[pulseaudio-tickets] [PulseAudio] #819: PA requires manual selection of USB mic as input source when that mic is plugged in

[PulseAudio]

#819: PA requires manual selection of USB mic as input source when that mic is
plugged in
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  Reporter:  jensck  |       Owner:  lennart
      Type:  defect  |      Status:  new    
 Milestone:          |   Component:  daemon 
Resolution:          |    Keywords:         
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Comment(by coling):

 Hmm, right. I suspect that there is a "default" already but it's hidden
 from normal view. All audio outputs (which I presume you have - if not
 you'll have a dummy output anyway and the same logic applies) have a
 corresponding "Monitor Source" this acts just like a Mic for all intent
 purposes but is generally hidden from view in the GUIs.

 What has happened is that this monitor source will have been set as the
 default and when the mic comes along it doesn't change the default, even
 tho' common sense dictates that it should.

 To be honest this just another example of where I think the routing rules
 in PA are lacking and I believe my proposal to implement a more robust
 routing system would solve this problem (short answer is that when a new
 device comes along it gets inserted at the end of a priority list of
 devices. It would make sense that the input priority list would always
 insert new devices not at the end, but below the last non-monitor device.
 If there are no non-monitor devices, then it would go at the top of the
 list and thus take over as "default").

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Ticket URL: <http://pulseaudio.org/ticket/819#comment:1>
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