[tlinux-users:08277] Fixed - Satellite P100 Audio

For those who have had no luck in getting the audio working on the
P100 line of notebooks, it appears that the necessary components are
finally coming together. The two problems in getting the audio up and
running are support for the Conexant codec used to implement the Intel
HDA functionality and ACPI conflicts created by what is likely a
bugged DSDT (resulting in the inability to use other parts of ACPI for
monitoring battery levels/temps/hardware events/etc if one wishes to
use the sound).

The snd-hda-intel driver included in the alsa-driver 1.0.14-rc1 and
above now supports the Conexant codec. I would estimate that in-kernel
support will appear in the vanilla kernel with the 2.6.20 release
(2.6.19 and below do not include support).

A Gentoo user has sussed out the required DSDT modifications and
posted them on the Gentoo forums at
http://forums.gentoo.org/viewtopic-p-3774561.html#3774561. If you
don't know how to modify the DSDT there is a reasonable guide located
at http://www.gentoo-wiki.com/HOWTO_Fix_Common_ACPI_Problems

I have tested the DSDT modifications described with a PSPA6A-01J017
running the v2.40 BIOS, a 2.6.19 kernel and alsa-driver 1.0.14-rc1 and
they appear to work with no ill side effects, will see how it holds up
over the Christmas period. Toshiba might like to take note of these
modifications and provide an official fix for this issue in a future
BIOS update.