no audio out on beagleboard-xm

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Hi--

I'm not able to get any audio out the headphone jack on my beagleboard-xm.  I
have a Angstrom build that's on kernel 3.2.  If instead I use a 2.6.32 build the
audio works just fine.

If I go through the /proc and /sys trees it looks like everything is as it
should be.  I also see the output for the twl4030 driver during boot-up.  I also
ran through the alsamixer app and took everything off mute (maybe overkill?).

So, near as I can tell the software is okay (built properly, all modules present
and installed, etc.).  I suspect there may be a lower-level pin/register setting
that is goofed up, but I'm stuck in terms of how to investigate that further.

Any pointers on how I might proceed?

Thanks!
Peter Kurrasch

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