> there are two models and you need to find out the pin detect of headphone or 
> MicJack 
> is used when headset is pluuged using hda-jack-sense-test

I'm a bit confused here, because while getting hda-jack-sense-test going, the 
headphones suddenly
started working.  I get:

$ hda-jack-sense-test 
Pin 0x15 (Black HP Out): present = Yes
Pin 0x18 (Black Mic): present = Yes

and the headphones are now working.  I don't believe I made any config changes, 
nor do I think I did anything
different.  The only thing it could possibly be is perhaps I somehow plugged 
the headphones in slightly differently
and it got a connection this time.  THe headphones working seems repeatable, 
every time I plug them in now it
is working.

I can hear a slight fuzzy background noise when there's no sound, or the
volume is low, but its definately useable.

Thanks,
Brad

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https://bugs.launchpad.net/bugs/1228970

Title:
  [Dell System XPS L322X, Realtek ALC275, Black Headphone Out, Front]
  Intermittant crackly sound output

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