Public bug reported:

My specific dongle has worked flawlessly on 11.04, since upgrading, my
system no longer recognizes it.

blueman-applet reports no adapters found.

hcitool dev reports nothing, just "Devices:"

lsusb finds this however:
Bus 006 Device 002: ID 1131:1004 Integrated System Solution Corp. Bluetooth 
Device

If I pull the dongle out, the applet disapears.  If the dongle is not
evident on boot, the applet will not start.

hciconfig show this:
hci0:   Type: BR/EDR  Bus: USB
        BD Address: [snip]  ACL MTU: 1021:4  SCO MTU: 48:10
        DOWN 
        RX bytes:2270 acl:0 sco:0 events:80 errors:0
        TX bytes:365 acl:0 sco:0 commands:85 errors:0

Tailing syslog while attempting to `hciconfig hci0 up`shows this:
May  1 13:44:44 beta kernel: [  137.992056] Bluetooth: hci0 command tx timeout

** Affects: ubuntu
     Importance: Undecided
         Status: New

** Package changed: linux-firmware (Ubuntu) => ubuntu

** Description changed:

  My specific dongle has worked flawlessly on 11.04, since upgrading, my
  system no longer recognizes it.
  
  blueman-applet reports no adapters found.
  
  hcitool dev reports nothing, just "Devices:"
  
  lsusb finds this however:
  Bus 006 Device 002: ID 1131:1004 Integrated System Solution Corp. Bluetooth 
Device
  
  If I pull the dongle out, the applet disapears.  If the dongle is not
  evident on boot, the applet will not start.
+ 
+ hciconfig show this:
+ hci0: Type: BR/EDR  Bus: USB
+       BD Address: [snip]  ACL MTU: 1021:4  SCO MTU: 48:10
+       DOWN 
+       RX bytes:2270 acl:0 sco:0 events:80 errors:0
+       TX bytes:365 acl:0 sco:0 commands:85 errors:0
+ 
+ Tailing syslog while attempting to `hciconfig hci0 up`shows this:
+ May  1 13:44:44 beta kernel: [  137.992056] Bluetooth: hci0 command tx timeout

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https://bugs.launchpad.net/bugs/992757

Title:
  Bluetooth Adapter not recognized (precise)

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