Original website: http://wmpower.sourceforge.net/
wmpower is a Window Maker dock application for linux allowing the user to graphically see (and set) the power management status of his laptop. It supports both APM and ACPI kernels, plus it interfaces directly to toshiba hardware (but should work with every laptop).
A newer version may be available in the Window Maker dockapps git
git clone https://repo.or.cz/dockapps.git
(View in browser.)