Hi!

Yes it pairs and in the non-headset profile (a2dp_sink: High Fidelity 
Playback (A2DP Sink) (priority 40, available: unknown)) I can even here 
music, but I can't switch to the headset profile (headset_head_unit: 
Headset Head Unit (HSP/HFP) (priority 30, available: no)) and in the 
a2dp sink profile no input is shown for the headset (I guess that's 
expected)?

Both logs are attached. These are the logs for one connect, the 
attempted profile change with pacmd did not emit any further logs.

Thanks,
Marius

On 22.01.21 20:25, Luiz Augusto von Dentz wrote:
> Hi Marius,
> 
> On Fri, Jan 22, 2021 at 5:54 AM Marius Melzer
> <marius.melzer@kernkonzept.com> wrote:
>>
>> Hi,
>>
>> I bought some Klipsch T5 II bluetooth headphones but the headset mode is
>> unfortunately not working.
>>
>> All details in my (unfortunately unanswered) stackoverflow question:
>> https://unix.stackexchange.com/questions/629197/use-klipsch-t5-ii-as-bluetooth-headset-under-linux
>>
>> I tried this with Fedora 32 & 33 and an up-to-date arch linux. Both
>> Fedora 33 and arch linux had Linux 5.10 and bluez 5.55.
>>
>> Any ideas what is causing the problem? In which part of the bluetooth
>> stack (kernel, bluez, ...) is this most likely situated and is this a
>> bug or a missing feature of a driver or simply a configuration issue?
>>
>> I'm happy to provide any further information needed (config files, log
>> output etc., just name it).
> 
> Lets see what we have on HCI logs (btmon) and bluetoothd logs when
> connecting to it, does it at least pair?
> 

-- 
Marius Melzer, marius.melzer@kernkonzept.com

Kernkonzept GmbH, Dresden, Germany, HRB 31129, CEO Dr.-Ing. Michael Hohmuth