I had same problem and I fixed it with:
sudo apt-get purge lightdm sudo apt-get install ubuntu-desktop -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/824140 Title: Boot stops after "checking battery state..." To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/lightdm/+bug/824140/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
