Robert:  Thanks for the summary.  I'm going to prepare a little table
for the studio audience to try to make things clearer, especially since
you correctly pointed out in comment #27 that there's ambiguity over
whether I'm talking about bell.ogg or the squarewave beep coming out of
line-out (whoops).  I can probably get to that within the next 24 hours;
if not, it'll happen maybe Sunday sometime.  The idea is to summarize
the motherboard & line-out behavior with and without the rmmod/modprobe
fandango in an X-less console, in bare X (xinit), and in gnome/metacity.
(I'm not going to try compiz unless someone thinks it's necessary; if I
did that, I'd do it from a LiveCD to avoid potentially side-effecting my
current Karmic install.)

Re the rmmod/modprobe fandango:  I'm not the only person who needs to do
this.  In fact, it would never have occurred to me that it would even
change the behavior if I hadn't seen it mentioned in bug #398161 (see
comments #1 and #2 in this thread, where Philip asked if I'd tried that
workaround).  So it's clearly not just me.  However, I hadn't realized
you were testing on a laptop.  I think that to really disentangle
things, testers need to try this on a desktop, where you can tell
absolutely where the sound is coming from, given that laptops seem to
route what I'd call line-out directly to their onboard speaker unless
you've got something plugged into the line-out connector---that muddies
the water.  On a desktop, my motherboard speaker is independent of
whether I've got anything cabled into line-out, so I can differentiate
conditions that I think you can't.

On a larger note, this might be a problem with Ubuntu in general on this
issue---if most of the developers working on these subsystems do their
work on laptops, they may not see the issue!  Or at least, not all of
it.

More tomorrow.

-- 
System beep broken in Karmic despite heroic efforts to fix it
https://bugs.launchpad.net/bugs/486154
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