I can confirm this bug for the Thinkpad W520 as well. Bug report attached.
** Attachment added: "bug" https://bugs.launchpad.net/ubuntu/+source/gnome-power-manager/+bug/791082/+attachment/2185181/+files/bug -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/791082 Title: Battery monitor doesn't show level on ThinkPad X220 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gnome-power-manager/+bug/791082/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs