Date: Fri, 14 Oct 2005 12:34:18 -0400 From: "Dan Langille" <dan@langille.org> To: Barkley Vowk <bvowk@math.ualberta.ca> Cc: freebsd-mobile@freebsd.org Subject: Re: Suspend drains battery on IBM T42 Message-ID: <434FA5CA.31658.856AD66D@localhost> In-Reply-To: <20051014101559.U937@3jane.math.ualberta.ca> References: <1129300711.742.6.camel@RabbitsDen>
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On 14 Oct 2005 at 10:23, Barkley Vowk wrote: > On Fri, 14 Oct 2005, Alexandre "Sunny" Kovalenko wrote: > > > On Thu, 2005-10-13 at 01:02 +0000, Eric Kjeldergaard wrote: > >> you may want to check out radeontool > >> http://www.init-main.com/radeontoolport.tar.gz . Another common user > >> of power in suspended laptops seems to be USB not shutting down. Good > >> luck with your troubles, > > > Good way to check whether USB is the culprit is to use something like > > USB-powered reading light and suspend. On mine (Averatec 3150H) it stays > > on, even when machine seem to go to sleep. I don't have solution for > > this though... > > Ok, the dpms patch got me to about 12 hours of life, if I used radeon > tool to turn it all off, I get about 16 hours. Which is a *HUGE* > improvement, and I'm very happy with that. My radeon chipset is still > warm in suspend mode (I pulled the keyboard off and hooked a thermal > probe up to it) I don't know if anyone else has noticed that. How it it you're measuring this time period? I'm guessing you're not standing there watching for the lights to fade out. > However, I've got the USB problem listed above as well. I'd really like to > solve that, I expect it would boost my suspend time up to APM times. Have you tried the suspend to disk? That's what Windows calls hibernation. -- Dan Langille : http://www.langille.org/ BSDCan - The Technical BSD Conference - http://www.bsdcan.org/
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