Comment 13 for bug 63439

(do you use bios F17? and, are you sure, that the psmouse module gets
unloaded b4 rebooting? that's what made it working for me without
removing all psu's. otherwise - if that doesn't work - removing the
psu's should will work for sure - but sucks. anyways, i expect hp to
release a bios with a proper working acpi soon.

greetings,
Bastian)

Yes I use F17 bios ;)

The hdd is more noisy than my old laptop rahh :)