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Date:      Tue, 31 Jul 2007 15:43:15 +0900
From:      Hajimu UMEMOTO <ume@freebsd.org>
To:        Pietro Cerutti <gahr@gahr.ch>
Cc:        acpi@freebsd.org, freebsd-hackers@freebsd.org
Subject:   Re: [patch] enhance powerd(8) to handle max temperature
Message-ID:  <yge3az513b0.wl%ume@mahoroba.org>
In-Reply-To: <46AECE8C.8000500@gahr.ch>
References:  <46AA0491.5000203@gahr.ch> <yge7iol6zb8.wl%ume@mahoroba.org> <46ADAF5B.6050602@gahr.ch> <20070730180355.GA7355@rot26.obsecurity.org> <46AE58B5.3080506@gahr.ch> <yge4pjl1i7f.wl%ume@mahoroba.org> <46AECE8C.8000500@gahr.ch>

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Hi,

>>>>> On Tue, 31 Jul 2007 07:54:20 +0200
>>>>> Pietro Cerutti <gahr@gahr.ch> said:

gahr> Thanks for your help!

I cannot see _TC1, _TC2 nor _TSP in your `acpidump -dt' output.
Further, there is no _PSV definition in anywhere, in the first place.
It seems to me that your ACPI BIOS doesn't support passive cooling at
all.

gahr> hw.acpi.thermal.user_override: 1
gahr> hw.acpi.thermal.tz0._PSV: 80.0C

I suspect that you set hw.acpi.thermal.tz0._PSV manually.  Of cource,
it is insufficient to make passive cooling work with your ACPI BIOS,
and you need the definition of _TC1, _TC2 and _TSP as well.
If you define apropreate definition of them, passive cooling will
work.  But, we don't provide overriding the values of them.  Perhaps,
modifying your ASL (`acpidump -dt' output) to add the definitions of
_TC1, _TC2, _TSP and _PSV, and loading it from loader will make
passive cooling work.

Sincerely,

--
Hajimu UMEMOTO @ Internet Mutual Aid Society Yokohama, Japan
ume@mahoroba.org  ume@{,jp.}FreeBSD.org
http://www.imasy.org/~ume/



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