Bug#660111: multiple, non-physically accesible, HDMI devices (Re: pulseaudio: pa can't handle multiple HDMI devices)
> You're correct; even if the information is there, it isn't advertised in
> pavucontrol. I should probably implement that...
> (If you're using Ubuntu 12.04, you will have a new sound settings UI that
> hides unavailable devices. For upstreaming of this UI please see the
> gnome-cc list.)
>
> What you'll get is instead what the module-switch-on-port-available module
> provides. When you plug your headphones in, the selected port will switch
> (you should be able to notice this in pavucontrol I think), which means your
> media keys / sound indicator / etc would control your headphone's volume
> instead of your speaker's volume.
>
> For the multi HDMI case - if you have selected the wrong HDMI interface, and
> then activate your HDMI screen, module-switch-on-port-available should
> automatically switch to the correct one.
>
> This is all assuming you're running PulseAudio 2.0 - earlier versions of
> PulseAudio do not have this functionality.
>
> Should you be interested in backporting the jack detection kernel patches,
> I'll be happy to point you to the Ubuntu kernel's git tree, where I did the
> same thing.
Has this been backported? Personally I think this bug should closed
whether it's been backported or not. The gain in backporting jack
detection is minimal because the GUI's haven't completely caught up
with this feature yet as David mentioned and the user still needs to
pick from one of the multiple HDMI ports advertised by the kernel.
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