linux-kernel - Re: [Bug 10797] Battery is drained after poweroff

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Message-ID: <48EB88F2.3090100@diamondcut.com.br>
Date:	Tue, 07 Oct 2008 13:06:10 -0300
From:	"Renato S. Yamane" <yamane@...mondcut.com.br>
To:	Pavel Machek <pavel@...e.cz>
CC:	linux-kernel@...r.kernel.org, rjwysocki@...k.pl,
	power-management_other@...nel-bugs.osdl.org
Subject: Re: [Bug 10797] Battery is drained after poweroff

Pavel Machek wrote:
Renato S. Yamane wrote:
>> Can someone help us with this bug?
>> <http://bugzilla.kernel.org/show_bug.cgi?id=10797>
>>
>> Same problem is reported in Ubuntu:
>> <https://bugs.launchpad.net/ubuntu/+source/linux/+bug/110784>
>>
>> This is not a hardware problem, because if the same laptop is poweroff
>> by Windows, battery charge don't change.
> 
> ...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).

>> And, if I suspend to ram/disk BEFORE poweroff, battery charge don't
>> change (suspend to ram/disk --> WakeUp --> Poweroff).
> 
> Which machine is that? Can you find out which device eats power? (It
> should be warm).

This problem is happening in Toshiba Satellite M45-S355, Toshiba Equium
A100-306, HP DV8000, HP DV9500, Dell Latitude D630, Toshiba M110, Sony
Vaio VGN-S2XP, Toshiba Satellite A105-S4384, Toshiba Satellite M55-S3314
and Toshiba Satellite A105-S2201 as you can see in bug report listed above.

And is impossible find wich device eats power (eaten current is too low,
and is not enought to make hot).

Best regards,
Renato
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