[pulseaudio-discuss] [PATCH] bluetooth: bluez4: For each bluetooth profile use different port names

[Tanu Kaskinen]

On Thu, 2014-09-25 at 13:27 +0200, David Henningsson wrote:
> 
> On 2014-09-25 02:25, Pali Rohár wrote:
> > With this patch it is possible to configure different volume settings for
> > a2dp and hsp profiles. It is usefull for bluetooth headsets which do not have
> > normalized a2dp and hsp volume levels.
> >
> > Module module-device-restore uses port name as identifier, so if different
> > profiles have different names module-device-restore can store volume settings
> > for each profile.
> 
> Hi Pali and thanks for the patch,
> 
> I understand the problem here, but this is the wrong way to fix it.
> 
> First, ports is what unity- and gnome-control-center thinks are most 
> closely to physical devices. If you have two different ports, they will 
> appear like two different devices.
> 
> Second, I believe this problem could potentially exist with other 
> (non-bluez) devices too. Imagine the same "Line Out" that is present in 
> both stereo and 5.1 profiles. If you switch to 5.1 mode, set all your 
> volumes right, and then switch to stereo and change the stereo controls, 
> the other four channels' settings are lost.
> 
> Maybe it's module-device-restore that needs fixing instead, but it would 
> be good to have more people's opinion on that first.

If we use different sink/source names for hsp and a2dp as you suggested
in another mail, I guess that would solve the volume problem? (I don't
know if it would introduce any new problems.)

-- 
Tanu