Re: Saving battery power
On Fri, Mar 09, 2007 at 09:25:46PM +0100, Thorsten Schmidt <firstname.lastname@example.org> wrote:
> Am Freitag, 9. März 2007 20:42 schrieb Mike Hommey:
> > On Fri, Mar 09, 2007 at 08:32:21PM +0100, Thorsten Schmidt
> <email@example.com> 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?