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Date: Sun, 20 Jun 2010 18:11:24 +0200
From: Stefan Farfeleder <stefan@fafoe.narf.at>
To: freebsd-acpi@freebsd.org
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Subject: Dell Precision m4400 acline problems
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Hello,

I'm running FreeBSD current on a Dell Precision m4400 notebook and got
the following issue: When I unplug the notebook's power, the CPU
performance goes down to < 50%. While this isn't nice, the real problem
is that when I replug the power adapter, the performance stays low. So I
basically have to reboot to get back at full performance :(

I suspect this is an ACPI-related problem.  You can find dmesg output,
ACPI tables and ASL at http://people.freebsd.org/~stefanf/m4400/ .

BTW I'm not using powerd.

Cheers,
Stefan