[alsa-devel] snd_had_intel turning off internal speakers by going to power state D3

[Jeff Robins]

Hello,

I have a Toshiba Satellite C655D with Mageia 2 and I have a problem
where the internal speakers eventually stop producing sound, but the
headphones still work.  After doing a bit of research and running
alsa-info (attached) I figured out that one of the parts of the sound
card
had gone into a D3 power state.

Removing and then reloading the snd_hda_intel module fixed the
problem, but then the sound would turn off again.  I was able to find
a post
in alsa-users where someone else came up with a better solution using
hda-verb to reset the power state:
http://www.mail-archive.com/alsa-user@lists.sourceforge.net/msg28769.html

I also found a thread in the gentoo forums where other people are
having the same problem.  One of them has kernel 3.5.0:
http://forums.gentoo.org/viewtopic-t-932038.html?sid=2bee6543c63f2342057c71bc876e7273

I'm open to compiling my own alsa and helping out in any way I can.
Please let me know what I can do.

Mageia bug report for completeness:
https://bugs.mageia.org/show_bug.cgi?id=7292

Thank you,

Jeff
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