Wait for 16.04 and it will likely work. The firmware from the launchpad answer site didn't cause the errors in dmesg as the firmware didn't get loaded because your bluetooth is Realtek and the firmware would only get loaded for the correct Broadcom bluetooth device
I actually think this is fixed in Ubuntu 15.10 with the Realtek firmware and 4.2 kernel -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to bluez in Ubuntu. 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: New 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. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/bluez/+bug/1545927/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp