Public bug reported:

Moving the speakers between USB ports sometimes forces system to
recognise speakers, but this is irratic and often doesn't work. Once the
computer is restarted, speakers disappear from sounds settings.

Speakers worked fine in 11.04.

ProblemType: Bug
DistroRelease: Ubuntu 11.10
Package: alsa-base 1.0.24+dfsg-0ubuntu2
ProcVersionSignature: Ubuntu 3.0.0-12.20-generic-pae 3.0.4
Uname: Linux 3.0.0-12-generic-pae i686
AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.24.
AplayDevices:
 **** List of PLAYBACK Hardware Devices ****
 card 0: Intel [HDA Intel], device 0: ALC662 rev1 Analog [ALC662 rev1 Analog]
   Subdevices: 1/1
   Subdevice #0: subdevice #0
ApportVersion: 1.23-0ubuntu3
Architecture: i386
ArecordDevices:
 **** List of CAPTURE Hardware Devices ****
 card 0: Intel [HDA Intel], device 0: ALC662 rev1 Analog [ALC662 rev1 Analog]
   Subdevices: 1/1
   Subdevice #0: subdevice #0
AudioDevicesInUse:
 USER        PID ACCESS COMMAND
 /dev/snd/controlC0:  jmccorkindale   1462 F.... pulseaudio
Card0.Amixer.info:
 Card hw:0 'Intel'/'HDA Intel at 0xfdff8000 irq 44'
   Mixer name   : 'Realtek ALC662 rev1'
   Components   : 'HDA:10ec0662,103c2a78,00100101'
   Controls      : 30
   Simple ctrls  : 19
Date: Fri Oct 14 17:22:28 2011
InstallationMedia: Ubuntu 11.04 "Natty Narwhal" - Release i386 (20110427.1)
PackageArchitecture: all
ProcEnviron:
 PATH=(custom, no user)
 LANG=en_AU.UTF-8
 SHELL=/bin/bash
SourcePackage: alsa-driver
Symptom: audio
Title: USB sound card not detected
UpgradeStatus: Upgraded to oneiric on 2011-10-14 (0 days ago)
dmi.bios.date: 11/10/2008
dmi.bios.vendor: Phoenix Technologies, LTD
dmi.bios.version: 5.16
dmi.board.name: Boston
dmi.board.vendor: MSI
dmi.board.version: 1.0
dmi.chassis.type: 3
dmi.chassis.vendor: Hewlett-Packard
dmi.modalias: 
dmi:bvnPhoenixTechnologies,LTD:bvr5.16:bd11/10/2008:svnCompaq-Presario:pnNC862AA-ABGSR5820AN:pvr:rvnMSI:rnBoston:rvr1.0:cvnHewlett-Packard:ct3:cvr:
dmi.product.name: NC862AA-ABG SR5820AN
dmi.sys.vendor: Compaq-Presario
mtime.conffile..etc.modprobe.d.alsa.base.conf: 2011-10-08T16:05:40.392412

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


** Tags: apport-bug i386 oneiric running-unity

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https://bugs.launchpad.net/bugs/873871

Title:
  Z-5 Speakers not detected

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