On Wed, 23 May 2007 23:17:05 +0200
Manuel Bouyer <bouyer@antioche.eu.org> wrote:

> On Wed, May 23, 2007 at 08:21:01AM +0100, David Brownlee wrote:
> > 	Given the number of people having problems with ACPI now its
> > 	enabled by default, would there be any sense in having a kernel
> > 	option which disables ACPI on PIII and earlier CPUs? That should
> > 	leave it enabled in all the new machines where its needed, but
> > 	have it off by default on the older machines where it has a
> > 	good chance of causing problems.
> 
> Linux checks the date of the BIOS (or ACPI table, I don't know
> exactly) and if it's too old it doesn't use it. Maybe we could do
> something like that by default.

I think SMBIOS can be used for this (I remember some FreeBSD code ACPI stuff).

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