Public bug reported:

Watching video with VLC Media Player.....sound gets lots of static which
is louder than the voices/music in the video.

At other times, sound disappears completely and requires a log out/log
in to get it back.

ProblemType: Bug
DistroRelease: Ubuntu 12.04
Package: alsa-base 1.0.25+dfsg-0ubuntu1
ProcVersionSignature: Ubuntu 3.2.0-26.41-generic 3.2.19
Uname: Linux 3.2.0-26-generic x86_64
NonfreeKernelModules: fglrx
AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.24.
ApportVersion: 2.0.1-0ubuntu8
Architecture: amd64
Card0.Amixer.info:
 Card hw:0 'U0x46d0x8ce'/'USB Device 0x46d:0x8ce at usb-0000:00:12.2-3.7, high 
speed'
   Mixer name   : 'USB Mixer'
   Components   : 'USB046d:08ce'
   Controls      : 2
   Simple ctrls  : 1
Card0.Amixer.values:
 Simple mixer control 'Mic',0
   Capabilities: cvolume cvolume-joined cswitch cswitch-joined penum
   Capture channels: Mono
   Limits: Capture 0 - 3072
   Mono: Capture 0 [0%] [18.00dB] [on]
Card1.Amixer.info:
 Card hw:1 'Everyman'/'Generic FREETALK Everyman at usb-0000:00:13.0-1, full 
speed'
   Mixer name   : 'USB Mixer'
   Components   : 'USB1460:3286'
   Controls      : 4
   Simple ctrls  : 2
Card2.Amixer.info:
 Card hw:2 'SB'/'HDA ATI SB at 0xfe8f4000 irq 16'
   Mixer name   : 'Realtek ID 887'
   Components   : 'HDA:10ec0887,10280458,00100202'
   Controls      : 7
   Simple ctrls  : 4
Card3.Amixer.info:
 Card hw:3 'Generic'/'HD-Audio Generic at 0xfe9bc000 irq 43'
   Mixer name   : 'ATI R6xx HDMI'
   Components   : 'HDA:1002aa01,00aa0100,00100200'
   Controls      : 6
   Simple ctrls  : 1
Card3.Amixer.values:
 Simple mixer control 'IEC958',0
   Capabilities: pswitch pswitch-joined penum
   Playback channels: Mono
   Mono: Playback [on]
Date: Fri Jul  6 21:43:44 2012
InstallationMedia: Ubuntu 12.04 LTS "Precise Pangolin" - Release amd64 
(20120425)
PackageArchitecture: all
SourcePackage: alsa-driver
Symptom: audio
Symptom_Card: Redwood HDMI Audio [Radeon HD 5000 Series] - HD-Audio Generic
Symptom_Jack: Digital Out, HDMI
Symptom_Type: Sound works for a while, then breaks
Title: [Studio XPS 7100, ATI R6xx HDMI, Digital Out, HDMI] fails after a while
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 09/10/2010
dmi.bios.vendor: Dell Inc.
dmi.bios.version: A06
dmi.board.name: 0NWWY0
dmi.board.vendor: Dell Inc.
dmi.board.version: A00
dmi.chassis.type: 3
dmi.chassis.vendor: Dell Inc.
dmi.modalias: 
dmi:bvnDellInc.:bvrA06:bd09/10/2010:svnDellInc.:pnStudioXPS7100:pvr:rvnDellInc.:rn0NWWY0:rvrA00:cvnDellInc.:ct3:cvr:
dmi.product.name: Studio XPS 7100
dmi.sys.vendor: Dell Inc.
mtime.conffile..etc.modprobe.d.alsa.base.conf: 2012-07-05T16:35:38.248299

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


** Tags: amd64 apport-bug precise

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https://bugs.launchpad.net/bugs/1022001

Title:
  [Studio XPS 7100, ATI R6xx HDMI, Digital Out, HDMI] fails after a
  while

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