No sound, not sure what device is being used

[Kevin O'Gorman]

Running xubuntu 14.04, sometime recently the sound quit on me.  Having run
into something like this on my Win-8 laptop, I'm aware of several
possibilities.   In that case, it turned out to be the system's preference
to send sound to the HDMI external port.  But the monitor I had plugged in
there had a broken sound system.  I fixed it by changing preferences.

On the xubuntu system, I do not know how to control that.  Because I've
been trying various things, right now there's sound on the mobo, an add-in
sound card, and one HDMI monitor (it's new, so I do not suspect breakage
there).

For starters, I'd appreciate help figuring out what the system thinks it's
using.  I have no clue how to do that.  If I could, then I could try
changing it to see if one of the sound devices works, or debug them, or
replace them, or whatever.

-- 
Kevin O'Gorman
#define QUESTION ((bb) || (!bb))   /* Shakespeare */

Please consider the environment before printing this email.
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