[ltp] short battery life on t40
Jason 'T' Rolfe
linux-thinkpad@linux-thinkpad.org
Thu, 11 Sep 2003 10:44:41 -0400 (EDT)
Freddy -
I know this should be an RTFM-type question, but I can't find a manual of
any sort: How do you adjust the display power in linux or otherwise?
Also, I am running ext3. Do you have any idea how much power is saved by
switching to a non-journaling file system? Do I actually need to
remove my wlan modules? Why isn't turning off wireless with ifdown
sufficient? Thanks for your help.
Jason
On Thu, 11 Sep 2003, Frederic Gaus wrote:
> Did you check the following?? :
>
> - Lowest Display
> - Not a journaling fs
> - no wlan active (modules removed)
> - did you tried to play with bdflush?
>
> Improve these settings was most useful for me ;-)
>
> Have fun
> Freddy
>
> On Thu, Sep 11, 2003 at 03:18:16AM -0400, Jason 'T' Rolfe wrote:
> > Hey. My new T40 is only getting about 2 to 2.5 hours of battery life (as
> > reported by apm), as oppposed to the expected 5. I am running Debian with
> > kernel version 2.4.21, as well as apm and the thinkpad and thinkpadpm
> > modules. I've tried running apmiser, but it doesn't appear to do much.
> > My BIOS settings are configured for maximum battery life when not running
> > on AC. /proc/cpuinfo reports that, although my processor is 1.6 ghz, I'm
> > only running at 598.076 mhz when using batteries. I'm not running cpufreq
> > or cpudyn, but I would think that they wouldn't do much given that cpuinfo
> > reports 600 mhz operating speed. Do you have any idea how to improve my
> > battery life? Thanks.
> >
> > Jason Rolfe
> >
> > --
> > The red in the sky is ours. . .
> >
> >
> > --
> > The linux-thinkpad mailing list home page is at:
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> >
>
--
Jason
--
The red in the sky is ours. . .