For me, this occurs when using the guest session and logging out or switching back to the original user session. It doesn't obviously cause any other problems apart from the error report - and the loss of the power status icon.
-- You received this bug notification because you are a member of Ubuntu Desktop Bugs, which is subscribed to gnome-power-manager in Ubuntu. https://bugs.launchpad.net/bugs/736557 Title: gnome-power-manager crashed with SIGSEGV in fclose() -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs