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[Mathew Hodson <mathew.hodson@xxxxxxxxx>]

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https://bugs.launchpad.net/bugs/268502

Title:
  Bluetooth doesn't work (hci_cmd_task: hci0 command tx timeout)

Status in Genesi Efika MX Support:
  New
Status in The Linux Kernel:
  In Progress
Status in “bluez” package in Ubuntu:
  Invalid
Status in “linux” package in Ubuntu:
  Fix Released
Status in “bluez” source package in Intrepid:
  Invalid
Status in “linux” source package in Intrepid:
  Fix Released
Status in “bluez” source package in Jaunty:
  Invalid
Status in “linux” source package in Jaunty:
  Fix Released
Status in “bluez” package in Debian:
  Fix Released
Status in “bluez-utils” package in Debian:
  New
Status in “linux” package in Fedora:
  Unknown

Bug description:
  SRU justification:

  Impact: A series of bluetooth dongles [1] do not work properly with the new
          btusb driver which replaced usb_hci. This has been fixed upstream
          (2.6.29-rc3). The required changes are all local to the btusb driver.

  Fix: The following three patches are required to fix this (two as prerequisite
       and one for the actual fix). The fix deviates from upstream by the change
       of a version number and the missing resume part which does not exist for
       Intrepid nor Jaunty.

  Test: Fix has been tested by bug reporters.

  ---

  Bluetooth doesn't work for at least the following devices:
  ID 1131:1001 Integrated System Solution Corp. KY-BT100 Bluetooth Adapter
  ID 1131:1004 Integrated System Solution Corp. Bluetooth Device
  ID 2001:f111 D-Link Corp. [hex] DBT-122 Bluetooth adapter
  ID 0a5c:200a Broadcom Corp. Bluetooth dongle

  They don't work properly with the newer btusb driver, which replaced
  hci_usb by default in 2.6.27. This hasn't been fixed upstream as of
  v2.6.29-rc3.

  Original message below:

  Association with Bluetooth works using kernel 2.6.26, since the
  updates to 2.6.27 (both -1 and -2) association fails. I can scan and
  see bluetooth devices but not pair.

  Using my phone, I start the association process, the phone asks for a
  passkey, and in 2.6.26 the popup window appears normally allowing me
  to enter the passkey. In 2.6.27 the dialog box never appears.

  If I use hcitool:

  :~$ sudo hcitool cc 00:1B:59:96:A6:DD
  :~$ sudo hcitool auth 00:1B:59:96:A6:DD
  HCI authentication request failed: Connection timed out

  the dialog box appears very very briefly then vanishes.

  dmesg shows a couple of problems:

  [25791.306170] btusb_intr_complete: hci0 urb ffff88004dd0fb40 failed to resubmit (19)
  [25791.315446] btusb_send_frame: hci0 urb ffff880048542840 submission failed

  and the syslog shows that there was an attempt to associate:

  Sep 23 08:16:59 charlie hcid[5903]: link_key_request (sba=00:11:67:9C:59:B5, dba=00:1B:59:96:A6:DD)
  Sep 23 08:16:59 charlie hcid[5903]: pin_code_request (sba=00:11:67:9C:59:B5, dba=00:1B:59:96:A6:DD)

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