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Date:      Tue, 17 Jun 2003 18:40:26 -0400
From:      Barney Wolff <barney@databus.com>
To:        "M. Warner Losh" <imp@bsdimp.com>
Cc:        dnelson@allantgroup.com
Subject:   Re: ACPI testing/debugging guide?
Message-ID:  <20030617224026.GA71721@pit.databus.com>
In-Reply-To: <20030617.162959.27781208.imp@bsdimp.com>
References:  <20030617180552.GA4769@laptop.lambertfam.org> <20030617181649.GM64929@dan.emsphone.com> <20030617.162959.27781208.imp@bsdimp.com>

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On Tue, Jun 17, 2003 at 04:29:59PM -0600, M. Warner Losh wrote:
> : 
> : ACPI records temperature in tenths of a Kelvin, if you can believe it :)
> 
> I don't believe that. 369.2K is 96.2C, which is over 200F.  That seems
> to hot to me.  My laptop says 2982, which is either about 30C or
> 15.2C.  Given how warm it is on my leg at the moment, I'd guess it is
> centi-Celcius.  Maybe converted internally?

Reading the source, it really is tenths Kelvin.  Is the 3692 the actual
temp, or the CRT, which I assume is the critical temp?  In the output
of sysctl hw.acpi.thermal.tz0 there are a bunch of values, only one of
which is the current temp.  The rest are thresholds - AC appears to mean
active cooling (aka fan), PSV seems to mean passive.

<whine>How come xmbmon can't interpret acpi temps?</whine>

-- 
Barney Wolff         http://www.databus.com/bwresume.pdf
I'm available by contract or FT, in the NYC metro area or via the 'Net.



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