https://bugzilla.kernel.org/show_bug.cgi?id=205365
Bug ID: 205365
Summary: acpi thermal zone constantly reports 25 C
Product: ACPI
Version: 2.5
Kernel Version: 5.3.7
Hardware: All
OS: Linux
Tree: Mainline
Status: NEW
Severity: normal
Priority: P1
Component: Power-Thermal
Assignee: acpi_power-ther...@kernel-bugs.osdl.org
Reporter: klaus.kus...@computerix.info
Regression: No
Dell precision mobile 7740 notebook, manually configured kernel.
Thermal zone 0 is the acpi thermal zone.
Reading it (e.g. tmon) constantly shows 25.000 C,
independent of load and real temp,
even if the notebook heats up to the mce throttling temperature.
All other thermal zones work fine and deliver changing, realistic values
(except for the iwlwifi thermal zone, which is a known bug).
>From dmesg:
thermal LNXTHERM:00: registered as thermal_zone0
ACPI: Thermal Zone [THM] (25 C)
Nothing else in dmesg I could relate to thermal zone 0 or acpi thermal.
Is this a bios problem, a linux kernel problem,
or did I configure something wrong?
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