Re: ACPI Exception (acpi_thermal-0412)

Re: ACPI Exception (acpi_thermal-0412)

[Sergio Monteiro Basto]

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Hi, I think this should be reported on 
ACPI mailing list , so I am Forwarding to this list 

On Thu, 2006-09-14 at 19:47 -0400, Chuck Ebbert wrote:
> I get this message at boot on 2.6.18-rc6:
> 
>  ACPI Exception (acpi_thermal-0412): AE_NOT_FOUND, Invalid active threshold [0] [20060707]
> 
> Followed by:
> 
>  ACPI: Thermal Zone [THRM] (47 C)
> 
> And looking in /proc/acpi/thermal_zone/THRM/cooling_mode, I see:
> 
> <setting not supported>
> cooling mode:   passive
> 
> The fan seems to run at low speed even when CPU temp is stable at 37C,
> and speeds up when it gets warmer, so there seems to be no overheating
> problem (highest temp seen under full load is 60C.)
> 
> Is this normal?
> 
-- 
Sérgio M.B.

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Re: ACPI Exception (acpi_thermal-0412)

[Sylvain Bertrand]

Hi,
Sorry to interfere, but I have the same issue. After code
investigation and ACPI specs reading, it seems that it could be
related to a bug in your ACPI dsdt.
On my laptop, I have only _AC0(hardcoded to rougthly 70°). I miss its
mandatory  sibling _AL0 which generates the message when my temp is
going above the threshold it holds.

Regards,

   Sylvain

2006/9/20, Sergio Monteiro Basto <sergio@sergiomb.no-ip.org>:
> Hi, I think this should be reported on
> ACPI mailing list , so I am Forwarding to this list
>
> On Thu, 2006-09-14 at 19:47 -0400, Chuck Ebbert wrote:
> > I get this message at boot on 2.6.18-rc6:
> >
> >  ACPI Exception (acpi_thermal-0412): AE_NOT_FOUND, Invalid active threshold [0] [20060707]
> >
> > Followed by:
> >
> >  ACPI: Thermal Zone [THRM] (47 C)
> >
> > And looking in /proc/acpi/thermal_zone/THRM/cooling_mode, I see:
> >
> > <setting not supported>
> > cooling mode:   passive
> >
> > The fan seems to run at low speed even when CPU temp is stable at 37C,
> > and speeds up when it gets warmer, so there seems to be no overheating
> > problem (highest temp seen under full load is 60C.)
> >
> > Is this normal?
> >
> --
> Sérgio M.B.
>
>
>
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