DragonFly BSD
DragonFly kernel List (threaded) for 2003-12
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Re: Laptop getting hot

From: Matthew Dillon <dillon@xxxxxxxxxxxxxxxxxxxx>
Date: Mon, 29 Dec 2003 11:07:58 -0800 (PST)

:> > I had neither apm nor acpi enabled and the fan did not turn on 
:> > at all. With DFBSD it start almost immediately, even without any load.
:> > Do you have any idea, what could be causing this?
:> Same thing happens to me with Dell Optiplex G240(a Desktop, though).
:> When it's running FreeBSD-stable, the cooling fan is very calm, while with
:> DragonFly the fan keeps turning noisily as if it's running buildworld.
:> I haven't tried recent acpi code from FreeBSD-CURRENT, but it doesn't seem
:> to have any CPU throttling feature.
:I found that DragonFly box produces less heat when it's playing
:some music with mpg321 from ports.
:I did the following experiment with my Dynabook:
    I'm not sure what's going on... it should be in a halted state most
    of the time (i.e. 'hlt' instruction), unless there is something cpu
    bound running.

					Matthew Dillon 

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