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[Raymond <1366612@xxxxxxxxxxxxxxxxxx>]

https://bugs.launchpad.net/ubuntu/+source/pulseaudio/+bug/775822


00:07.0 Audio device [0403]: nVidia Corporation MCP67 High Definition Audio [10de:055c] (rev a1)
	Subsystem: Acer Incorporated [ALI] Device [1025:0127]
	Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
	Status: Cap+ 66MHz+ UDF- FastB2B+ ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
	Latency: 0 (500ns min, 1250ns max)
	Interrupt: pin A routed to IRQ 18
	Region 0: Memory at f4480000 (32-bit, non-prefetchable) [size=16K]
	Capabilities: <access denied>
	Kernel driver in use: HDA Intel
	Kernel modules: snd-hda-intel

seem using nvidia hda controller in the past

but class seem different

[    0.216325] pci 0000:07:00.0: [168c:001c] type 00 class 0x020000
[    0.216344] pci 0000:07:00.0: reg 0x10: [mem 0xf4000000-0xf400ffff 64bit]
[    0.216468] pci 0000:07:00.0: disabling ASPM on pre-1.1 PCIe device.  You can enable it with 'pcie_aspm=force'

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https://bugs.launchpad.net/bugs/1366612

Title:
  PCI/internal sound card not detected

Status in alsa-driver package in Ubuntu:
  Confirmed

Bug description:
  I have no sound in my laptop since I had installed Ubuntu 14.04 LTS.

  Recently, while going through the ubuntu forum to seek solution for it
  I used the command:

  aplay -l

  output was:

  aplay: device_list:268: no soundcards found...

  Pls help...

  ProblemType: Bug
  DistroRelease: Ubuntu 14.04
  Package: alsa-base 1.0.25+dfsg-0ubuntu4
  ProcVersionSignature: Ubuntu 3.13.0-35.62-generic 3.13.11.6
  Uname: Linux 3.13.0-35-generic i686
  ApportVersion: 2.14.1-0ubuntu3.3
  Architecture: i386
  AudioDevicesInUse: Error: command ['fuser', '-v', '/dev/snd/seq', '/dev/snd/timer'] failed with exit code 1:
  CurrentDesktop: Unity
  Date: Mon Sep  8 01:40:59 2014
  InstallationDate: Installed on 2014-06-28 (70 days ago)
  InstallationMedia: Ubuntu 14.04 LTS "Trusty Tahr" - Release i386 (20140417)
  PackageArchitecture: all
  PulseList: Error: command ['pacmd', 'list'] failed with exit code 1: Daemon not responding.
  SourcePackage: alsa-driver
  Symptom: audio
  Title: PCI/internal sound card not detected
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 02/04/2008
  dmi.bios.vendor: Acer
  dmi.bios.version: v1.3627
  dmi.board.name: Mono
  dmi.board.vendor: Acer, Inc.
  dmi.board.version: Not Applicable
  dmi.chassis.type: 1
  dmi.chassis.vendor: Acer, Inc.
  dmi.chassis.version: N/A
  dmi.modalias: dmi:bvnAcer:bvrv1.3627:bd02/04/2008:svnAcer,inc.:pnAspire4520:pvrNotApplicable:rvnAcer,Inc.:rnMono:rvrNotApplicable:cvnAcer,Inc.:ct1:cvrN/A:
  dmi.product.name: Aspire 4520
  dmi.product.version: Not Applicable
  dmi.sys.vendor: Acer, inc.

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