Bdtyktl

after upgrade to ubuntu 16.04 i can't turn on bluetooth on my laptop .
try reinstall bluez and other bluetooth application same as blueman and bluetooth but don't solve problem

service bluetooth status

● bluetooth.service - Bluetooth service

   Loaded: loaded (/lib/systemd/system/bluetooth.service; enabled; vendor preset: enabled)

   Active: active (running) since Sun 2016-05-15 10:14:59 IRDT; 5h 40min ago

     Docs: man:bluetoothd(8)

 Main PID: 1104 (bluetoothd)

   Status: "Running"

    Tasks: 1 (limit: 512)

   CGroup: /system.slice/bluetooth.service

           └─1104 /usr/lib/bluetooth/bluetoothd



May 15 10:15:03 morteza-CX61-2PC bluetoothd[1104]: Not enough free handles to register service

May 15 10:15:03 morteza-CX61-2PC bluetoothd[1104]: Not enough free handles to register service

May 15 10:15:03 morteza-CX61-2PC bluetoothd[1104]: Sap driver initialization failed.

May 15 10:15:03 morteza-CX61-2PC bluetoothd[1104]: sap-server: Operation not permitted (1)

May 15 10:15:04 morteza-CX61-2PC bluetoothd[1104]: Loading LTKs timed out for hci0

May 15 10:15:41 morteza-CX61-2PC bluetoothd[1104]: Failed to set mode: Not Powered (0x0f)

May 15 10:15:41 morteza-CX61-2PC bluetoothd[1104]: Failed to get connections: Not Powered (0x0f)

May 15 10:16:52 morteza-CX61-2PC bluetoothd[1104]: Failed to set mode: Failed (0x03)

May 15 10:17:02 morteza-CX61-2PC bluetoothd[1104]: Failed to set mode: Failed (0x03)

May 15 14:13:45 morteza-CX61-2PC bluetoothd[1104]: Failed to set mode: Failed (0x03)

lsusb

Bus 002 Device 002: ID 8087:8000 Intel Corp. 

Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub

Bus 001 Device 002: ID 8087:8008 Intel Corp. 

Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub

Bus 004 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub

Bus 003 Device 004: ID 13d3:3394 IMC Networks Bluetooth

Bus 003 Device 003: ID 046d:c52f Logitech, Inc. Unifying Receiver

Bus 003 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub

rfkill list

0: phy0: Wireless LAN

    Soft blocked: yes

    Hard blocked: no

1: hci0: Bluetooth

    Soft blocked: no

    Hard blocked: no 

when i go to setting and choose bluetooth show "no bluetooth found"
screenshot : http://storage6.static.itmages.com/i/16/0515/h_1463312053_7827113_7a4e2df260.png

dmesg | egrep -i 'blue|firm'

[    0.147244] [Firmware Bug]: ACPI: BIOS _OSI(Linux) query ignored

[    0.816454] [Firmware Bug]: ACPI(PEGP) defines _DOD but not _DOS

[    1.761166] usb 3-7: Product: RT Bluetooth Radio

[    1.776032] psmouse serio1: elantech: assuming hardware version 3 (with firmware version 0x550f00)

[   15.773162] Using firmware rtlwifi/rtl8723fw_B.bin

[   18.901441] Bluetooth: Core ver 2.21

[   18.901451] Bluetooth: HCI device and connection manager initialized

[   18.901454] Bluetooth: HCI socket layer initialized

[   18.901455] Bluetooth: L2CAP socket layer initialized

[   18.901459] Bluetooth: SCO socket layer initialized

[   19.093565] Bluetooth: hci0: rtl: examining hci_ver=06 hci_rev=000b lmp_ver=06 lmp_subver=1200

[   19.093568] Bluetooth: hci0: rtl: loading rtl_bt/rtl8723a_fw.bin

[   40.996583] Bluetooth: BNEP (Ethernet Emulation) ver 1.3

[   40.996585] Bluetooth: BNEP filters: protocol multicast

[   40.996588] Bluetooth: BNEP socket layer initialized

[   41.247665] Bluetooth: RFCOMM TTY layer initialized

[   41.247670] Bluetooth: RFCOMM socket layer initialized

[   41.247673] Bluetooth: RFCOMM ver 1.11

[   42.998956] Bluetooth: hci0 command 0x0c56 tx timeout

[  102.826854] Bluetooth: hci0 urb ffff8800c6322d80 failed to resubmit (113)

[  112.790161] Bluetooth: hci0 urb ffff8800a66bf240 failed to resubmit (113)

when i try search device in blueman software receive this error

Resource Not Ready

Traceback (most recent call last):

  File "/usr/lib/python3/dist-packages/blueman/bluez/errors.py", line 146, in warp

    return func(*args, **kwargs)

  File "/usr/lib/python3/dist-packages/blueman/bluez/Adapter.py", line 135, in start_discovery

    self.get_interface().StartDiscovery()

  File "/usr/lib/python3/dist-packages/dbus/proxies.py", line 145, in __call__

    **keywords)

  File "/usr/lib/python3/dist-packages/dbus/connection.py", line 651, in call_blocking

    message, timeout)

dbus.exceptions.DBusException: org.bluez.Error.NotReady: Resource Not Ready



During handling of the above exception, another exception occurred:



Traceback (most recent call last):

  File "/usr/bin/blueman-manager", line 210, in inquiry

    self.List.DiscoverDevices()

  File "/usr/lib/python3/dist-packages/blueman/gui/DeviceList.py", line 401, in DiscoverDevices

    self.Adapter.start_discovery()

  File "/usr/lib/python3/dist-packages/blueman/bluez/errors.py", line 148, in warp

    raise parse_dbus_error(exception)

blueman.bluez.errors.DBusNotReadyError: Resource Not Ready

when i trye to restart bluetooth service from terminal popup error message with this content

Connection to BlueZ failed

Bluez daemon is not running, blueman-manager cannot continue.

This probably means that there were no Bluetooth adapters detected or Bluetooth daemon was not started.

Here's what worked for me (from cold boot)

sudo hciconfig -a hci0

sudo hciconfig hci0 down

sudo hciconfig hci0 up

sudo hciconfig -a hci0

Looks like xenial and ubuntu bluetooth sucks (at least compared to windows setup for my wife).

I still have bluetooth disconnect from the headphones < 1 meter away from laptop using HP 17 after 30seconds to 2 minutes. No other devices have this problem, but I have changed the m-pci-e card twice now to two different hardware boards both have the same issues.

You could try to reinstall bluetooth:

sudo apt-get purge bluetooth

sudo apt-get install bluetooth

That worked for me.