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I installed Ubuntu Server 18.04 on my ASUS Chromebox2. When issuing the command cat /sys/class/thermal/thermal_zone*/temp it returns the following:

43000
96500
42000

The numbers shown, indicate the temperature in millidegrees Celsius (m°C). So 96.5°C celsius is way to high. Since this is a newly bought Chromebox, is it possible that I misinterpreted the numbers or do I need to replace the hardware right after buying it?

EDIT: Running lm-senors after some time of letting the Chromebox run, reports the following:

$ sudo sensors
coretemp-isa-0000
Adapter: ISA adapter
Package id 0:  +45.0°C  (high = +105.0°C, crit = +105.0°C)
Core 0:        +45.0°C  (high = +105.0°C, crit = +105.0°C)
Core 1:        +44.0°C  (high = +105.0°C, crit = +105.0°C)

acpitz-virtual-0
Adapter: Virtual device
temp1:        +45.0°C  (crit = +104.0°C)

pch_wildcat_point-virtual-0
Adapter: Virtual device
temp1:        +99.0°C
JJ Abrams
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    All temperatures look OK. That pch_wildcat_point-virtual-0 is some wrong output misinterpreted by lm-sensors. – Pilot6 Aug 28 '19 at 18:54
  • Oh, thanks for your answer :) But in the end, lm-sensors is just interpreting the values it found in /sys/class/thermal/thermal_zone*/temp, right? Does this mean, that specific value is just off and I can ignore it? I hope so :) – JJ Abrams Aug 28 '19 at 19:02
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    That's correct. Some erroneous number. – Pilot6 Aug 28 '19 at 19:03
  • If you could put that in an answer, I would accept it ;) – JJ Abrams Aug 28 '19 at 19:05

1 Answers1

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It looks like that 96500 is a wrong number in /sys/class/thermal/.

This happens when a platform driver is not 100% compatible. It reads some register that is not showing real temperature on this device.

So just ignore this value. Everything else looks good.

Pilot6
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