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[Launchpad Bug Tracker <1835449@xxxxxxxxxxxxxxxxxx>]

This bug was fixed in the package linux-firmware - 1.157.22

---------------
linux-firmware (1.157.22) xenial; urgency=medium

  * Bluetooth: hci0: request failed to create LE connection: status 0x0c
    (Intel 9260) (LP: #1835449)
    - linux-firmware: Update firmware file for Intel Bluetooth, 9260

 -- Seth Forshee <seth.forshee@xxxxxxxxxxxxx>  Fri, 12 Jul 2019 07:22:20
-0500

** Changed in: linux-firmware (Ubuntu Xenial)
       Status: Fix Committed => Fix Released

** Changed in: linux-firmware (Ubuntu Bionic)
       Status: Fix Committed => Fix Released

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https://bugs.launchpad.net/bugs/1835449

Title:
  Bluetooth: hci0: request failed to create LE connection: status 0x0c
  (Intel 9260)

Status in linux-firmware package in Ubuntu:
  In Progress
Status in linux-firmware source package in Xenial:
  Fix Released
Status in linux-firmware source package in Bionic:
  Fix Released

Bug description:
  [Impact]
  Intel Wireless-AC 9260 Bluetooth doesn't pair to Bluetooth 5.0 HID
  devices.

  [Fix]
  Bluetooth FW Build REL0329 or newer is known to have fixed this problem
  on Cosmic, and for Disco we have REL0420. On Bionic and Xenial it takes
  a firmware backport from upstream commit
  c2d8f1b7f820b31b6120d741c23db23340a72821. Original patch modified to fix
  conflicts in the WHENCE file.

  [Test Case]
  Verified on hardware platforms with Intel Wireless AC 9260 installed,
  e.g. Dell Precision 7530. Copied the two blobs to /lib/firmware/intel
  and power off the device completely to trigger firmware reload at the
  next boot.

  [Regression Risk]
  Low. Tried following kernels with REL0329 firmware blobs:

    * 4.4.0-154-generic: Xenial, WiFi/Bluetooth doesn't work
    * 4.8.0-58-generic: Xenial, even doesn't boot to console
    * 4.10.0-42-generic: Xenial, WiFi/Bluetooth doesn't work
    * 4.11.0-14-generic: Xenial, WiFi/Bluetooth doesn't work
    * 4.13.0-45-generic: Xenial
    * 4.15.0-54-generic: Xenial, Bionic
    * 4.15.0-1043-oem: Xenial, Bionic

  For those WiFi/Bluetooth doesn't work versions, WiFi/Bluetooth doesn't
  work even with current firmware blobs shipped in Xenial's linux-firmware
  REL0186. So overall, these updated blobs are only loaded by hardware
  requires them, and they doesn't bring harm to known working
  configurations.

  ================ Original Bug Description ================

  Same problem exactly as encountered with Intel 9560 is also happening
  with Intel 9260.

  Update to linux-firmware 1.173.8 did not fix the problem.

  Everything is working fine when using 4.15 kernel, but not for 4.18+
  5.0+.

  Reference problem:
  https://bugs.launchpad.net/ubuntu/+source/linux-firmware/+bug/1829737

  You-Sheng Yang advised to do this by email and it fixed my issue, so I
  think the 9260 driver would need to be updated in the bionic branch
  (it seems to be updated in newer branches).

  --
  Basically you should try copy the latest firmware (ibt-*) under
  https://git.kernel.org/pub/scm/linux/kernel/git/firmware/linux-firmware.git/tree/intel
  , power off the device completely and power on, then have a check on
  bluetooth pairing.
  --

  Linux ideapad 5.0.0-20-generic #21~18.04.1-Ubuntu SMP Thu Jun 27
  04:04:37 UTC 2019 x86_64 x86_64 x86_64 GNU/Linux

  OS: Linux Mint 19.1 Tessa x86_64
  Host: 81JB Lenovo ideapad 730S-13IWL
  Wifi/Bluetooth card is Intel 9260

  xxxx@xxxx:/etc$ dmesg | egrep -i 'blue|firm'
  [    0.099619] Spectre V2 : Enabling Restricted Speculation for firmware calls
  [    0.173124] ACPI: [Firmware Bug]: BIOS _OSI(Linux) query ignored
  [    2.379392] [Firmware Bug]: Invalid critical threshold (0)
  [    2.699758] [drm] Finished loading DMC firmware i915/kbl_dmc_ver1_04.bin (v1.4)
  [    6.259427] iwlwifi 0000:73:00.0: loaded firmware version 43.95eb4e97.0 op_mode iwlmvm
  [    6.337749] Bluetooth: Core ver 2.22
  [    6.337767] Bluetooth: HCI device and connection manager initialized
  [    6.337770] Bluetooth: HCI socket layer initialized
  [    6.337773] Bluetooth: L2CAP socket layer initialized
  [    6.337777] Bluetooth: SCO socket layer initialized
  [    6.368073] Bluetooth: hci0: Firmware revision 0.1 build 201 week 49 2017
  [    7.309936] Bluetooth: BNEP (Ethernet Emulation) ver 1.3
  [    7.309938] Bluetooth: BNEP filters: protocol multicast
  [    7.309943] Bluetooth: BNEP socket layer initialized
  [   17.197268] Bluetooth: RFCOMM TTY layer initialized
  [   17.197275] Bluetooth: RFCOMM socket layer initialized
  [   17.197284] Bluetooth: RFCOMM ver 1.11
  [  104.453159] Bluetooth: hci0: request failed to create LE connection: status 0x0c
  [  104.509148] Bluetooth: hci0: request failed to create LE connection: status 0x0c
  [  104.551340] Bluetooth: hci0: request failed to create LE connection: status 0x0c
  [  104.589338] Bluetooth: hci0: request failed to create LE connection: status 0x0c
  [  104.623323] Bluetooth: hci0: request failed to create LE connection: status 0x0c

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