[Debian-eeepc-devel] saving battery

[giggzounet]

Daniel Dalton a écrit :
> Hi, 
> 
> I'm trying to get as much battery life out of my eeepc as possible. It's
> really good, I can currently get about 5 hours or just over on my
> 1008ha. I've turned off bluetooth, wireless and the screen as I'm
> blind. 
> I have also enabled laptop-mode from the debian package
> laptop-mode-tools. 
> 

In this package. there are several modules, which you can enable. For
example the powersaving of your sound card if it is possible.

you can modify the laptop-mode-tools.conf in order to remount the file
with noatime/RELATIME then control the powermangement of your harddisk.
but it could be problematic for the hard disk...for example to set
"hdparm -B 1 /dev/sd*" is good to save battery life...but not good for
the disk life...there is lots of documentation on the net which explain
the problem.

> What else can I do to save battery? I read somewhere I can throttle down
> the cpu speed when necessary? Or is this a dangerous procedure? Also is
> it possible to turn off power to the ethernet port as I rarely use
> this...
> 

for the ethernet port see laptop-mode-tools. there is a module for that.

you can turn offf all the video output too.

for the modification of the cpu speed i don't know for eeepc. on others
laptops which I'm using it's great...but on my eeepc (1201N) I can't do
this. Look if you have speedstep available for your processor.

> Or is what I'm doing now about the best you can do? I'm very happy with
> it, but of course if I can increase it by half an hour or so I
> definitely will. Mainly I'm just using it for taking down notes, and
> every now and then connect to the wifi...
> 

Bye bye
Guillaume