The pmu_battery module was not built in kernels < 2.32 in Debian. gnome-power-manager previously used some different methods for battery detection. So it didn't depend on presence of pmu_battery. IIRC, the problem started showing up since gnome-power-manager version 2.28. Now it can not detect battery if the pmu_battery module is not loaded.
Cheers, Onkar -- Passion - Some people climb mountains - others write Free software. Don't ask why - the reason is the same. -- To UNSUBSCRIBE, email to debian-bugs-dist-requ...@lists.debian.org with a subject of "unsubscribe". Trouble? Contact listmas...@lists.debian.org