post the pulseaudio verbose log

try hda-jack-sense-test to find out whether your acer aspire e500 support jack 
detection of front panel headphone and mic

alc880 is a 8 channels codec and headphone need to share with line out
jack  (rear panel green jack) and there is no headphone playback volume
control


Simple mixer control 'Headphone',0
  Capabilities: pswitch penum
  Playback channels: Front Left - Front Right
  Mono:
  Front Left: Playback [on]
  Front Right: Playback [on]


Node 0x1b [Pin Complex] wcaps 0x40018d: Stereo Amp-Out
  Control: name="Headphone Playback Switch", index=0, device=0
    ControlAmp: chs=3, dir=Out, idx=0, ofs=0
  Amp-Out caps: ofs=0x00, nsteps=0x00, stepsize=0x00, mute=1
  Amp-Out vals:  [0x00 0x00]
  Pincap 0x0000133f: IN OUT HP Detect Trigger ImpSense
    Vref caps: HIZ 50 80
  Pin Default 0x0221411f: [Jack] HP Out at Ext Front
    Conn = 1/8, Color = Green
    DefAssociation = 0x1, Sequence = 0xf
    Misc = NO_PRESENCE
  Pin-ctls: 0xc0: OUT HP VREF_HIZ
  Unsolicited: tag=04, enabled=1
  Connection: 1
     0x13

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You received this bug notification because you are a member of Desktop
Packages, which is subscribed to pulseaudio in Ubuntu.
https://bugs.launchpad.net/bugs/878394

Title:
  after 11.10 upgrade: lost hardware device

Status in “pulseaudio” package in Ubuntu:
  Confirmed

Bug description:
  A popup Startup message like HDA ULI M5461 not available, falling back to 
default and a KDE message "Removed Sound Devices". In Sound Settings there is 
no Hardware device.
  Kernel modules and hardware seems OK. I can play soundfiles through alsas 
aplay and amarok.

  ProblemType: Bug
  DistroRelease: Ubuntu 11.10
  Package: pulseaudio 1:1.0-0ubuntu3
  ProcVersionSignature: Ubuntu 3.0.0-12.20-generic 3.0.4
  Uname: Linux 3.0.0-12-generic i686
  AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.24.
  ApportVersion: 1.23-0ubuntu3
  Architecture: i386
  Card0.Amixer.info:
   Card hw:0 'M5461'/'HDA ULI M5461 at 0xff6f8000 irq 22'
     Mixer name : 'Realtek ALC880'
     Components : 'HDA:10ec0880,08800000,00100800'
     Controls      : 40
     Simple ctrls  : 23
  CheckboxSubmission: 6192b41f1a593a6ab8268844ab7b06b1
  CheckboxSystem: 13c6d06e5a20fde991903264fe6f2baa
  Date: Wed Oct 19 19:40:38 2011
  PulseSinks: Error: command ['pacmd', 'list-sinks'] failed with exit code 1: 
No PulseAudio daemon running, or not running as session daemon.
  PulseSources: Error: command ['pacmd', 'list-sources'] failed with exit code 
1: No PulseAudio daemon running, or not running as session daemon.
  SourcePackage: pulseaudio
  UpgradeStatus: Upgraded to oneiric on 2011-10-17 (2 days ago)
  dmi.bios.date: 09/07/2005
  dmi.bios.vendor: American Megatrends Inc.
  dmi.bios.version: R01-D4
  dmi.board.name: ERC410M���������������
  dmi.board.vendor: ACER
  dmi.board.version: To be filled by O.E.M.
  dmi.chassis.asset.tag: Asset tag number:at least 22 digits
  dmi.chassis.type: 3
  dmi.chassis.vendor: ACER
  dmi.chassis.version: To Be Filled By O.E.M.
  dmi.modalias: 
dmi:bvnAmericanMegatrendsInc.:bvrR01-D4:bd09/07/2005:svnACER:pnAspireE500:pvrToBeFilledByO.E.M.:rvnACER:rnERC410M:rvrTobefilledbyO.E.M.:cvnACER:ct3:cvrToBeFilledByO.E.M.:
  dmi.product.name: Aspire E500
  dmi.product.version: To Be Filled By O.E.M.
  dmi.sys.vendor: ACER

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