On Wed, Jun 10, 2009 at 11:53:39AM +0200, Jan Stary wrote:
> Scenario: 4.5 on MSI Wind PC, everything works. I use this machine
> because it is relatively low-power and quiet.
>
> The fan rotation changes with how much the CPU is used
> (could someone translate this into the real thing please?),
> without me doing anything about it on the OS level.
>
> Unless I run something heavy, such as launching mozilla, the fan keeps
> pretty quiet (below the level of noise that would annoy me), but still,
> it could be quiter. Is there a way to control the fan RPM from the OS?
> (Unsurprisingly, hw.sensors.adt0.fan0 is readonly.)
This is not an answer to your query, but are you sure that turning off
the cooling for the CPU is a good idea? It does turn on for a reason...
You may want to investigate hw.setperf, which may be used to put the CPU
in a low-power (and -performance) state. Try sysctl hw.setperf=0 (the
lowest possible state).
Joachim
