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To: std <std@suddenlink.net>
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From: Lowell Gilbert <freebsd-questions-local@be-well.ilk.org>
Date: Fri, 04 Apr 2008 10:46:42 -0400
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Cc: freebsd-questions@freebsd.org
Subject: Re: laptop won't boot w/o ac adapter plugged in
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std <std@suddenlink.net> writes:

> I have a newish laptop hp tx1320us with FreeBSD rel. 70 build.  If I don't 
> have the power cord plugged in, the system hangs at 
>
> Entropy harvesting: ethernet point_to_point
>
> If tap the power/reset slider on the case, it prints the following:
>
> load: 2.40 cmd: dd 71 [running] 0.00u 0.00s 0% 744k
>
> Is this a power management issue (apm OR acpi)?  Plugged in, it boots fine.  
> Is there, hopefully some toggle to tell it what to do when its plugged in or 
> not?

It looks like it's actually the entropy process copying from
somewhere.  You might try disabling the serial port (which might not
be powered on battery?) to see what effect that has.