ACPI testing/debugging guide?

[Scott Lambert]

On Tue, Jun 17, 2003 at 06:40:26PM -0400, Barney Wolff wrote:
> 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.

I was shocked at the dK values.  However, combined with the fact that
this thing is often too hot to touch with bare skin, I am temped to
believe in dK.  It is definately too hot.  Hence, my desire for the
ability to keep the fan on all the time.  :-)

Last night it was:
hw.acpi.thermal.tz0.temperature: 3352 (62.05C 143.69F)

Current values:
hw.acpi.thermal.min_runtime: 0
hw.acpi.thermal.polling_rate: 30
hw.acpi.thermal.tz0.temperature: 3302  (57.05C 134.69F)
hw.acpi.thermal.tz0.active: -1
hw.acpi.thermal.tz0.thermal_flags: 0
hw.acpi.thermal.tz0._PSV: 3692
hw.acpi.thermal.tz0._HOT: -1
hw.acpi.thermal.tz0._CRT: 3702
hw.acpi.thermal.tz0._ACx: 3692 3692 -1 -1 -1 -1 -1 -1 -1 -1


-- 
Scott Lambert                    KC5MLE                       Unix SysAdmin
lambert at lambertfam.org