From owner-freebsd-current@FreeBSD.ORG  Wed Nov  7 19:52:25 2007
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From: Chuck Swiger <cswiger@mac.com>
To: Kevin Oberman <oberman@es.net>
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Date: Wed, 7 Nov 2007 11:27:12 -0800
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Cc: current@freebsd.org
Subject: Re: Recent update of 7-BETA causes laptop to freeze on battery
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On Nov 7, 2007, at 11:18 AM, Kevin Oberman wrote:
> After an update of my laptop to 7-BETA2 on Nov. 4, I can no longer run
> on battery. If I boot on battery, everything is normal until devd is
> started. It immediately fires off /etc/rc.d/power_profile which
> sets my system to C4.

Can you adjust hw.acpi.cpu.cx_lowest to something like C2 instead of C4?

-- 
-Chuck