linux-kernel - Re: 2.6.21-rc4: extremely high power consumption

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Message-ID: <20070321235052.6b00cfac@werewolf-wl>
Date:	Wed, 21 Mar 2007 23:50:52 +0100
From:	"J.A. Magallón" <jamagallon@....com>
To:	Pavel Machek <pavel@....cz>
Cc:	kernel list <linux-kernel@...r.kernel.org>
Subject: Re: 2.6.21-rc4: extremely high power consumption

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