Date: Fri, 28 Jul 2006 11:14:21 -0400 From: John Baldwin <jhb@freebsd.org> To: Spartak Radchenko <spartak@aif.ru> Cc: freebsd-stable@freebsd.org Subject: Re: Monitoring temperature with acpi (sysctls) Message-ID: <200607281114.22512.jhb@freebsd.org> In-Reply-To: <44CA2471.5080406@aif.ru> References: <44C63DFD.5040401@rogers.com> <200607280948.51239.jhb@freebsd.org> <44CA2471.5080406@aif.ru>
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On Friday 28 July 2006 10:51, Spartak Radchenko wrote: > John Baldwin ?????: > > If ACPI doesn't include the sysctl's that's due to your BIOS, not FreeBSD. > > You can verify by doing an acpidump and seeing if you have any thermal > > zones listed in your ASL. > What if there is a thermal zone, but sysctl returns meaningless numbers? > > router# sysctl hw.acpi.thermal > hw.acpi.thermal.min_runtime: 0 > hw.acpi.thermal.polling_rate: 10 > hw.acpi.thermal.tz0.temperature: -257.-1C > hw.acpi.thermal.tz0.active: -1 > hw.acpi.thermal.tz0.passive_cooling: 1 > hw.acpi.thermal.tz0.thermal_flags: 0 > hw.acpi.thermal.tz0._PSV: 50.0C > hw.acpi.thermal.tz0._HOT: -1 > hw.acpi.thermal.tz0._CRT: 60.0C > hw.acpi.thermal.tz0._ACx: 50.0C -1 -1 -1 -1 -1 -1 -1 -1 -1 > > If I understand it correctly, the current temperature is -257C, or 16 > degrees from absolute zero. > Motherboard is Via MS8000. Well, that means your BIOS has a different sort of issue. It probably has a bogus _TMP method. That's still going to be your BIOS' fault. The temperature value is defined in the standard to be in units of .1 K. So a raw value of 160 would give 16.0 K, or the value you are seeing. -- John Baldwin
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