On 09/08/2013 11:36 AM, Tomas Larsson wrote:
-----Original Message-----
From: Guenter Roeck [mailto:linux@xxxxxxxxxxxx]
Sent: Sunday, September 08, 2013 7:47 PM
To: Tomas Larsson
Cc: lm-sensors@xxxxxxxxxxxxxx
Subject: Re: Whats wrong with LM-Sensors
On 09/08/2013 10:15 AM, Tomas Larsson wrote:
Ok, that explains things, so how to get it working, are there any
aspi-drivers available?
Please don't top-post.
I don't think there is an acpi driver available; most of the time there
isn't.
Also, looks like the acpi thermal module isn't loaded, meaning acpi may
not
export the necessary thermal information at all.
acpi drivers are highly board and vendor specific, which means that
typically
no one really bothers to write a driver for it, including board vendors.
Besides, most of the time much of the available information from the chips
is
not exported to the user through acpi, so even if you had an acpi driver
you
would likely end up with limited or even no information.
Only option I could see (besides enabling the relax option) would be to
disassemble the DSDT, check what is available, and if there is anything
write a
driver yourself to access it.
By disassembling the DSDT you would also see what kind of risk you could
run
into by disabling the region conflict checks.
Guenter
Ok, sorry about the posting style.
Now which version should I trust, regarding temperatures.
I don't think the 3.1.1 version is showing correct values, guessing some 20
degrees to low or so.
The 2.10.7 version is only showing "CPU-Temperature" not for the cores them
selves.
Different driver. Centos 6.4 uses the coretemp driver which gets the temperature
from the CPU directly. Unfortunately, Centos 6.4 is quite old when it comes to
kernel version, and so is its coretemp driver. The displayed temperatures in your version
are all wrong; the maximum temperature for Atom 330 is 125 degrees C, not 90 degrees C.
You'll have to add 35 degrees C to the displayed temperature.
You could either update the coretemp driver to a later version to fix this,
or add the offset to /etc/sensors3.conf.
Note that CPU temperatures are notoriously unreliable.
Guenter
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