http://bugzilla.kernel.org/show_bug.cgi?id=14991
Summary: Fixed (27C) and wrong (hdd) temperatures for CPU
reported for Atom N280 on Acer AOD250 netbook
Product: ACPI
Version: 2.5
Kernel Version: 2.6.32
Platform: All
OS/Version: Linux
Tree: Mainline
Status: NEW
Severity: normal
Priority: P1
Component: Power-Thermal
AssignedTo: [email protected]
ReportedBy: [email protected]
CC: [email protected]
Regression: No
Created an attachment (id=24448)
--> (http://bugzilla.kernel.org/attachment.cgi?id=24448)
ver_linux output
This is an Acer Aspire One D250-1613 (Android+Windows) with Intel Atom N280 cpu
on a Intel 945GME chipset. I don't know about the motherboard.
The problem:
There are two ways to get CPU temperature on this laptop. (1) "acpi -V"
(/sys/class/thermal/thermal_zone0/temp) reports 26.8C fixed; this never
changes. (2) sensors use the coretemp module to report a temperature around
35-45C, however if one checks using hwmonitor in Windows, this temperature
range turns out to be the one for the hard disk.
In sum, there is no way to get a CPU temperature reading on Linux. On Windows,
software like hwmonitor can correctly report CPU temperature, which is around
50-60C usually.
I will attach ver_linux output, sensors output, acpidump, dmesg output that
might be relevant, lsmod, cpuinfo, and lspci -vvv. Thanks in advance.
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