2.6.21-rc4: extremely high power consumption

2.6.21-rc4: extremely high power consumption

[Pavel Machek]

Hi!

Today I heard fans running a bit too much. I checked with top, and got
no obvious power hog. And now acpi battery says:

root@amd:/data/l/zaurus/oz.spitz.3541# cat
/proc/acpi/battery/BAT0/state
present:                 yes
capacity state:          ok
charging state:          discharging
present rate:            35248 mW
remaining capacity:      1850 mWh
present voltage:         14259 mV

...35W! This machine normally eats 14W.

Now it got better, I still see nothing at top... 22W. That's still 8W
more than it should be. What is going on?
								Pavel
-- 
(english) http://www.livejournal.com/~pavelmachek
(cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html

Re: 2.6.21-rc4: extremely high power consumption

[J.A. Magallón]

On Wed, 21 Mar 2007 23:29:38 +0100, Pavel Machek <pavel@ucw.cz> wrote:

> Hi!
> 
> Today I heard fans running a bit too much. I checked with top, and got
> no obvious power hog. And now acpi battery says:
> 
> root@amd:/data/l/zaurus/oz.spitz.3541# cat
> /proc/acpi/battery/BAT0/state
> present:                 yes
> capacity state:          ok
> charging state:          discharging
> present rate:            35248 mW
> remaining capacity:      1850 mWh
> present voltage:         14259 mV
> 
> ...35W! This machine normally eats 14W.
> 
> Now it got better, I still see nothing at top... 22W. That's still 8W
> more than it should be. What is going on?
> 								Pavel

Periodical disk writes that eat your battery ?
No display dimming ?
No cpu speed reduction ?

Just ideas...

--
J.A. Magallon <jamagallon()ono!com>     \               Software is like sex:
                                         \         It's better when it's free
Mandriva Linux release 2007.1 (Cooker) for i586
Linux 2.6.20-jam05 (gcc 4.1.2 20070302 (prerelease) (4.1.2-1mdv2007.1)) #2 SMP PREEMPT