Arch Linux

gen2arch

Member

Registered: 2013-05-16

Posts: 182

a2dp sink headset and speaker

Hi,

I have a bluetooth headset Sennheiser Momentum 2 and a bluetooth speaker Bose Mini II Soundlink.

I want to use both of them with the "a2dp" sink.

If the headset is connected to my BT adapter via a2dp, it is impossible to even connect  the speaker: I get this error "bluetoothd[727]: Unable to select SEP".

If the speaker is connected though, the headset only connects via HSP/HFP, with horrible audio quality: this makes a $500 headset sound like a $5 one.

My question is:

What is the standard procedure to switch between BT output devices under KDE so that both of them can use high quality output?

Thanks

Last edited by gen2arch (2017-08-27 23:08:08)

V1del

Forum Moderator

Registered: 2012-10-16

Posts: 21,728

Re: a2dp sink headset and speaker

Do both of them individually support A2DP ? There's likely a hardware issue that your bluetooth adapter isn't strong enough to drive the A2DP protocol for two devices at the same time.

gen2arch

Member

Registered: 2013-05-16

Posts: 182

Re: a2dp sink headset and speaker

Do both of them individually support A2DP ? There's likely a hardware issue that your bluetooth adapter isn't strong enough to drive the A2DP protocol for two devices at the same time.

Yes indeed: both of them work individually via a2dp!  But as soon as one is connected, its game over for the second:mutually exclusive.

The BT adapter is in my P50 thinkpad: how can I check its capabilities?

And what is the standard way to switch between BT outputs??

Only way working now: completely disconnecting one device, then pairing/connecting the other.

Thanks