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[Po-Hsu Lin <po-hsu.lin@xxxxxxxxxxxxx>]

Hello Christopher,
thanks for the comment, but I don't think it's BIOS related.

Verified again on 201202-10592 with 12.10 + update (3.5.0-45)
Volume can be controlled by hotkeys, sound could be played normally.
But the output device section still empty.

With further investigation, it might be caused by pluseaudio
an output device (Built-in Audio Analog Stereo) will appear with this command:
pactl load-module module-detect

please find attachments for "pacmd list-sinks" results before and after
this pactl command.

$ dpkg -l | grep pulseaudio
ii  gstreamer0.10-pulseaudio:amd64            0.10.31-3ubuntu1.2                        amd64        GStreamer plugin for PulseAudio
ii  pulseaudio                                1:2.1-0ubuntu4.1                          amd64        PulseAudio sound server
ii  pulseaudio-module-bluetooth               1:2.1-0ubuntu4.1                          amd64        Bluetooth module for PulseAudio sound server
ii  pulseaudio-module-gconf                   1:2.1-0ubuntu4.1                          amd64        GConf module for PulseAudio sound server
ii  pulseaudio-module-x11                     1:2.1-0ubuntu4.1                          amd64        X11 module for PulseAudio sound server
ii  pulseaudio-utils                          1:2.1-0ubuntu4.1                          amd64        Command line tools for the PulseAudio sound server

I will change the affected package, thanks!

** Attachment added: "list-sinks"
   https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1190482/+attachment/3942233/+files/list-sinks

** Changed in: linux (Ubuntu)
       Status: Incomplete => Confirmed

** Package changed: linux (Ubuntu) => pulseaudio (Ubuntu)

** Changed in: pulseaudio (Ubuntu)
   Importance: Medium => Undecided

-- 
You received this bug notification because you are a member of Kernel
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https://bugs.launchpad.net/bugs/1190482

Title:
  [Dell Vostro 2420] Internal speaker does not show up in "Sound
  settings"

Status in “pulseaudio” package in Ubuntu:
  Confirmed

Bug description:
  CID: 201202-10592

  This is a SRU system which is running 12.10 (3.5.0-34-generic
  #55-Ubuntu)

  The internal speaker does not show up in "Sound settings"
  But I can still play sound through the internal speaker normally (like pressing the volume button)
  And if you connect a headset to it, there will be a "Headphones" option available in the "Play sound through" list

  ProblemType: Bug
  DistroRelease: Ubuntu 12.10
  Package: linux-image-3.5.0-34-generic 3.5.0-34.55
  ProcVersionSignature: Ubuntu 3.5.0-34.55-generic 3.5.7.13
  Uname: Linux 3.5.0-34-generic x86_64
  ApportVersion: 2.6.1-0ubuntu11
  Architecture: amd64
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/controlC0:  ubuntu     1945 F.... pulseaudio
   /dev/snd/pcmC0D0c:   ubuntu     1945 F...m pulseaudio
  CRDA:
   country TW:
   	(2402 - 2472 @ 40), (3, 27)
   	(5270 - 5330 @ 40), (3, 17), DFS
   	(5735 - 5815 @ 40), (3, 30)
  Date: Thu Jun 13 02:56:11 2013
  HibernationDevice: RESUME=UUID=723efe02-01db-495b-bcd1-91893597ef40
  InstallationDate: Installed on 2013-06-10 (2 days ago)
  InstallationMedia: Ubuntu 12.10 "Quantal Quetzal" - Release amd64 (20121017.5)
  MachineType: Dell Inc. Vostro 2420
  MarkForUpload: True
  ProcEnviron:
   TERM=xterm
   PATH=(custom, no user)
   XDG_RUNTIME_DIR=<set>
   LANG=en_US.UTF-8
   SHELL=/bin/bash
  ProcFB: 0 inteldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.5.0-34-generic root=UUID=cf712f1a-f18d-484c-b721-54b3a48d9e1f ro quiet splash initcall_debug vt.handoff=7
  RelatedPackageVersions:
   linux-restricted-modules-3.5.0-34-generic N/A
   linux-backports-modules-3.5.0-34-generic  N/A
   linux-firmware                            1.95.1
  RfKill:
   0: phy0: Wireless LAN
   	Soft blocked: no
   	Hard blocked: no
  SourcePackage: linux
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 08/15/2012
  dmi.bios.vendor: Dell Inc.
  dmi.bios.version: A03
  dmi.board.vendor: Dell Inc.
  dmi.board.version: A03
  dmi.chassis.type: 8
  dmi.chassis.vendor: Dell Inc.
  dmi.chassis.version: Not Specified
  dmi.modalias: dmi:bvnDellInc.:bvrA03:bd08/15/2012:svnDellInc.:pnVostro2420:pvrNotSpecified:rvnDellInc.:rn:rvrA03:cvnDellInc.:ct8:cvrNotSpecified:
  dmi.product.name: Vostro 2420
  dmi.product.version: Not Specified
  dmi.sys.vendor: Dell Inc.

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