Date: Wed, 20 Feb 2008 20:46:31 +0100 From: Johannes Dieterich <dieterich.joh@googlemail.com> To: Hajimu UMEMOTO <ume@freebsd.org>, freebsd-acpi@freebsd.org Subject: Re: [RFC] Patch to enable temperature ceiling in powerd Message-ID: <47BC8397.4040207@gmail.com> In-Reply-To: <ygeejb8bxvz.wl%ume@mahoroba.org> 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> <ygeejb8bxvz.wl%ume@mahoroba.org>
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Hi, Hajimu UMEMOTO wrote: > 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 > and now I start to wonder: that is what happens: # sysctl hw.acpi.verbose=1 hw.acpi.verbose: 0 -> 1 # sysctl hw.acpi.thermal.user_override=1 hw.acpi.thermal.user_override: 0 -> 1 # sysctl hw.acpi.thermal.tz0._TC1=5 hw.acpi.thermal.tz0._TC1: -1 -> 5 # sysctl hw.acpi.thermal.tz0._TC2=4 hw.acpi.thermal.tz0._TC2: -1 -> 4 # sysctl hw.acpi.thermal.tz0._TSP=600 hw.acpi.thermal.tz0._TSP: -1 -> 600 Shouldn't that be somewhat different? And I didn't change anything in between but rebooting the machine. > 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) > still nothing. Completely nothing. > 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. That might be my next test then. Just wanted to let you know about the IMHO strange output above. Regards, Johannes
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