Public bug reported:

Hi,
Please help me with this issue. Sound has always been a problem with my system. 
I try various troubleshoots suggested online. Twice, those worked but again 
sound is not working.
I have Acer Aspire 4830T-6642, snd-hda-intel with Conexant driver.
Thanks,
IR

ProblemType: Bug
DistroRelease: Ubuntu 11.04
Package: alsa-base 1.0.24+dfsg-0ubuntu1
ProcVersionSignature: Ubuntu 2.6.38-11.50-generic-pae 2.6.38.8
Uname: Linux 2.6.38-11-generic-pae i686
AlsaVersion:
 Advanced Linux Sound Architecture Driver Version 1.0.24.
 Compiled on Aug 25 2011 for kernel 2.6.38-11-generic-pae (SMP).
Architecture: i386
ArecordDevices:
 **** List of CAPTURE Hardware Devices ****
 card 0: PCH [HDA Intel PCH], device 0: CONEXANT Analog [CONEXANT Analog]
   Subdevices: 1/1
   Subdevice #0: subdevice #0
AudioDevicesInUse:
 USER        PID ACCESS COMMAND
 /dev/snd/controlC0:  ish        1420 F.... pulseaudio
 /dev/snd/pcmC0D0p:   ish        1420 F...m pulseaudio
Card0.Amixer.info:
 Card hw:0 'PCH'/'HDA Intel PCH at 0xc0800000 irq 47'
   Mixer name   : 'Intel CougarPoint HDMI'
   Components   : 'HDA:14f1506c,1025054f,00100000 
HDA:80862805,80860101,00100000'
   Controls      : 25
   Simple ctrls  : 13
Date: Fri Sep 23 17:51:14 2011
InstallationMedia: Ubuntu 11.04 "Natty Narwhal" - Release i386 (20110427.1)
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:PCH failed
Symptom_Card: Internal Audio - HDA Intel PCH
Symptom_DevicesInUse: 1420
Symptom_Jack: Speaker, Internal
Symptom_Type: No sound at all
Title: [Aspire 4830T, Conexant CX20588, Speaker, Internal] No sound at all
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 05/06/2011
dmi.bios.vendor: Acer
dmi.bios.version: V1.04
dmi.board.asset.tag: Base Board Asset Tag
dmi.board.name: JM40_HR
dmi.board.vendor: Acer
dmi.board.version: Base Board Version
dmi.chassis.type: 10
dmi.chassis.vendor: Acer
dmi.chassis.version: V1.04
dmi.modalias: 
dmi:bvnAcer:bvrV1.04:bd05/06/2011:svnAcer:pnAspire4830T:pvrV1.04:rvnAcer:rnJM40_HR:rvrBaseBoardVersion:cvnAcer:ct10:cvrV1.04:
dmi.product.name: Aspire 4830T
dmi.product.version: V1.04
dmi.sys.vendor: Acer

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


** Tags: apport-bug i386 natty

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Title:
  [Aspire 4830T, Conexant CX20588, Speaker, Internal] No sound at all

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