Getting the Power on/off and Lid buttons to work...

1) You must have the ACPI-enabled kernel running
2) Install the acpid daemon
3) Make following changes to files....
4) Start the acpid daemon for the first time...
	/etc/init.d/acpid start

-----------------------------------------------------------------------------
			/etc/rc.d/rc.local

[snip existing contents]
# Use the omnibook APM emulation for most things
modprobe omnibook apmemu=1
# But use ACPI for power and lid buttons
modprobe button
# Start the ACPI daemon
/etc/init.d/acpid start
-----------------------------------------------------------------------------

-----------------------------------------------------------------------------
			/etc/acpi/powerbtn.sh	(chmod 755!)

#!/bin/sh -e
/sbin/init 0
-----------------------------------------------------------------------------

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			/etc/acpi/lidbtn.sh	(chmod 755!)

#!/bin/sh -e

# Shutdown on lid close if not on AC.
case `cat /proc/omnibook/ac` in
*off*)
	/sbin/init 0
	;;
esac
-----------------------------------------------------------------------------

-----------------------------------------------------------------------------
			/etc/acpid/events/powerbtn

event=button[ /]power
action=/etc/acpi/powerbtn.sh
-----------------------------------------------------------------------------

-----------------------------------------------------------------------------
			/etc/acpid/events/lidbtn

event=button/lid
action=/etc/acpi/lidbtn.sh
-----------------------------------------------------------------------------


N.B.  You might be tempted to implement sleep state S1 using the lid
button.  If you do this as its action you will halt the processor...

        echo -n 1 > /proc/acpi/sleep

Unfortunately, I have not figured out what it takes to wake the processor up.