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Date: Tue, 19 Apr 2011 23:48:15 +0900
From: Taku YAMAMOTO <taku@tackymt.homeip.net>
To: Nick Ulen <uncle@wolfman.devio.us>
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Cc: mdf@FreeBSD.org, freebsd-current@freebsd.org
Subject: Re: `hw.acpi.thermal.tz0.temperature' disappeared
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> This patch works.
> 
> FreeBSD 9.0-CURRENT #1: Tue Apr 19 10:52:58 MSD 2011
> 
> # sysctl hw.acpi.thermal
> hw.acpi.thermal.min_runtime: 0
> hw.acpi.thermal.polling_rate: 10
> hw.acpi.thermal.user_override: 0
> hw.acpi.thermal.tz0.temperature: 67.5C
> hw.acpi.thermal.tz0.active: -1
> hw.acpi.thermal.tz0.passive_cooling: 0
> hw.acpi.thermal.tz0.thermal_flags: 0
> hw.acpi.thermal.tz0._PSV: -1
> hw.acpi.thermal.tz0._HOT: -1
> hw.acpi.thermal.tz0._CRT: 90.0C
> hw.acpi.thermal.tz0._ACx: -1
> hw.acpi.thermal.tz0._TC1: -1
> hw.acpi.thermal.tz0._TC2: -1
> hw.acpi.thermal.tz0._TSP: -1

We should have 10 _ACx values like this:
hw.acpi.thermal.tz0._ACx: -1 -1 -1 -1 -1 -1 -1 -1 -1 -1

I haven't seen meaningful values these days, though.
IMHO the BIOS writers don't rely on OSes being stable enough not to
toast the core ;)

-- 
-|-__   YAMAMOTO, Taku
 | __ <     <taku@tackymt.homeip.net>

      - A chicken is an egg's way of producing more eggs. -