Re: The mystery of lm-sensors

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Timothy Murphy wrote:

Does anyone understand the output of "sensors"
under the lm-sensors program?

If you read the docs for lm_sensors you can see that the interpretation it does on the raw reading from the temperature sensor is grossly different depending on the type on sensor, the motherboard, phase of moon and so on, and there is nothing to check you have the correct sensor approximation or to calibrate it.

It's better to see if you can get the temperature from /proc/acpi, where the BIOS on the motherboard (AIUI) has done the conversion to centigrade. At least the BIOS has a better chance to match what sensor is on the motherboard.

On this laptop for example

$ cat /proc/acpi/thermal_zone/TZ00/temperature
temperature:             52 C

The TZ00 or whatever will depend on your BIOS, in fact the whole thermal_zone stuff might be absent (as might /proc/acpi if you turned it off).

-Andy


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