ACPI debug messages

[Eric McCorkle]

Hello,

I decided to try tracing through the evaluation of the DSM method in 
order to track down where the graphics driver failure I mentioned 
earlier is coming from.

However, it looks like there's already an extensive debug logging system 
in place in the acpica system.

Can this be controlled from user space (presumably through sysctls), or 
does it need to be compiled in?