On Wed, 2001-10-24 at 09:53, [EMAIL PROTECTED] wrote:
> Clayton Carter [[EMAIL PROTECTED]] wrote:
> >
> > For what it's worth, I've a Dell Inspiron 7000 running 2.2.19
> > and SpeedStep seems to work fine. Well, in so far as when I plug the
> > machine in /proc/whatever says 700MHz and when I unplug the box it's
> > reported as 550. I've always assumed that this meant that it worked,
> > though I've never taken any measures to enable/disable it.
> >
> apparently the problem really only occurs going from a high speed to a low
> speed (or is it the other way round) :) I guess is a kinda "your mileage may
> vary" sort of thing :)
It is the other way around - if the timing loops don't have enough loops
in them, everything unravels!
If you want reliable computing on a speedstep machine you would be
advised to always boot with the mains attached, or failing that: reboot
before attaching to the mains.
I almost always boot with mains attached, and operate in a mix of
battery and powered environments, with the laptop suspended when I go
from one to the other. I regularly manage periods of more than a couple
of weeks between reboots with a 2.4.4 kernel, running unstable.
Regards,
Andrew.
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