[Bug 1620636] Re: Fails to pair with Bose QC35 headphones

[Konrad Zapałowicz]

@All

Let me explain a bit how the headset works so that you have the general
understanding and perhaps an explanation to why there are some problems
with how it works with Ubuntu.

This headset supports both the BR/EDR mode also known as Bluetooth Classic
and the Bluetooth Low Energy sometimes referred to as Smart. The important
bit however is the fact that on the Low Energy side it does not support
pairing. The pairing is expected to happen on the BR/EDR.

As far as I remember the bluez prioritizes the LE mode over BR/EDR and
initiates pairing on this channel that for the reasons stated above fails.

BlueZ 5.42 contains improvements for transport selection (BR/EDR vs LE). This
is not yet a full support offering seamless experience however things might
look better using it.

For you to know we currently package:

- xenial  with bluez 5.37
- yakkety with bluez 5.41
- zesty   with bluez 5.41

With the ongoing work to have zesty being packaged with the latest upstream
bluez which is atm 5.43. Also we plan to update xenial with bluez 5.43
however this is nothing certain yet as we need to make sure that the update
will play nice with the LTS release and not break anything.

Hope this helps

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https://bugs.launchpad.net/bugs/1620636

Title:
  Fails to pair with Bose QC35 headphones

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