Re: Saving battery power

[Thorsten Schmidt <meine_mailings@web.de>]

Hello,

Am Freitag, 9. März 2007 20:42 schrieb Mike Hommey:
> On Fri, Mar 09, 2007 at 08:32:21PM +0100, Thorsten Schmidt 
<meine_mailings@web.de> wrote:
> > Hello at all,
> >
> > for some time I've been trying to reduce my laptop's power consumption
> > (while running on battery power) on my Fujitsu-Siemens Lifebook C1320
> > with Debian etch.
> > - I echo powersave to
> > /sys/devices/system/cpu/cpu0/cpufreq/scaling_governor - I installed
> > laptop-mode in order to shut down my harddrive if it is unused. - I don't
> > use swap,  /tmp/ is a ramdisk-mount and /var/tmp links to /tmp, (I've 1
> > GB RAM)
> > Thus my hd is barely used and my CPU reaches C3.
> >
> > But for some reason, Windows is more efficient in power saving. (3,5h vs.
> > 4,5h battery life while surfing wireless).
> > Is there anything else I can do to save battery power?
>
> Basically, no, except waiting for Linux ACPI support to get better.

Would Debian/kBSD Debian/OpenSolaris, Debian/Darwin be an option?

Thanks,
Thorsten.