No sound output except for headphone output

[thathatman]

Description:
In 11.10, my audio worked perfectly.
However, in 12.04, on my intel HD audio, I can only get output from the front panel headphones output. None of the outputs on the back panel work.

There are some unusual symptoms. For example, the "headphone" checkbox is always checked, and if I uncheck it, it mutes all sound (systray icon shows muted). Even if I mess with all sliders, muting and unmuting them, the back outputs won't work.

Attempts to fix, in no order:
-run from liveCD
-purge + reinstall alsa and pulseaudio
-all combinations of settings in alsa-mixer, pavucontrol, sound control panel
-disable + re-enable intel-hda in BIOS
-all suggestions on the soundtroubleshooting and hdaintal sound wiki pages:
https://help.ubuntu.com/community/SoundTroubleshooting
https://help.ubuntu.com/community/HdaIntelSoundHowto

ProblemType: Bug
DistroRelease: Ubuntu 12.04
Package: alsa-base 1.0.25+dfsg-0ubuntu1
ProcVersionSignature: Ubuntu 3.2.0-23.36-generic 3.2.14
Uname: Linux 3.2.0-23-generic x86_64
NonfreeKernelModules: fglrx
AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.24.
ApportVersion: 2.0.1-0ubuntu5
Architecture: amd64
ArecordDevices:
 **** List of CAPTURE Hardware Devices ****
 card 0: SB [HDA ATI SB], device 0: VT1708S Analog [VT1708S Analog]
   Subdevices: 2/2
   Subdevice #0: subdevice #0
   Subdevice #1: subdevice #1
AudioDevicesInUse:
 USER PID ACCESS COMMAND
 /dev/snd/controlC1: aaron 2462 F.... pulseaudio
 /dev/snd/controlC0: aaron 2462 F.... pulseaudio
Card0.Amixer.info:
 Card hw:0 'SB'/'HDA ATI SB at 0xfbcf4000 irq 16'
   Mixer name : 'VIA VT1708S'
   Components : 'HDA:11060397,1043836c,00100000'
   Controls : 45
   Simple ctrls : 22
Card1.Amixer.info:
 Card hw:1 'Generic'/'HD-Audio Generic at 0xfbdbc000 irq 43'
   Mixer name : 'ATI R6xx HDMI'
   Components : 'HDA:1002aa01,00aa0100,00100200'
   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: Fri Apr 20 14:43:15 2012
InstallationMedia: Ubuntu 10.10 "Maverick Meerkat" - Release amd64 (20101007)
PackageArchitecture: all
ProcEnviron:
 TERM=xterm
 PATH=(custom, user)
 LANG=en_US.UTF-8
 SHELL=/bin/bash
SourcePackage: alsa-driver
UpgradeStatus: Upgraded to precise on 2012-04-16 (4 days ago)
dmi.bios.date: 06/28/2010
dmi.bios.vendor: American Megatrends Inc.
dmi.bios.version: 2104
dmi.board.asset.tag: To Be Filled By O.E.M.
dmi.board.name: M4A77TD
dmi.board.vendor: ASUSTeK Computer INC.
dmi.board.version: Rev X.0x
dmi.chassis.asset.tag: Asset-1234567890
dmi.chassis.type: 3
dmi.chassis.vendor: Chassis Manufacture
dmi.chassis.version: Chassis Version
dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvr2104:bd06/28/2010:svnSystemmanufacturer:pnSystemProductName:pvrSystemVersion:rvnASUSTeKComputerINC.:rnM4A77TD:rvrRevX.0x:cvnChassisManufacture:ct3:cvrChassisVersion:
dmi.product.name: System Product Name
dmi.product.version: System Version
dmi.sys.vendor: System manufacturer

[thathatman (aaron-dorman)]

I forgot to mention that under sound settings modes: there is no "headphones" settings, but there are all the other speaker output modes (duplex 4.0, 5.1, etc), and selecting any of these modes does not help.

I am happy to provide anything or run any tests.
Thanks!

[Daniel Letzeisen (dtl131)]

Please try the latest ALSA module to see if this has been fixed upstream: https://wiki.ubuntu.com/Audio/UpgradingAlsa/DKMS

[thathatman (aaron-dorman)]

Dave,
I tried the ALSA snapshot and the problem still occurs.

[wk (wkleedorfer)]

I installed Ubuntu 12.04 yesterday and i had the exact same problem. Sound would only come from the front panel jacks where the headset was plugged in, but not from the back where the stereo amplifier was plugged in.

I also installed the ALSA devel (DKMS) modules but that didnt solve the problem (initially).

But: i later opened the alsamixer (in a terminal) and found that the "smart 5.1" entry was muted (scroll to the far right in the mixer, it was the last entry in my system). i unmuted it (pressing 'm' or 'o', sorry forgot which key) and then the backpanel jack was finally working.

so, i dont know if the new alsa modules are needed, i am not going to uninstall them now to check ... too lazy.

not sure if this helps your problem, but give it a try ......

[Launchpad Janitor (janitor)]

Status changed to 'Confirmed' because the bug affects multiple users.

[thathatman (aaron-dorman)]

Wk,
Thanks for the idea.
Unfortunately, i don't have a "smart 5.1" entry in my mixer. That's unusual because I am fairly sure it was there in 11.10.

[Marcus Tomlinson (marcustomlinson)]

This release of Ubuntu is no longer receiving maintenance updates. If this is still an issue on a maintained version of Ubuntu please let us know.

[Launchpad Janitor (janitor)]

[Expired for alsa-driver (Ubuntu) because there has been no activity for 60 days.]