So you want to control monitor power settings? that's entirely different, Xorg is usually capable of handling that independently of the OS.
You could add the following to your .xinitrc/.xsession file:
Code:
...
/usr/X11R6/bin/xset s off
/usr/X11R6/bin/xset -dpms
...
This disables screen blanking and DPMS, which is used to suspend the monitor.. if it's a laptop you may not be able to disable screen blanking, I'm not entirely sure.
For other power management functionality from userland, the
apmd(8) daemon accompanied by the
apm(8) utility can be used to manage ACPI/APM, for a laptop, there is a sysctl to control lid behaviour.