Well i have a Blueooth dongle with an BCM2046 IC intrregated, my problem is that when i connect it, Ubuntu recognize it, but it don't work whe i try to scan or scan the PC from other device, i replaced the default Gnome Bluetooth manager and i installed Blueman, but the problem presists.

The Bluetooth LED indicator appears to be "working".

I'm using 11.10 Oneiric Ocelot

hcitool dev:

 Devices:
    hci0    89:21:XX:XX:XX:XX
lsusb:

 Bus 002 Device 003: ID 0a5c:4500 Broadcom Corp. BCM2046B1 USB 2.0 Hub (part of   BCM2046 Bluetooth)
 Bus 002 Device 004: ID 0a5c:2100 Broadcom Corp. Bluetooth 2.0+eDR dongle

hciconfig -a:
 hci0:  Type: BR/EDR  Bus: USB
    BD Address: 89:21:XX:XX:XX:XX  ACL MTU: 1017:8  SCO MTU: 64:0
    UP RUNNING PSCAN ISCAN 
    RX bytes:1329 acl:0 sco:0 events:40 errors:0
    TX bytes:671 acl:0 sco:0 commands:35 errors:0
    Features: 0xff 0xff 0x8d 0xfe 0x9b 0xf9 0x00 0x80
    Packet type: DM1 DM3 DM5 DH1 DH3 DH5 HV1 HV2 HV3 
    Link policy: RSWITCH HOLD SNIFF PARK 
    Link mode: SLAVE ACCEPT 
    Name: 'ubuntu-0'
    Class: 0x4a0100
    Service Classes: Networking, Capturing, Telephony
Device Class: Computer, Uncategorized
HCI Version: 2.0 (0x3)  Revision: 0x4000
LMP Version: 2.0 (0x3)  Subversion: 0x430e
Manufacturer: Broadcom Corporation (15)

Sorry for my English and thanks for any hints.