Date: Mon, 20 Feb 2006 09:51:43 +1100 From: "Dave Symonds" <dsymonds@gmail.com> To: "Ryan R" <air.lightz@gmail.com> Cc: freebsd-stable@freebsd.org Subject: Re: Need serious help with Dell D600 Latitude laptop and Power Management please :) Message-ID: <ee77f5c20602191451m3ccc8cb5obdd39ad1aed09764@mail.gmail.com> In-Reply-To: <1b62a7390602191434t51cd6bc6off4a46cf8175b664@mail.gmail.com> References: <1b62a7390602191434t51cd6bc6off4a46cf8175b664@mail.gmail.com>
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On 2/20/06, Ryan R <air.lightz@gmail.com> wrote:
> I am running a Dell D600 Latitude laptop (2.0ghz Pentium Mobile) and
> dual-boot Windows. In Windows, I get about 3 hours and 30 minutes roughl=
y
> of battery time when I am not plugged into the AC Power, but in FreeBSD I
> get around only 1. In Windows, my fans don't generally run until the sys=
tem
> is doing something full load, and runs very cool. Here in FreeBSD, my fa=
ns
> are running FULL SPEED all of the time and also seems to be hotter than m=
any
> conventional ovens. It is definitely way hotter than it is in Windows, =
and
> definitely isn't relaxing when the system isn't doing anything stressful.=
I
> am a novice user and don't know where to start in solving this problem..
> How come it isn't working automatically :( Are there going to be alot of
> manual commands I have to enter just to get it to calm down?
I'm running -STABLE on a Latitute D800, so I can sympathise. It took a
fair bit of reading and poking around, but I found this to be a good
start:
* Add these lines to your /etc/rc.conf file: (options are detailed
in powerd(8))
powerd_enable=3D"YES"
powerd_flags=3D"-a adaptive -b adaptive -p 2000"
That will probably get you a long way there just by allowing the CPU
to slow down during inactive periods. Don't ask me about getting the
darn thing to suspend, though. Every time I've tried it has failed to
come out correctly. And keep in mind that there is no suspend-to-disk
support (called "Hibernation" in Windows) for FreeBSD.
Dave.
--
"Strange women lying in ponds distributing swords
is no basis for a system of government."
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