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[mchristoforetti <mchristoforetti@xxxxxxxxx>]

Seeing this problem on a clean install (no dual boot) of any release from 13.10  on up to 14.10.
Lenovo x120e.

Drum sounds are heard at login screen, then no sound in system.  
Sometimes it works for a while, then shuts off randomly.  
Works fine in live cd.  
Seems to be something within an update done via system updater after install.

Headphones work just fine when plugged in.
Sound works fine when Windows 7 or 8.1 is installed (non dual-boot)

Any way we can increase the importance of this? It has not worked for
over a year now for me.

-- 
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/1320020

Title:
  [Inspiron 1470, Realtek ALC272, Speaker, Internal] No sound at all

Status in alsa-driver package in Ubuntu:
  Confirmed

Bug description:
  I can get perfect sound through headphones, and the kernel recognizes
  the internal speaker, but nothing is ever played through it. I have
  personally tested a pair of earbuds to make sure that sound could play
  through the headphone port, and that isn't a problem. The sound driver
  just refuses to recognize the existence of the speaker, even though
  the kernel does.

  I wouldn't be surprised if the last upstream update had something to
  do with it.

  ProblemType: Bug
  DistroRelease: Ubuntu 14.04
  Package: alsa-base 1.0.25+dfsg-0ubuntu4
  ProcVersionSignature: Ubuntu 3.13.0-24.47-generic 3.13.9
  Uname: Linux 3.13.0-24-generic x86_64
  NonfreeKernelModules: wl
  ApportVersion: 2.14.1-0ubuntu3.1
  Architecture: amd64
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/controlC0:  isiah      7361 F.... pulseaudio
  CurrentDesktop: GNOME
  Date: Thu May 15 18:07:52 2014
  InstallationDate: Installed on 2014-01-29 (106 days ago)
  InstallationMedia: Ubuntu-GNOME 13.10 "Saucy Salamander" - Release amd64 (20131017)
  PackageArchitecture: all
  SourcePackage: alsa-driver
  Symptom: audio
  Symptom_AlsaPlaybackTest: ALSA playback test through plughw:Intel failed
  Symptom_Card: Built-in Audio - HDA Intel
  Symptom_DevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/controlC0:  isiah      7361 F.... pulseaudio
  Symptom_Jack: Speaker, Internal
  Symptom_Type: No sound at all
  Title: [Inspiron 1470, Realtek ALC272, Speaker, Internal] No sound at all
  UpgradeStatus: Upgraded to trusty on 2014-05-04 (11 days ago)
  dmi.bios.date: 03/23/2011
  dmi.bios.vendor: Dell Inc.
  dmi.bios.version: A05
  dmi.board.name: 0M7CYJ
  dmi.board.vendor: Dell Inc.
  dmi.board.version: A05
  dmi.chassis.type: 8
  dmi.chassis.vendor: Dell Inc.
  dmi.chassis.version: A05
  dmi.modalias: dmi:bvnDellInc.:bvrA05:bd03/23/2011:svnDellInc.:pnInspiron1470:pvrA05123:rvnDellInc.:rn0M7CYJ:rvrA05:cvnDellInc.:ct8:cvrA05:
  dmi.product.name: Inspiron 1470
  dmi.product.version: A05123
  dmi.sys.vendor: Dell Inc.

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