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Date:      Sat, 9 Aug 2003 06:52:56 +1000
From:      Rudolph Pereira <memetical@yahoo.com.au>
To:        Mark Santcroos <marks@ripe.net>
Cc:        freebsd-mobile@freebsd.org
Subject:   Re: battery life on presario 720
Message-ID:  <20030808205256.GC610@starfleet.org.au>
In-Reply-To: <20030807205608.GA687@laptop.6bone.nl>
References:  <20030712014031.GA48560@starfleet.org.au> <20030805065245.GB655@laptop.6bone.nl> <20030805183737.GC47022@starfleet.org.au> <20030805205852.GB675@laptop.6bone.nl> <20030807192225.GA3767@starfleet.org.au> <20030807205608.GA687@laptop.6bone.nl>

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On Thu, Aug 07, 2003 at 10:56:08PM +0200, Mark Santcroos wrote:
> On Fri, Aug 08, 2003 at 05:22:25AM +1000, Rudolph Pereira wrote:
> > > Ok, can you set hw.acpi.cpu.economy_speed=1, and measure the battery time
> > > again?
> > I got ~2:20 uptime with this. Slightly better, but it could
> > have been because the machine was completely idle.
> 
> Ok, I'm out of options at this time. It is clearly a lot less than Linux
> and Windows at this time.
> 
> I don't have experience in this area of ACPI so won't be able to help you.
Thanks for following this up. 
Nate Lawson said on acpi-jp that freebsd doesn't yet implement
low-power hardware idle states, hence the low battery life. 
Sorry if I wasted your time.



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