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Re: Powerbook produces a lot more heat after kernel upgrade

Could is be something related to hard-drive activity? Or is the
processor just doing more work? did the powernowd change?

I used to just keep my laptop running during the night having it right
besides my bed. downloading stuff... Never was a problem. But now it
keeps activating the fan wich is unusually noisy and wont let me
sleep. :/ - So I guess it must be more then just a feeling. ;)


Timo Reimerdes

On Mon, 2004-11-29 at 14:09 +0100, Richard Hult wrote:
> Colin Leroy wrote:
> > On 26 Nov 2004 at 12h11, Timo Reimerdes wrote:
> > 
> > Hi, 
> > 
> > 
> >>Hm... I havent researched it but I said to a friend of mine about 15
> >>minutes ago "somehow the temperature management seems to get worse". *g*
> >>In other words - I had the same feeling. (Running Ubuntu now -
> >>preparing to test the sleep patch)
> > 
> > 
> > The fan driver never changed the way it works between its inclusion (around
> > 2.6.2 iirc) and 2.6.10-rc2, so it's not temperature management related.
> > 
> > Since 2.6.10-rc2 however, it now works by incrementing fan speed step 
> > by step according to the temperature. Try it, maybe works better. 
> Note that the problem is most likely not related to the fan driver. The 
> temperature is simply more or less constantly 3-4 degrees higher than 
> before. If the temperature limit for the fan is raised, it can easily be 
> seen than the fan doesn't affect this.
> Using cpufreqd or any of the alternatives helps a bit, but only when 
> idling obviously.
> FWIW, I've tried the new fan driver and it works nicely, although it 
> doesn't really affect the temperature that much.
> /Richard
> -- 
> Imendio AB, http://www.imendio.com/

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