I wonder why the status had been set to Invalid.

> cleaning out your fans [...] can really, really help avoid the problem
> of getting to the critical temperatures where performance must be
> seriously constrained.

That's not the point.
The point is that, because of this bug, you reach those temperatures even 
though the fan is capable of avoiding that.


If the CPU gets clamped (be it by reducing its frequency or by injecting idle 
processes or a combination of both and of whatever other method) AND the fan is 
not at its maximum speed, then something is wrong.

Proof (in case you don't see the obvious):

If CPU is being clamped, then either the temperature is critically high,
or it isn't. If the temperature were not critically high, then obviously
there would be no reason to clamp the CPU in the first place, so that
would obviosuly be wrong. So let's assume the CPU temperature is indeed
high. Then either the fan can cool it down by spinning faster, or it
can't. If it can, then it should, and then there would be no need to
clamp the CPU. If it can't (spin faster) then it means it must be at its
maximum speed.


This is under the assumption that you want the CPU to be as fast as possible. 
Obviously, this should be the default assumption if not explicitly specified 
otherwise in some system setting that the user can edit (e.g. a "power saving 
mode" where you may prefer longer battery life over best performance, or, if 
this was to be invented, a "silent mode", where you may prefer to keep fan 
noise low even at the expense of performance).

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https://bugs.launchpad.net/bugs/1600599

Title:
  Thermald is totally broken, or its default configuration is

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