Comment 3 for bug 459445

Problem solved (for me):

It was my QuickCam. Immediately after unplugging i was able to start Rhythmbox and hear sound.

The question remains:
Why does pulseaudio completely block sound functions if a device which was not even used makes trouble.

[ 8815.020140] 3:3:1: cannot set freq 16000 to ep 0x86
[ 8816.020264] 3:3:1: cannot set freq 16000 to ep 0x86
[ 8817.020132] 3:3:1: cannot set freq 16000 to ep 0x86
[ 8817.044529] usb 1-6: USB disconnect, address 3
[ 8817.044628] 3:3:1: cannot set freq 16000 to ep 0x86
[ 8817.044658] 3:3:1: cannot set freq 16000 to ep 0x86
[ 8817.044691] 3:3:1: cannot set freq 16000 to ep 0x86
[ 8817.044759] 3:3:1: cannot set freq 16000 to ep 0x86
[ 8817.044802] 3:3:1: cannot set freq 16000 to ep 0x86
[ 8817.045343] 3:3:1: usb_set_interface failed
[ 8817.045389] 3:3:1: usb_set_interface failed
[ 8817.045494] 3:3:1: usb_set_interface failed
(last mesage 10x totally, then finished)

In Jaunty it worked like a charm

Btw; i wonder lsusb did not list it with the address 3:3:1...