[HP Pavilion dv6 Notebook PC, IDT 92HD75B3X5, Speaker, Internal] No sound at all

[Chris Heeney]

I am guessing that I lost sound after the last kernel update. Everything seemed to be working fine before that. I ran 'ubuntu-bug audio' in the terminal as recommended from https://wiki.ubuntu.com/DebuggingSoundProblems

ProblemType: Bug
DistroRelease: Ubuntu 12.04
Package: alsa-base 1.0.25+dfsg-0ubuntu1
ProcVersionSignature: Ubuntu 3.2.0-25.40-generic 3.2.18
Uname: Linux 3.2.0-25-generic x86_64
NonfreeKernelModules: fglrx
AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.24.
ApportVersion: 2.0.1-0ubuntu8
Architecture: amd64
ArecordDevices:
 **** List of CAPTURE Hardware Devices ****
 card 0: Intel [HDA Intel], device 0: STAC92xx Analog [STAC92xx Analog]
   Subdevices: 1/1
   Subdevice #0: subdevice #0
AudioDevicesInUse:
 USER PID ACCESS COMMAND
 /dev/snd/controlC1: yogikeshava 1905 F.... pulseaudio
 /dev/snd/controlC0: yogikeshava 1905 F.... pulseaudio
Card0.Amixer.info:
 Card hw:0 'Intel'/'HDA Intel at 0xda100000 irq 49'
   Mixer name : 'IDT 92HD75B3X5'
   Components : 'HDA:111d7603,103c3628,00100202'
   Controls : 24
   Simple ctrls : 14
Card1.Amixer.info:
 Card hw:1 'HDMI'/'HDA ATI HDMI at 0xda010000 irq 50'
   Mixer name : 'ATI R6xx HDMI'
   Components : 'HDA:1002aa01,00aa0100,00100100'
   Controls : 6
   Simple ctrls : 1
Card1.Amixer.values:
 Simple mixer control 'IEC958',0
   Capabilities: pswitch pswitch-joined penum
   Playback channels: Mono
   Mono: Playback [on]
Date: Tue Jun 19 21:07:22 2012
InstallationMedia: Ubuntu 11.04 "Natty Narwhal" - Release amd64 (20110427.1)
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:
 1905 1905 yogikeshava F.... pulseaudio
 /dev/snd/controlC0: yogikeshava F.... pulseaudio
Symptom_Jack: Speaker, Internal
Symptom_Type: No sound at all
Title: [HP Pavilion dv6 Notebook PC, IDT 92HD75B3X5, Speaker, Internal] No sound at all
UpgradeStatus: Upgraded to precise on 2012-04-27 (54 days ago)
dmi.bios.date: 10/09/2009
dmi.bios.vendor: Hewlett-Packard
dmi.bios.version: F.36
dmi.board.asset.tag: Base Board Asset Tag
dmi.board.name: 3628
dmi.board.vendor: Quanta
dmi.board.version: 18.42
dmi.chassis.type: 10
dmi.chassis.vendor: Quanta
dmi.chassis.version: N/A
dmi.modalias: dmi:bvnHewlett-Packard:bvrF.36:bd10/09/2009:svnHewlett-Packard:pnHPPaviliondv6NotebookPC:pvrRev1:rvnQuanta:rn3628:rvr18.42:cvnQuanta:ct10:cvrN/A:
dmi.product.name: HP Pavilion dv6 Notebook PC
dmi.product.version: Rev 1
dmi.sys.vendor: Hewlett-Packard

[Chris Heeney (heeney-cs)]

This problem is only affecting my laptop speakers. If I plug my headphones into the headphone jack the sound from my headphones is fine.

I also added the audio PPA and ran updates but it did not make any difference: ppa:ubuntu-audio-dev/ppa

I suspect that after I ran the kernel update the driver that was being used for my speakers changed. Unfortunately I don't know what driver was being used before and I don't know how to change drivers on Ubuntu anyways.

[Chris Heeney (heeney-cs)]

I found another bug that is being worked on thats the same problem: #1013183. I assigned this one as a duplicate.