Date: Wed, 20 Feb 2008 03:32:16 +0900 From: Hajimu UMEMOTO <ume@freebsd.org> To: Johannes Dieterich <dieterich.joh@googlemail.com> Cc: freebsd-acpi@freebsd.org Subject: Re: [RFC] Patch to enable temperature ceiling in powerd Message-ID: <ygeejb8bxvz.wl%ume@mahoroba.org> In-Reply-To: <47BA1288.2070802@gmail.com> References: <20080208045605.15C874500E@ptavv.es.net> <47ABF402.7030904@root.org> <1202475519.7014.7.camel@RabbitsDen> <yge1w7komar.wl%ume@mahoroba.org> <1203126071.833.19.camel@RabbitsDen> <47B6B913.9020505@gmail.com> <ygemyq1jge2.wl%ume@mahoroba.org> <47B6CC48.5070009@gmail.com> <47B6CD54.3020806@gmail.com> <ygeir0okikz.wl%ume@mahoroba.org> <47B71194.8090804@gmail.com> <ygefxvskfcp.wl%ume@mahoroba.org> <47B71804.40002@gmail.com> <ygeejbckdk4.wl%ume@mahoroba.org> <47B8114D.1000707@gmail.com> <ygemypzfrnq.wl%ume@mahoroba.org> <47BA120A.1040005@gmail.com> <47BA1288.2070802@gmail.com>
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Hi,
>>>>> On Tue, 19 Feb 2008 00:19:36 +0100
>>>>> Johannes Dieterich <dieterich.joh@googlemail.com> said:
dieterich.joh> # sysctl hw.acpi.thermal.tz1
dieterich.joh> hw.acpi.thermal.tz1.temperature: 66.0C
dieterich.joh> hw.acpi.thermal.tz1.active: -1
dieterich.joh> hw.acpi.thermal.tz1.passive_cooling: 0
dieterich.joh> hw.acpi.thermal.tz1.thermal_flags: 0
dieterich.joh> hw.acpi.thermal.tz1._PSV: 92.5C
dieterich.joh> hw.acpi.thermal.tz1._HOT: -1
dieterich.joh> hw.acpi.thermal.tz1._CRT: 97.0C
dieterich.joh> hw.acpi.thermal.tz1._ACx: -1 -1 -1 -1 -1 -1 -1 -1 -1 -1
dieterich.joh> hw.acpi.thermal.tz1._TC1: 5
dieterich.joh> hw.acpi.thermal.tz1._TC2: 4
dieterich.joh> hw.acpi.thermal.tz1._TSP: 600
dieterich.joh> is the wanted output without Sunny's patch compiled in.
Thank you. It seems good to me. I've tried following setting on my
laptop, and it's working well:
sysctl hw.acpi.verbose=1
sysctl hw.acpi.thermal.user_override=1
sysctl hw.acpi.thermal.tz0._TC1=5
sysctl hw.acpi.thermal.tz0._TC2=4
sysctl hw.acpi.thermal.tz0._TSP=600
The following was logged into /var/log/messages:
Feb 19 11:08:26 kasuga kernel: acpi_tz0: temperature 85.8C: decreasing clock speed from 1200 MHz to 1000 MHz
Feb 19 11:09:26 kasuga kernel: acpi_tz0: temperature 82.8C: resuming previous clock speed (1200 MHz)
Feb 19 11:10:26 kasuga kernel: acpi_tz0: temperature 86.8C: decreasing clock speed from 1200 MHz to 900 MHz
Feb 19 11:11:26 kasuga kernel: acpi_tz0: temperature 79.8C: resuming previous clock speed (1200 MHz)
So, I think the value of _TC1, _TC2 and _TSP is valid.
Still, I'm not sure why the above message is not logged on your
laptop. But, it would be worth to try increasing _TC2 and/or
decreasing _TSP.
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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