http://www.columbia.edu/~ariel/acpi/acpi_howto.txt
What are cooling modes and how do I change them?
A cooling mode is a description of how your system is cooled in a certain
temperature range. Your cooling mode can be critical, passive, or active.
Active cooling means that a fan or other cooling device can be turned on
when the temperature passes a critical point. Passive cooling means that
devices can be put into a lower power state when the temperature is too hot.
Critical cooling means that when the temperature passes one trip point, the
so-called "hot point", the OS will transition into S4 (suspend to disk) if
possible, and if the temperature passes a second trip point, called the
"critical point", the OS will shut down the system.
If your platform supports it, Linux will set the cooling mode to active by
default. If this isn't successful, but both active and passive modes are
supported, then the cooling mode which supports the lowest trip point is the
one in use. If only one of passive or active cooling modes is supported,
Linux will use that. Failing that, it will fall back to critical cooling
mode, which must be supported by your vendor.
Some platforms allow you to change the cooling mode. You can do this by
echoing 1 to /proc/acpi/thermal_zone/*/cooling_mode to set passive cooling,
or 0 to /proc/acpi/thermal_zone/*/cooling_mode to set active cooling.
Critical cooling will always be active, in case your system heats up so much
that drastic measures must be taken, even with fan use or power reduction.
можешь попробовать, чтобы удостоверится поддерживает ли твой ноут эти режимы.
Для загрузки модуля попробуй modprobe fan из под root.
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