[ale] ACPI and laptop fans

[bpitts at learnlink.emory.edu (Brian Pitts)]

Atlanta Linux Enthusiasts wrote:
> Sometimes my HP gets too hot.  Is there an ACPI command I can send to
> tell it to run the fan.  Sometimes the laptop will shut itself off due
> to heat.  I know the fan works because I can hear it and feel it.  I
> just want a way to turn it on myself.
I'm not sure how to manually stop and start the fan. Changing trip point 
values in /proc/acpi/thermal_zone should let you adjust the temperature 
at which the fan automatically activates.

http://acpi.sourceforge.net/documentation/thermal.html
http://www.columbia.edu/~ariel/acpi/acpi_howto.txt (section 8)