Public bug reported:

Binary package hint: bluez

USB dongle is discovered and pairing works, so does "hcitool scan",
however

#sdptool browse 00:1B:AF:xx:xx:xx
Failed to connect to SDP server on 00:1B:AF:xx:xx:xx: File descriptor in bad 
state

Also searching for devices with gnome-bluez doesn't turn up any device
(it does however when trying OBEX Push, which fails when transmitting
thoug)

This problem has existed at least since Jaunty. Today there was a
version bump in the karmic bluez stack but this didn't help. On my Asus
EEE where bluetooth is integrated it does work though with the
integrated bluetooth.

I suppose it is not a kernel bug as pairing with PIN works...

$ dmesg
[10672.488560] Bluetooth: Generic Bluetooth USB driver ver 0.5
[10672.488702] usbcore: registered new interface driver btusb
[10672.594900] Bluetooth: BNEP (Ethernet Emulation) ver 1.3
[10672.594904] Bluetooth: BNEP filters: protocol multicast
[10672.681922] Bridge firewalling registered

$ uname -a
Linux miraculix 2.6.31-9-generic #29-Ubuntu SMP Sun Aug 30 17:39:26 UTC 2009 
x86_64 GNU/Linux

Bluetooth dongle:
Bus 004 Device 002: ID 1caa:0001  

$ hcitool dev
Devices:
        hci0    00:1F:81:00:00:01

$hciconfig
hci0:   Type: USB
        BD Address: 00:1F:81:00:00:01 ACL MTU: 339:6 SCO MTU: 180:1
        UP RUNNING PSCAN ISCAN 
        RX bytes:3330 acl:13 sco:0 events:109 errors:0
        TX bytes:924 acl:15 sco:0 commands:56 errors:0

$hcitool inq
Inquiring ...
        00:1B:AF:xx:xx:xxE      clock offset: 0x38a5    class: 0x5a020c

$ sudo hcitool info 00:1B:AF:xx:xx:xx
[sudo] password for mabl: 
Requesting information ...
        BD Address:  00:1B:AF:xx:xx:xx
        Device Name: Nokia 6110 Navigator
        LMP Version: 2.0 (0x3) LMP Subversion: 0x2222
        Manufacturer: Broadcom Corporation (15)
        Features: 0xbf 0xee 0x0f 0x4e 0x98 0x19 0x00 0x00
                <3-slot packets> <5-slot packets> <encryption> <slot offset> 
                <timing accuracy> <role switch> <sniff mode> <RSSI> 
                <channel quality> <SCO link> <HV3 packets> <u-law log> 
                <A-law log> <CVSD> <paging scheme> <power control> 
                <transparent SCO> <EDR ACL 2 Mbps> <EDR ACL 3 Mbps> 
                <enhanced iscan> <inquiry with RSSI> <AFH cap. slave> 
                <AFH class. slave> <3-slot EDR ACL> <5-slot EDR ACL> 
                <AFH cap. master> <AFH class. master> 


$ dpkg -l | grep blue
ii  blueproximity                        1.2.5-3
ii  bluetooth                            4.51-0ubuntu1
ii  bluez                                4.51-0ubuntu1
ii  bluez-alsa                           4.51-0ubuntu1
ii  bluez-cups                           4.51-0ubuntu1
ii  bluez-gstreamer                      4.51-0ubuntu1
ii  bluez-utils                          4.51-0ubuntu1
ii  gnome-bluetooth                      2.27.8-0ubuntu1
ii  gnome-brave-icon-theme               5.3-1
ii  kdebluetooth                         1:0.3-0ubuntu6
ii  libbluetooth3                        4.51-0ubuntu1
ii  libgnome-bluetooth7                  2.27.8-0ubuntu1
ii  pulseaudio-module-bluetooth          1:0.9.16~test6-3-g57e1-0ubuntu2
ii  python-bluez                         0.16-1ubuntu1


$ sudo lsusb -v -d 1caa:0001
Bus 004 Device 002: ID 1caa:0001  
Device Descriptor:
  bLength                18
  bDescriptorType         1
  bcdUSB               2.00
  bDeviceClass          224 Wireless
  bDeviceSubClass         1 Radio Frequency
  bDeviceProtocol         1 Bluetooth
  bMaxPacketSize0        64
  idVendor           0x1caa 
  idProduct          0x0001 
  bcdDevice           19.15
  iManufacturer           0 
  iProduct                0 
  iSerial                 0 
  bNumConfigurations      1
  Configuration Descriptor:
    bLength                 9
    bDescriptorType         2
    wTotalLength          193
    bNumInterfaces          3
    bConfigurationValue     1
    iConfiguration          0 
    bmAttributes         0xc0
      Self Powered
    MaxPower                0mA
    Interface Descriptor:
      bLength                 9
      bDescriptorType         4
      bInterfaceNumber        0
      bAlternateSetting       0
      bNumEndpoints           3
      bInterfaceClass       224 Wireless
      bInterfaceSubClass      1 Radio Frequency
      bInterfaceProtocol      1 Bluetooth
      iInterface              0 
      Endpoint Descriptor:
        bLength                 7
        bDescriptorType         5
        bEndpointAddress     0x81  EP 1 IN
        bmAttributes            3
          Transfer Type            Interrupt
          Synch Type               None
          Usage Type               Data
        wMaxPacketSize     0x0010  1x 16 bytes
        bInterval               1
      Endpoint Descriptor:
        bLength                 7
        bDescriptorType         5
        bEndpointAddress     0x82  EP 2 IN
        bmAttributes            2
          Transfer Type            Bulk
          Synch Type               None
          Usage Type               Data
        wMaxPacketSize     0x0040  1x 64 bytes
        bInterval               0
      Endpoint Descriptor:
        bLength                 7
        bDescriptorType         5
        bEndpointAddress     0x02  EP 2 OUT
        bmAttributes            2
          Transfer Type            Bulk
          Synch Type               None
          Usage Type               Data
        wMaxPacketSize     0x0040  1x 64 bytes
        bInterval               0
    Interface Descriptor:
      bLength                 9
      bDescriptorType         4
      bInterfaceNumber        1
      bAlternateSetting       0
      bNumEndpoints           2
      bInterfaceClass       224 Wireless
      bInterfaceSubClass      1 Radio Frequency
      bInterfaceProtocol      1 Bluetooth
      iInterface              0 
      Endpoint Descriptor:
        bLength                 7
        bDescriptorType         5
        bEndpointAddress     0x83  EP 3 IN
        bmAttributes            1
          Transfer Type            Isochronous
          Synch Type               None
          Usage Type               Data
        wMaxPacketSize     0x0020  1x 32 bytes
        bInterval               1
      Endpoint Descriptor:
        bLength                 7
        bDescriptorType         5
        bEndpointAddress     0x03  EP 3 OUT
        bmAttributes            1
          Transfer Type            Isochronous
          Synch Type               None
          Usage Type               Data
        wMaxPacketSize     0x0020  1x 32 bytes
        bInterval               1
    Interface Descriptor:
      bLength                 9
      bDescriptorType         4
      bInterfaceNumber        1
      bAlternateSetting       1
      bNumEndpoints           2
      bInterfaceClass       224 Wireless
      bInterfaceSubClass      1 Radio Frequency
      bInterfaceProtocol      1 Bluetooth
      iInterface              0 
      Endpoint Descriptor:
        bLength                 7
        bDescriptorType         5
        bEndpointAddress     0x83  EP 3 IN
        bmAttributes            1
          Transfer Type            Isochronous
          Synch Type               None
          Usage Type               Data
        wMaxPacketSize     0x0009  1x 9 bytes
        bInterval               1
      Endpoint Descriptor:
        bLength                 7
        bDescriptorType         5
        bEndpointAddress     0x03  EP 3 OUT
        bmAttributes            1
          Transfer Type            Isochronous
          Synch Type               None
          Usage Type               Data
        wMaxPacketSize     0x0009  1x 9 bytes
        bInterval               1
    Interface Descriptor:
      bLength                 9
      bDescriptorType         4
      bInterfaceNumber        1
      bAlternateSetting       2
      bNumEndpoints           2
      bInterfaceClass       224 Wireless
      bInterfaceSubClass      1 Radio Frequency
      bInterfaceProtocol      1 Bluetooth
      iInterface              0 
      Endpoint Descriptor:
        bLength                 7
        bDescriptorType         5
        bEndpointAddress     0x83  EP 3 IN
        bmAttributes            1
          Transfer Type            Isochronous
          Synch Type               None
          Usage Type               Data
        wMaxPacketSize     0x0011  1x 17 bytes
        bInterval               1
      Endpoint Descriptor:
        bLength                 7
        bDescriptorType         5
        bEndpointAddress     0x03  EP 3 OUT
        bmAttributes            1
          Transfer Type            Isochronous
          Synch Type               None
          Usage Type               Data
        wMaxPacketSize     0x0011  1x 17 bytes
        bInterval               1
    Interface Descriptor:
      bLength                 9
      bDescriptorType         4
      bInterfaceNumber        1
      bAlternateSetting       3
      bNumEndpoints           2
      bInterfaceClass       224 Wireless
      bInterfaceSubClass      1 Radio Frequency
      bInterfaceProtocol      1 Bluetooth
      iInterface              0 
      Endpoint Descriptor:
        bLength                 7
        bDescriptorType         5
        bEndpointAddress     0x83  EP 3 IN
        bmAttributes            1
          Transfer Type            Isochronous
          Synch Type               None
          Usage Type               Data
        wMaxPacketSize     0x0019  1x 25 bytes
        bInterval               1
      Endpoint Descriptor:
        bLength                 7
        bDescriptorType         5
        bEndpointAddress     0x03  EP 3 OUT
        bmAttributes            1
          Transfer Type            Isochronous
          Synch Type               None
          Usage Type               Data
        wMaxPacketSize     0x0019  1x 25 bytes
        bInterval               1
    Interface Descriptor:
      bLength                 9
      bDescriptorType         4
      bInterfaceNumber        1
      bAlternateSetting       4
      bNumEndpoints           2
      bInterfaceClass       224 Wireless
      bInterfaceSubClass      1 Radio Frequency
      bInterfaceProtocol      1 Bluetooth
      iInterface              0 
      Endpoint Descriptor:
        bLength                 7
        bDescriptorType         5
        bEndpointAddress     0x83  EP 3 IN
        bmAttributes            1
          Transfer Type            Isochronous
          Synch Type               None
          Usage Type               Data
        wMaxPacketSize     0x0021  1x 33 bytes
        bInterval               1
      Endpoint Descriptor:
        bLength                 7
        bDescriptorType         5
        bEndpointAddress     0x03  EP 3 OUT
        bmAttributes            1
          Transfer Type            Isochronous
          Synch Type               None
          Usage Type               Data
        wMaxPacketSize     0x0021  1x 33 bytes
        bInterval               1
    Interface Descriptor:
      bLength                 9
      bDescriptorType         4
      bInterfaceNumber        1
      bAlternateSetting       5
      bNumEndpoints           2
      bInterfaceClass       224 Wireless
      bInterfaceSubClass      1 Radio Frequency
      bInterfaceProtocol      1 Bluetooth
      iInterface              0 
      Endpoint Descriptor:
        bLength                 7
        bDescriptorType         5
        bEndpointAddress     0x83  EP 3 IN
        bmAttributes            1
          Transfer Type            Isochronous
          Synch Type               None
          Usage Type               Data
        wMaxPacketSize     0x0031  1x 49 bytes
        bInterval               1
      Endpoint Descriptor:
        bLength                 7
        bDescriptorType         5
        bEndpointAddress     0x03  EP 3 OUT
        bmAttributes            1
          Transfer Type            Isochronous
          Synch Type               None
          Usage Type               Data
        wMaxPacketSize     0x0031  1x 49 bytes
        bInterval               1
    Interface Descriptor:
      bLength                 9
      bDescriptorType         4
      bInterfaceNumber        2
      bAlternateSetting       0
      bNumEndpoints           0
      bInterfaceClass       254 Application Specific Interface
      bInterfaceSubClass      1 Device Firmware Update
      bInterfaceProtocol      0 
      iInterface              0 
      Device Firmware Upgrade Interface Descriptor:
        bLength                             7
        bDescriptorType                    33
        bmAttributes                        7
          Will Not Detach
          Manifestation Tolerant
          Upload Supported
          Download Supported
        wDetachTimeout                   5000 milliseconds
        wTransferSize                    1023 bytes
Device Status:     0x0000
  (Bus Powered)

** Affects: bluez (Ubuntu)
     Importance: Undecided
         Status: New

-- 
[karmic] sdptool failes with bluetooth dongle 
https://bugs.launchpad.net/bugs/424225
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