Re: [opensuse] Laptop power conservation

Great site, many thanks!

"You can tell whether a man is clever by his answers. You can tell whether a man is wise by his questions." — Naguib Mahfouz

----- Original Message ----
From: Bryen <suseROCKS@xxxxxxxxx>
To: opensuse@xxxxxxxxxxxx
Sent: Monday, October 29, 2007 8:37:17 PM
Subject: Re: [opensuse] Laptop power conservation



On Mon, 2007-10-29 at 20:08 -0500, Bryen wrote:
On Mon, 2007-10-29 at 17:55 -0700, Simon Roberts wrote:
Hi all,

I have been running SuSE 10.2 on a dual core laptop for a while
(looking forward to upgrading to 10.3, but that has to be planned for
first).

I have had abysmal battery performance from the start (new machine,
new battery). I pretty much dismissed this on the "well, Toshiba won't
tell anyone except micky$loth how to drive their power management
stuff, so I'm stuck with it.

However, I just shut down beagle (finally! been meaning to for
ages) and discovered that my battery life more than doubled from about 40
minutes to 95 minutes. So, now I'm wondering if there are other things I
can do to improve this further.

Any suggestions would be gratefully received.

In particular, I notice that I seem to have one CPU mostly running
full speed (1.6Ghz) while the other core is scaling. Can I "encourage"
the system to run both cores at lower speed? (Can I perhaps shut one
down altogether, and if so is that sensible?) Anything else that I've not
thought of?

A popular tool that I have used in the past, is powertop. It is a
tool
released by Intel that looks at running processes and offers
suggestions
for where to cut back on unnecessary services in order to boost
battery
life.

I should probably also add that the site for this tool is at
http://www.lesswatts.org/projects/powertop/

--
---Bryen---

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