Public bug reported:

The headphones were working great until I plugged the external speakers
into the usb port in the front of the computer.  It changes the settings
somehow  and the external speakers didn't work.  I unplugged the
external speakers and put on the headphones.  Now they do not work.  I
can't figure it out.  Why didn't it return or recognize the headphones.
I am sooo frustrated.   This is the second time this has happened and
the last time I had to reinstall the program to get the headphones to
work.  It has to be something very  simple and I am NOT getting it.
Please help!  I am running Ubuntu 11.10.  I really do not want to go
back to Windows but I am not liking this speaker thing.
[email protected]

ProblemType: Bug
DistroRelease: Ubuntu 11.04
Package: alsa-base 1.0.24+dfsg-0ubuntu1
ProcVersionSignature: Ubuntu 2.6.38-12.51-generic 2.6.38.8
Uname: Linux 2.6.38-12-generic x86_64
AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.23.
Architecture: amd64
AudioDevicesInUse:
 USER        PID ACCESS COMMAND
 /dev/snd/controlC2:  larry      1574 F.... pulseaudio
 /dev/snd/pcmC2D3p:   larry      1574 F...m pulseaudio
 /dev/snd/controlC0:  larry      1574 F.... pulseaudio
 /dev/snd/controlC1:  larry      1574 F.... pulseaudio
Card0.Amixer.info:
 Card hw:0 'SB'/'HDA ATI SB at 0xfe9f4000 irq 16'
   Mixer name   : 'VIA VT1828S'
   Components   : 'HDA:11064441,14627623,00100100'
   Controls      : 36
   Simple ctrls  : 21
Card1.Amixer.info:
 Card hw:1 'default'/'C-Media USB Headphone Set   at usb-0000:00:12.0-3, full 
speed'
   Mixer name   : 'USB Mixer'
   Components   : 'USB0d8c:000c'
   Controls      : 7
   Simple ctrls  : 3
Card2.Amixer.info:
 Card hw:2 'Generic'/'HD-Audio Generic at 0xfeabc000 irq 43'
   Mixer name   : 'ATI R6xx HDMI'
   Components   : 'HDA:1002aa01,00aa0100,00100200'
   Controls      : 4
   Simple ctrls  : 1
Card2.Amixer.values:
 Simple mixer control 'IEC958',0
   Capabilities: pswitch pswitch-joined penum
   Playback channels: Mono
   Mono: Playback [on]
CurrentDmesg:
 [   17.139178] EXT4-fs (sda1): re-mounted. Opts: errors=remount-ro,commit=0
 [   17.495192] hda-intel: IRQ timing workaround is activated for card #2. 
Suggest a bigger bdl_pos_adj.
 [   24.290015] eth0: no IPv6 routers present
Date: Tue Nov  1 13:45:18 2011
InstallationMedia: Ubuntu 11.04 "Natty Narwhal" - Release amd64 (20110427)
PackageArchitecture: all
ProcEnviron:
 LANGUAGE=en_US:en
 LANG=en_US.UTF-8
 SHELL=/bin/bash
SourcePackage: alsa-driver
Symptom: audio
Symptom_AlsaPlaybackTest: ALSA playback test through plughw:Generic failed
Symptom_Card: Manhattan HDMI Audio [Mobility Radeon HD 5000 Series] - HD-Audio 
Generic
Symptom_DevicesInUse:
 1574  1574  1574  1574  larry     F.... pulseaudio
 /dev/snd/pcmC2D3p:   larry     F...m pulseaudio
 /dev/snd/controlC0:  larry     F.... pulseaudio
 /dev/snd/controlC1:  larry     F.... pulseaudio
Symptom_Jack: Digital Out, HDMI
Symptom_Type: No sound at all
Title: [MS-7623, ATI R6xx HDMI, Digital Out, HDMI] No sound at all
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 08/10/2010
dmi.bios.vendor: American Megatrends Inc.
dmi.bios.version: V11.5
dmi.board.asset.tag: To Be Filled By O.E.M.
dmi.board.name: 785GM-P45 (MS-7623)
dmi.board.vendor: MSI
dmi.board.version: 2.0
dmi.chassis.asset.tag: To Be Filled By O.E.M.
dmi.chassis.type: 3
dmi.chassis.vendor: MSI
dmi.chassis.version: 2.0
dmi.modalias: 
dmi:bvnAmericanMegatrendsInc.:bvrV11.5:bd08/10/2010:svnMSI:pnMS-7623:pvr2.0:rvnMSI:rn785GM-P45(MS-7623):rvr2.0:cvnMSI:ct3:cvr2.0:
dmi.product.name: MS-7623
dmi.product.version: 2.0
dmi.sys.vendor: MSI

** Affects: alsa-driver (Ubuntu)
     Importance: Undecided
         Status: New


** Tags: amd64 apport-bug natty running-unity

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Title:
  [MS-7623, ATI R6xx HDMI, Digital Out, HDMI] No sound at all

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