Date: Wed, 8 Oct 2008 00:28:29 +0200
From: Pavel Machek <pavel@suse.cz>
To: "Renato S. Yamane" <yamane@diamondcut.com.br>
Cc: Auke@suse.cz, " <auke-jan.h.kok@intel.com>"@suse.cz,
       linux-kernel@vger.kernel.org, rjwysocki@sisk.pl,
       power-management_other@kernel-bugs.osdl.org
Subject: Re: [Bug 10797] Battery is drained after poweroff
Message-ID: <20081007222829.GT6604@elf.ucw.cz>
References: <20494.201.3.158.14.1223417777.mandic:mail - neo@webmail.mandic.com.br>
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> >>>> ...and it is not linux problem because it works okay on my thinkpad. See?
> >>>
> >>> Yes, this is a Linux problem (at least in release >= 2.6.22)
> >>> This happening *only* in Linux (Kernel >=2.6.22).
> >>
> >> Wow, now that's useful info.
> 
> I don?t comment this before because we already said this in bug reports
> (links above).

Sorry about that. lkml has rather big traffic.

> >> I guess you _could_ do git bisect? ;-).
> 
> So sorry, but I really don?t now how can I do this.
> I?m an user, not developer. Can you send me a "how-to" about git
> bisect?

http://kerneltrap.org/node/11753

There may be better HOWTOs around.

> >>> And is impossible find wich device eats power (eaten current is too low,
> >>> and is not enought to make hot).
> >>
> >> So how fast is it eating power... can you estimate Watts eaten?
> 
> Eaten ~5% of battery each 10h.

Lets assume 40Wh battery... 0.5% per hour... that means 200 hours to
empty. 0.5% per hour is 40 * 0.005 Wh/h = 0.2 W AFAICT... hmm, that's
quite low. Debugging this will not be easy :-(.
									Pavel 

-- 
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(cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html
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