Tecra A4 Regression

[Greg Taylor]

Le' sigh. Looks like the ipw2200 + ACPI problem is back on the latest
Dapper on Canonical-Issued Toshiba Tecra A4. mdge and I walked through
debugging and found it was that it checked for a certain BIOS version
(1.60 I think) and disabled ACPI automatically if you had it. I upgraded
to the latest at the time (1.7 something) and got around this. Enabling
ACPI fixed a similar problem to the one I link to below. I do wonder if
the latest kernel kills ACPI on the newer BIOS for the A4.

In any case, it looks like it might be ACPI-related:

https://launchpad.net/bugs/55532

I'm not sure what changed over the last month or so, but yuck. I'll try
this on Edgy soon as well.