2.6.32 ubuntu kernel to add the
  correct support of this chip.

  #cat /proc/asound/card0/codec#* | grep Codec
  Codec: Realtek ID 892
  Codec: Intel G45 DEVIBX

  ProblemType: Bug
  DistroRelease: Ubuntu 10.04
  Package: linux-image-2.6.32-21-generic 2.6.32-21.32
  Regression: No
  Reproducible: Yes
  ProcVersionSignature: Ubuntu 2.6.32-21.32-generic 2.6.32.11+drm33.2
  Uname: Linux 2.6.32-21-generic x86_64
  AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.21.
  Architecture: amd64
  ArecordDevices:
   **** List of CAPTURE Hardware Devices ****
   card 0: Intel [HDA Intel], device 0: HDA Generic [HDA Generic]
     Subdevices: 1/1
     Subdevice #0: subdevice #0
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/controlC0:  d3vlin     1677 F.... pulseaudio
  CRDA: Error: [Errno 2] No such file or directory
  Card0.Amixer.info:
   Card hw:0 'Intel'/'HDA Intel at 0xfbdf4000 irq 22'
     Mixer name	: 'Intel G45 DEVIBX'
     Components	: 'HDA:10ec0892,10438436,00100302 HDA:80862804,80860101,00100000'
     Controls      : 8
     Simple ctrls  : 4
  Date: Sun May  2 01:41:44 2010
  HibernationDevice: RESUME=UUID=1f43f3bb-945c-4686-b783-ee23bcc89d02
  InstallationMedia: Ubuntu 10.04 LTS "Lucid Lynx" - Release amd64 (20100429)
  IwConfig:
   lo        no wireless extensions.
   
   eth0      no wireless extensions.
  MachineType: System manufacturer System Product Name
  ProcCmdLine: BOOT_IMAGE=/boot/vmlinuz-2.6.32-21-generic root=UUID=f4add25a-22c0-436d-b60d-847acc2dc160 ro quiet splash
  ProcEnviron:
   LANG=en_US.utf8
   SHELL=/bin/bash
  RelatedPackageVersions: linux-firmware 1.34
  RfKill:
   
  SourcePackage: linux
  dmi.bios.date: 12/30/2009
  dmi.bios.vendor: American Megatrends Inc.
  dmi.bios.version: 0601
  dmi.board.asset.tag: To Be Filled By O.E.M.
  dmi.board.name: P7H55-M PRO
  dmi.board.vendor: ASUSTeK Computer INC.
  dmi.board.version: Rev 1.xx
  dmi.chassis.asset.tag: Asset-1234567890
  dmi.chassis.type: 3
  dmi.chassis.vendor: Chassis Manufacture
  dmi.chassis.version: Chassis Version
  dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvr0601:bd12/30/2009:svnSystemmanufacturer:pnSystemProductName:pvrSystemVersion:rvnASUSTeKComputerINC.:rnP7H55-MPRO:rvrRev1.xx:cvnChassisManufacture:ct3:cvrChassisVersion:
  dmi.product.name: System Product Name
  dmi.product.version: System Version
  dmi.sys.vendor: System manufacturer

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