[lm-sensors] sensors show hdd temp instead of cpu temp using coretemp in acer d250

[Huaxu Wan]

On 19:51 Mon 04 Jan, vajorie wrote:
> Hi,
> 
> I guess this could be a follow up from my previous email trying to get
> lm-sensors working in this laptop. Since kernel 2.6.32, coretemp seems
> to support atom cpus, as I found out, but the temperature reported as
> cpu temperature (I guess?) is hdd temperature, not cpu temperature.
> 
> The bug report in kernel.org indicated that I should report it here.
> Here is that bug report:
> http://bugzilla.kernel.org/show_bug.cgi?id=11161
> 
> Here's some info that I hope is useful:
> 
> Motherboard: I don't know (an Acer netbook using Atom N280 cpu)
> 
> lm-sensors v. 3.1.1
> 
> kernel 2.6.32 (arch linux)
> 
> sensors output:
> 
> coretemp-isa-0000
> Adapter: ISA adapter
> Core 0:      +45.0°C  (crit = +90.0°C)
> 
> coretemp-isa-0001
> Adapter: ISA adapter
> Core 1:      +45.0°C  (crit = +90.0°C)
> 
> acpitz-virtual-0
> Adapter: Virtual device
> temp1:       +26.8°C  (crit = +100.0°C)
> 

You can get the hdd temperature through hddtemp[1]. 

Coretemp get CPU temperature data from MSR directly. The data in
MSR is reported by the on-die DTS (Digital Temperature Sensor), it
reflects the delta between the current temperature and the maximum
junction temperature of the die(Tj).


[1] http://savannah.nongnu.org/projects/hddtemp/

Thanks
Huaxu