[pulseaudio-discuss] [V4 PATCH] module-switch-on-connect: add an argument for conditionally connecting

[Tanu Kaskinen]

On Mon, 2014-09-22 at 11:50 +0800, Hui Wang wrote:
> On a machine without fixed connecting audio devices like internal
> microphone or internal speaker, and when there is no external audio
> devices plugging in, the default source/sink is alsa_input/alsa_output
> and there is no input devices/output devices listed in the gnome
> sound-setting.

How can the default source/sink be alsa_input/alsa_output if there are
no alsa devices?

> Under this situation, if we connect a bluetooth headset, the gnome
> sound-setting will list bluez input/output devices, but they are not
> active devices by default. This looks very weird that sound-setting
> lists only one input device and one output device, but they are not
> active. To change this situation, we add an argument, the policy is
> if a new source/sink is connected and current default source/sink's
> active_port is AVAILABLE_NO, we let the new added one switch to
> default one.

Surely it doesn't make any sense to have the default sink/source point
to non-existing devices if there are other devices available. To me this
seems like something to fix in the core than working around in modules.

I happen to have some code that improves the core default device
tracking. I can submit a patch next week. It might fix your issue too.

-- 
Tanu