hp omnibook xe4500 fan control

[Thomas Perl <thp-MhksZLCqGG5eoWH0uzbU5w@public.gmane.org>]

Hello, List!

I'm having a problem with HP's Omnibook XE4500.

I cannot control the fan using its /proc/acpi interface. There is a fan 
entry and I can try to set some options, however - they are not set 
effectively (seems like Linux isn't in control of the fan). I'd like to 
set the trip_points to some values so that the fan doesn't come on so 
often. Any hints on where to start? Or it is not possible on Linux anyway?

There is a fan.exe on the diagnostic partition which switches the fan on 
and then off for diagnose purposes, so it _should_ be possible to 
control the fan by software.


Thanks for any information!
Thomas

PS: Please cc the reply also to me, I'm currently not on the list.


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