No ACPI power-down with halt -p?

Hi,

for a while now, powering down my PeeCeeh that is based on an Asus
A7V600-X board (BIOS rev. 1003 which is most recent, Phoenix/Award BIOS)
with halt -p doesn't work, it shuts down processes, unmounts file
systems, everything, but the ACPI powerdown times out. Linux 2.4 and 2.6
get it right on the same hardware.

It used to work a couple of months ago with a Gigabyte 7ZXR 1.0 (AMI
BIOS), if that's worth a dime.

Any URL with ACPI-specific bug reporting directions?

-- 
Matthias Andree

Encrypted mail welcome: my GnuPG key ID is 0x052E7D95