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[Daniel van Vugt <1545927@xxxxxxxxxxxxxxxxxx>]

Thank you for reporting this bug to Ubuntu.

Ubuntu 14.04 (trusty) reached end-of-standard-support on April 25, 2019.

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** Changed in: bluez (Ubuntu)
       Status: Incomplete => Won't Fix

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https://bugs.launchpad.net/bugs/1545927

Title:
  Bluetooth not functioning on Ubuntu 14.04 running on HP 15-ac122tu

Status in bluez package in Ubuntu:
  Won't Fix

Bug description:
  Ubuntu Version: 14.04 LTS (installed on the system)
  PC Model: HP 15-ac122tu

  The output of the command is mentioned below, which should give the
  current status of the computer.

  naman@naman-HP-Notebook:~$ lsb_release -a; uname -a; lsusb; dmesg | grep -i blue
  No LSB modules are available.
  Distributor ID:	Ubuntu
  Description:	Ubuntu 14.04.3 LTS
  Release:	14.04
  Codename:	trusty
  Linux naman-HP-Notebook 3.19.0-49-generic #55~14.04.1-Ubuntu SMP Fri Jan 22 11:24:31 UTC 2016 x86_64 x86_64 x86_64 GNU/Linux
  Bus 003 Device 002: ID 8087:8001 Intel Corp. 
  Bus 003 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
  Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
  Bus 001 Device 003: ID 05c8:0382 Cheng Uei Precision Industry Co., Ltd (Foxlink) 
  Bus 001 Device 002: ID 0bda:b006 Realtek Semiconductor Corp. 
  Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
  [    2.907648] usb 1-4: Product: Bluetooth Radio 
  [   13.293699] Bluetooth: Core ver 2.20
  [   13.293721] Bluetooth: HCI device and connection manager initialized
  [   13.293725] Bluetooth: HCI socket layer initialized
  [   13.293730] Bluetooth: L2CAP socket layer initialized
  [   13.293741] Bluetooth: SCO socket layer initialized
  [   14.808490] Bluetooth: BNEP (Ethernet Emulation) ver 1.3
  [   14.808495] Bluetooth: BNEP filters: protocol multicast
  [   14.808499] Bluetooth: BNEP socket layer initialized
  [   14.808546] Bluetooth: RFCOMM TTY layer initialized
  [   14.808552] Bluetooth: RFCOMM socket layer initialized
  [   14.808558] Bluetooth: RFCOMM ver 1.11
  [  363.779480] Bluetooth: hci0 urb ffff8801568cdd80 failed to resubmit (2)

  The above is the output after I tried the solution proposed by jeremy (wa113y3s) for a bug reported at the following link.
  https://answers.launchpad.net/ubuntu/+source/bluez/+question/267253

  The output of dmseg | tail is the following.
  naman@naman-HP-Notebook:~$ dmesg | tail
  [   62.006766] [drm:gen8_irq_handler [i915_bpo]] *ERROR* The master control interrupt lied (SDE)!
  [   62.007275] [drm:gen8_irq_handler [i915_bpo]] *ERROR* The master control interrupt lied (SDE)!
  [   62.007784] [drm:gen8_irq_handler [i915_bpo]] *ERROR* The master control interrupt lied (SDE)!
  [   62.008293] [drm:gen8_irq_handler [i915_bpo]] *ERROR* The master control interrupt lied (SDE)!
  [   62.015098] [drm:gen8_irq_handler [i915_bpo]] *ERROR* The master control interrupt lied (SDE)!
  [   62.016109] [drm:gen8_irq_handler [i915_bpo]] *ERROR* The master control interrupt lied (SDE)!
  [   62.016619] [drm:gen8_irq_handler [i915_bpo]] *ERROR* The master control interrupt lied (SDE)!
  [  363.779375] usbcore: deregistering interface driver btusb
  [  363.779480] Bluetooth: hci0 urb ffff8801568cdd80 failed to resubmit (2)
  [  372.324110] usbcore: registered new interface driver btusb

  Appreciate any help here.

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