I use powertop on my laptop and seems to do what needs to be done on most.
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On Fri, 26 Mar 2010, steve szmidt wrote:
> On Friday 26 March 2010, Danny trotter wrote:
>
>> processor fan will go in to overdrive and it is a LOUD LOUD noise that will
>> never quit unless I shut down the computer totally and let it sit for about
>> 5min and then start it back up.
>
>> From your limited description I do not get the idea that there is something
> wrong but simply a CPU that is running hot, and a fan that does what it is
> supposed to. How long have you actually run it after it spins up to full
> speed? What were you running on the computer while waiting?
> Can you actually control the fan from Ubuntu? Being a laptop I would expect it
> to be firmware controlled and out of the control of whatever O/S you are
> running.
>
> Laptops often have a need for breathing through the bottom of the case.
> Sitting on a desk raises it up enough, whereas on something like a bed will
> inhibit it from getting full ventilation.
>
> An option is to buy a cooling unit which the laptop sits on and is cooling the
> laptop from the bottom. There are several designs which provides this
> functionality.
>
> You did not include the brand and model of your laptop, I would google using
> the model and loud fan to see if others have the same complaint. It is more
> likely to be a loud design than something wrong.
>
>
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