Comment 11 for bug 62990

That is strange. On my notebook blacklisting asus_acpi really does help... maybe it only works on the A6Km. :/

Could you try blacklisting some of the other acpi modules? You can find them all in the directory below. You also need to add seperate lines in /etc/modprobe.d/blacklist for every module... otherwise only the first module is counted for.

/lib/modules/2.6.17-10-generic/kernel/drivers/acpi

Since hald is hanging on acpi lid, the button acpi module is a good candidate. I tried this on my notebook and got rid of the hal error. This also disabled suspend / hibernate functions, which I guess is the expected behaviour.

Maybe you could even try booting with noacpi - just to see if the hal error message disappears.