RELENG_6 power button ignored after halt if ACPI enabled

[Wilkinson, Alex]

    0n Sun, Sep 17, 2006 at 10:29:26PM -0700, Nate Lawson wrote: 

    >Try setting this sysctl:
    >sysctl hw.acpi.disable_on_reboot=1
    >
    >It may be that you need acpi to stop managing your power button after halt.

I dont get it ? I thought you needed ACPI to do the actual shutdown ?

 -aW