Interestingly I also see this error when I just saved my settings to switch back from LightDM to GDM - was seeing if this had been fixed or not. I choose GDM, save my choice and get these errors in the terminal.
dpkg-maintscript-helper: warning: environment variable DPKG_MAINTSCRIPT_NAME missing dpkg-maintscript-helper: warning: environment variable DPKG_MAINTSCRIPT_PACKAGE missing -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/834592 Title: System hangs during boot with "Checking battery state" on screen To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/lightdm/+bug/834592/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
