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Date:      Wed, 03 Jan 2001 02:10:51 -0800
From:      Peter Wemm <peter@netplex.com.au>
To:        mobile@freebsd.org
Subject:   ACPICA vs. Sony VAIO etc.. [PATCH]
Message-ID:  <200101031010.f03AApq02503@mobile.wemm.org>

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http://people.freebsd.org/~peter/acpi.diff

Note that this is for -current only.

This fixes a bug in certain writes that can cause an additional read to
the location immediately before.  This happens to be bad for the SMI call
mechanism on the Sony VAIO laptop series (eg: PCG-F690).

With careful BIOS settings, this patch gets me up and running.  Your
mileage may vary, but I'm keen to know what this does (or does not) do for
people who had previously been unable to run acpica in -current.

I still do not know why, but I need to set 'CPU Speed: Full' in the bios
vs. 'Auto'.  Otherwise I get a random hang at a later SMI call.  I have some
theories about what is causing this, but nothing firm yet.

Cheers,
-Peter
--
Peter Wemm - peter@FreeBSD.org; peter@yahoo-inc.com; peter@netplex.com.au
"All of this is for nothing if we don't go to the stars" - JMS/B5



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