[lm-sensors] Kaveri [and Radeon] temps

[Guenter Roeck]

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 at lists.freedesktop.org
(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