Comment 2 for bug 738051

StacktraceTop:
 sound_service_dbus_update_sound_state (self=0x847fa60, new_state=UNAVAILABLE) at sound-service-dbus.c:252
 device_sink_deactivated (self=0x8481768) at device.c:244
 pm_context_state_callback (c=0x8495b78, userdata=0x8481768) at pulseaudio-mgr.c:311
 pa_context_set_state (c=0x8495b78, st=PA_CONTEXT_FAILED) at pulse/context.c:302
 pa_context_fail (c=0x8495b78, error=11) at pulse/context.c:325