[pulseaudio-discuss] Bluetooth Headset Problem with BlueZ-5.38 and Pulseaudio 8.0

[Georg Chini]

On 20.08.2016 13:40, Tanu Kaskinen wrote:
> On Fri, 2016-08-19 at 13:57 +0700, Hieu Le wrote:
>> I'm trying to get a SPK-ProHT Bluetooth speaker and headset working on an
>> embedded Linux board but when I failed to use pacmd set-card-profile to
>> choose headset_head_unit profile. Checking pulseaudio lof file, it seems
>> backend-native cannot connect to SCO socket. Sorry this is a very long mail
>> due to debug logs attached
> The problem seems to be that connect() fails with "Protocol not
> supported". This problem has been reported a few times, but I don't
> know how to fix it. It seems like missing functionality in the kernel,
> so my guess is that you're missing some bluetooth related driver. If
> you get it working somehow, please report back how you did it.
>
> The bluez mailing list might be able to help better.
>
Hi,

I remember there was a kernel problem which prevented some
headsets from working. The bug was introduced in 3.12 and was
fixed in 3.18.
See also
https://lists.freedesktop.org/archives/pulseaudio-discuss/2015-March/023298.html

Regards
              Georg