gnome-volume-control cannot detect USB sound output correctly

[cliftonlai]

I have a Dell inspiron mini 1012, plug and unplug the usb speaker, gnome-volume-control cannot detect sound output device correctly.
insert usb speaker and open gnome-volume-control, click output tab, choose usb speaker radio button, close the gnome-volume-control. Playing music, and sound from usb speaker, and then unplug the usb speaker, sound from internal speaker, re-insert the usb speaker, sound from usb speaker. However, open gnome-volume-control, user will see current sound output device is internal speaker not usb speaker. Thanks

ProblemType: Bug
DistroRelease: Ubuntu 10.04
Package: alsa-base 1.0.22.1+dfsg-0ubuntu3
ProcVersionSignature: Ubuntu 2.6.32-22.36-generic 2.6.32.11+drm33.2
Uname: Linux 2.6.32-22-generic i686
NonfreeKernelModules: wl
AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.21.
Architecture: i386
ArecordDevices:
 **** List of CAPTURE Hardware Devices ****
 card 0: Intel [HDA Intel], device 0: ALC272 Analog [ALC272 Analog]
   Subdevices: 1/1
   Subdevice #0: subdevice #0
AudioDevicesInUse:
 USER PID ACCESS COMMAND
 /dev/snd/controlC1: ubuntu 1232 F.... pulseaudio
 /dev/snd/controlC0: ubuntu 1232 F.... pulseaudio
Card0.Amixer.info:
 Card hw:0 'Intel'/'HDA Intel at 0xf0500000 irq 22'
   Mixer name : 'Realtek ALC272'
   Components : 'HDA:10ec0272,1028041a,00100001'
   Controls : 14
   Simple ctrls : 8
Card1.Amixer.info:
 Card hw:1 'Speaker'/'USB Speaker at usb-0000:00:1d.1-1, full speed'
   Mixer name : 'USB Mixer'
   Components : 'USB0c76:160c'
   Controls : 2
   Simple ctrls : 1
Date: Tue Jun 29 19:00:37 2010
InstallationMedia: Ubuntu-Netbook 10.04 "Lucid Lynx" - Release i386 (20100429.4)
PackageArchitecture: all
ProcEnviron:
 LANG=en_US.UTF-8
 SHELL=/bin/bash
SourcePackage: alsa-driver
dmi.bios.date: 02/22/2010
dmi.bios.vendor: Dell Inc.
dmi.bios.version: A06
dmi.board.name: 0D3J9P
dmi.board.vendor: Dell Inc.
dmi.board.version: A06
dmi.chassis.type: 8
dmi.chassis.vendor: Dell Inc.
dmi.chassis.version: A06
dmi.modalias: dmi:bvnDellInc.:bvrA06:bd02/22/2010:svnDellInc.:pnInspiron1012:pvrA06:rvnDellInc.:rn0D3J9P:rvrA06:cvnDellInc.:ct8:cvrA06:
dmi.product.name: Inspiron 1012
dmi.product.version: A06
dmi.sys.vendor: Dell Inc.

[Keng-Yu Lin (lexical)]

some similar bug reports in bug #585321 and bug #583194