Right, with apm disabled acpi should take over.. you never showed a dmesg with acpi enabled yet, so, can't we work with that.
If apm is at fault for some reason, you could try version 1.1 instead of 1.2.
Quote:
Originally Posted by apm(4)
The driver supports versions 1.0, 1.1, and 1.2 interface specifications.
..
The value of 0x0101 would specify version 1.1 of the interface specification to be used.
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This can be set via config(8) or boot time UKC, sadly this all is really hit and miss.. sometimes vendors just don't entirely comply with standards.
Code:
ukc> change apm
321 apm0 at bios0 disable flags 0x0
change [n] y
flags [0] ? 0x0101
321 apm0 changed
321 apm0 at bios0 disable flags 0x101
ukc> quit