After some experiments with the ndiswrapper driver, KDE4 stopped
providing a frontend to various power capabilities. It doesn't detect
the battery, it doesn't offer suspend or hibernate it the shutdown
script, et cetera. The battery properties are still accessable through
/sys/class/power/BAT1 and I can still suspend and hibernate using
pm-suspend and pm-hibernate.
I would like use KDE's frontend, though, as finding out how long the
battery can hold from reading it's voltage isn't the most comfortable
thing.
