Date: Sun, 17 Feb 2008 11:49:49 +0100 From: Johannes Dieterich <dieterich.joh@googlemail.com> To: ume@freebsd.org, freebsd-acpi@freebsd.org Subject: Re: [RFC] Patch to enable temperature ceiling in powerd Message-ID: <47B8114D.1000707@gmail.com> In-Reply-To: <ygeejbckdk4.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>
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Hi, Hajimu UMEMOTO wrote: > Hi, > >>>>>> On Sat, 16 Feb 2008 18:06:12 +0100 >>>>>> Johannes Dieterich <dieterich.joh@googlemail.com> said: > >> dieterich.joh> # hw.acpi.thermal.tz1.passive_cooling=1 >> dieterich.joh> su: hw.acpi.thermal.tz1.passive_cooling=1: command not found >> >> It should be `sysctl hw.acpi.thermal.tz1.passive_cooling=1'. > dieterich.joh> Sorry. Just a typing error. Works now. Should I try to make buildworld? > > No problem. Please make sure hw.acpi.thermal.tz1.passive_cooling is 1 > by typing `sysctl hw.acpi.thermal.tz1.passive_cooling' before trying. > If hw.acpi.thermal.tz1.passive_cooling is 1, passive cooling should be > working. I can confirm that it works, I can get buildworld through. > > You can see if passive cooling is actually working by setting > hw.acpi.verbose to 1 using sysctl. While hw.acpi.verbose is 1, > changing cpufreq by passive cooling is logged into /var/log/messages > like: > > Feb 17 02:26:19 kasuga kernel: acpi_tz0: temperature 86.8C: decreasing clock speed from 1200 MHz to 1000 MHz > Feb 17 02:26:23 kasuga kernel: acpi_tz0: temperature 78.8C: resuming previous clock speed (1200 MHz) > # sysctl hw.acpi.verbose hw.acpi.verbose: 1 but no information is written to /var/log/messages. I've tailed it during buildworld and the only informations written there are from my atheros card. Another question: Ian Smith asked here on the list why the fan levels in acpi_ibm would not have not been implemented yet to 6.x. Since my notebook started overheating when moving to 7, could that be a reason? On my first mail to freebsd-stable I also quoted a case from the LKML where someone with a X60s reported overheating and the problem was in the fan levels of the (linux) acpi_ibm module, if I recall it correct. Regards, Johannes
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