I can confirm this bug on a Dell E6420 where I repeatedly see two phantom batteries after a suspend/resume cycle. This leads to the forced hibernate which is frustrating. The fix from Steven Bakker at this bug report (https://bugzilla.redhat.com/show_bug.cgi?id=704110#c12) fixed it for me but it seems like a hack workaround rather than a proper fix for gpm.
** Bug watch added: Red Hat Bugzilla #704110 https://bugzilla.redhat.com/show_bug.cgi?id=704110 -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/828273 Title: After resume, showing 2 batteries even though only one installed To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/upower/+bug/828273/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs