Comment 127 for bug 370173

Well, while the fans are certainly the core mechanism of keeping a
laptop cool nowadays, the OS/firmware/hardware have other mechanisms
too.

So while I concur that a laptop that shutdowns itself with the fans
running suggests a hardware problem, it does not have to be so.

The central question is, why does it run on Windows? Hard to answer
because Windows is SO different, but there are more than enough reports
where other Linux distributions or even different kernels (as in my
case) have kept the hardware going.

In my experience btw, there are hardware setups that have rather badly
configured trippoints, and another thing is that although my laptop
claims to have a critical trippoint at 100°C I have never seen the
temperature approach it, it always reboots below 90°C => that behavior
I've noticed with different systems, so I guess it's meant to be so.

Other things to consider, because modern systems seem to be rather
choosy sometimes:

-) are you running it on a hard desk? I know laptops that overheat even
from a simple tablecloth beneath them.
-) are the fans clear? Depending upon the environment fans can get
really really fast clogged.

Andreas

Am Donnerstag, den 18.06.2009, 14:03 +0000 schrieb arsenix:
> Charley -
>
> I'm sticking by my rec that you need to get the hardware fixed. Maybe
> windows throttles the machine more agressively when it gets hot instead
> of shutting down... maybe windows has better GPU thermal control (this
> is almost certainly true)... in any case your machine should not be
> shutting down with the fans at max under any loading situation. Lots of
> other users have T60's and no thermal shutdown issues in Jaunty. My
> machine (T61p) has the same fan control and power management system as
> yours... and has no issues. The thermal issues that originally led me
> to this thread were hardware issue related.
>
> I'm not saying there isn't some power management bug that makes your
> machine runs hotter under only Jaunty... I'm just saying you have a
> hardware problem if your machine gets itself hot enough to shutdown.
>
>
> James
>