Re: [lm-sensors] Kaveri [and Radeon] temps

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On Wed, Nov 05, 2014 at 04:15:54PM -0500, James Cloos wrote:
> I'm getting odd temp readings on an A8-7600 with 3.3.4 and Linus'
> current kernel.
> 
> Eg, the gpu temp shows up when (mostly) idle as:
> 
>  radeon-pci-0008
>  Adapter: PCI adapter
>  temp1:         -1.0°C  (crit = +120.0°C, hyst = +90.0°C)
> 
The driver for the Radeon chips is maintained by the radeon driver
maintainers, so you might want to ask at dri-devel@xxxxxxxxxxxxxxxxxxxxx
(copied with this reply). The driver supports different chips with
different methods to read the temperature, so it might help to know
which chip is in your system (lspci -nn should tell you).

> aka:
> 
>  radeon-pci-0008
>  Adapter: PCI adapter
>  temp1:        +32.0°F  (crit = +248.0°F, hyst = +194.0°F)
> 
> 
> And the cpu temp is similar:
> 
>  k10temp-pci-00c3
>  Adapter: PCI adapter
>  temp1:         +0.0°C  (high = +70.0°C)
>                         (crit = +80.0°C, hyst = +79.0°C)
> aka:
> 
>  k10temp-pci-00c3
>  Adapter: PCI adapter
>  temp1:        +32.0°F  (high = +158.0°F)
>                         (crit = +176.0°F, hyst = +174.2°F)
> 
AMD CPUs are known report wildly off temperatures especially at
low temperatures. Does the temperature increase with load ?

Thanks,
Guenter
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