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Date: Mon, 4 Jul 2005 15:02:01 +0200
To: mgedv online <online@mgedv.net>
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From: Bruno Ducrot <ducrot@poupinou.org>
Cc: freebsd-acpi@freebsd.org
Subject: Re: hp proliant acpi
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On Fri, Jul 01, 2005 at 07:09:12PM +0200, mgedv online wrote:
> 
> hi guys,
> 
> reading the sysctl-tz0 values for my DL320 i get strange values like
> "hw.acpi.thermal.tz0.temperature: 8.3C".
> 
> machine is a HP Proliant DL320 G2, latest BIOS loaded.
> current room-temp. is ~25°C.
> 
> if i try "sysctl -b hw.acpi.thermal.tz0.temperature | od -X" i get
> the result "0xAFF" (dec. 2.815K). this matches the strange 8.3°C.

...
...
> # acpidump -d -t -v
...
>     Scope (\_TZ)
>     {
>         Name (\TEMP, 0x0AFF)
>         ThermalZone (THM0)
>         {
>             Name (_TSP, 0x3C)
>             Name (_TC1, 0x04)
>             Name (_TC2, 0x04)
>             Name (_PSL, Package (0x01)
>             {
>                 \_PR.CPU0
>             })
>             Method (_PSV, 0, NotSerialized)
>             {
>                 Store ("_PSV Method", Debug)
>                 Return (0x0B0E)
>             }
> 
>             Method (_SCP, 1, NotSerialized)
>             {
>                 Notify (\_TZ.THM0, 0x81)
>             }
> 
>             Method (_TMP, 0, NotSerialized)
>             {
>                 Store ("_TMP Method", Debug)
>                 Return (\TEMP)

As you can see, this Method (_TMP()) always return the value given by
\TEMP, but \TEMP is updated nowhere (grepping \TEMP throughout that
dump reveal there isn't any other reference).
Therefore, the value returned by this method give always 0xaff.

Unfortunately, we can't help you there.  Maybe you may want to check
if by chance any other methods will work (IPMI)?

Cheers,

-- 
Bruno Ducrot

--  Which is worse:  ignorance or apathy?
--  Don't know.  Don't care.