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Date: Tue, 25 Nov 2003 12:12:16 -0800 (PST)
From: Nate Lawson <nate@root.org>
To: Brooks Davis <brooks@one-eyed-alien.net>
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cc: current@freebsd.org
Subject: Re: Intel SE7500WV2 not working with ACPI
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> acpi0: <INTEL  SWV20   > on motherboard
>     ACPI-1287: *** Error: Method execution failed [\\_SB_.PCI0.SBRG.EC0_._REG] (Node 0xc29b4660), AE_NOT_EXIST
> acpi0: Could not initialise SystemIO handler: AE_NOT_EXIST
> device_probe_and_attach: acpi0 attach returned 6

This is the source of the problems.  When acpi0 fails to attach,
everything else is done through the legacy PCI code.  The question is, why
is it failing?  The above-mentioned EC method could indicate the problem
is in walking the namespace but we'll have to look at the ASL to be sure.

Please send a url to the output of:
     acpidump -t -d > brooks-Intel.asl

Also, build with options ACPI_DEBUG and set these in your loader.conf:

debug.acpi.layer="ACPI_ALL_COMPONENTS"
debug.acpi.level="ACPI_LV_OPREGION"

-Nate