Public bug reported:
HDMI-Stereo output plays front-left to both speakers and front-right is
inaudible. The system used to work perfectly with 10.04 LTS 32-bit.
ProblemType: Bug
DistroRelease: Ubuntu 12.04
Package: alsa-base 1.0.25+dfsg-0ubuntu1.1
ProcVersionSignature: Ubuntu 3.8.0-30.44~precise1-generic 3.8.13.6
Uname: Linux 3.8.0-30-generic x86_64
NonfreeKernelModules: nvidia
AlsaVersion: Advanced Linux Sound Architecture Driver Version k3.8.0-30-generic.
ApportVersion: 2.0.1-0ubuntu17.4
Architecture: amd64
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/controlC0: hafnagel 1764 F.... pulseaudio
Card0.Amixer.info:
Card hw:0 'NVidia'/'HDA NVidia at 0xfae78000 irq 23'
Mixer name : 'Nvidia MCP79/7A HDMI'
Components : 'HDA:10ec0888,104382fe,00100101
HDA:10de0007,10438356,00100100'
Controls : 57
Simple ctrls : 22
Date: Sun Sep 8 12:21:39 2013
InstallationMedia: Ubuntu 12.04.3 LTS "Precise Pangolin" - Release amd64
(20130820.1)
MarkForUpload: True
PackageArchitecture: all
ProcEnviron:
TERM=xterm
PATH=(custom, no user)
LANG=en_US.UTF-8
SHELL=/bin/bash
SourcePackage: alsa-driver
Symptom: audio
Symptom_AlsaPlaybackTest: ALSA playback test through plughw:NVidia failed
Symptom_Card: Built-in Audio - HDA NVidia
Symptom_Jack: Digital Out, HDMI
Symptom_Type: None of the above
Title: [System Product Name, Nvidia MCP79/7A HDMI, Digital Out, HDMI] Playback
problem
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 05/21/2009
dmi.bios.vendor: American Megatrends Inc.
dmi.bios.version: 0514
dmi.board.asset.tag: To Be Filled By O.E.M.
dmi.board.name: P5N7A-VM
dmi.board.vendor: ASUSTeK Computer INC.
dmi.board.version: Rev 1.xx
dmi.chassis.asset.tag: Asset-1234567890
dmi.chassis.type: 3
dmi.chassis.vendor: Chassis Manufacture
dmi.chassis.version: Chassis Version
dmi.modalias:
dmi:bvnAmericanMegatrendsInc.:bvr0514:bd05/21/2009:svnSystemmanufacturer:pnSystemProductName:pvrSystemVersion:rvnASUSTeKComputerINC.:rnP5N7A-VM:rvrRev1.xx:cvnChassisManufacture:ct3:cvrChassisVersion:
dmi.product.name: System Product Name
dmi.product.version: System Version
dmi.sys.vendor: System manufacturer
** Affects: alsa-driver (Ubuntu)
Importance: Undecided
Status: New
** Tags: amd64 apport-bug precise running-unity
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https://bugs.launchpad.net/bugs/1222375
Title:
[System Product Name, Nvidia MCP79/7A HDMI, Digital Out, HDMI]
Playback problem
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