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loaded ubuntu 12.10 but during boot gets stuck at checking battery state [ok]. It appears its some kind of loop where this message keeps repeating. Any idea on how to fix?

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Some reported it as corrupted .Xauthority file/ .Xauthority file owned by root. Removing it does the trick.

  1. Press Ctrl+Alt+F2 when you are stuck.

  2. Log in using your username and password.

  3. Execute: sudo mv /var/lib/lightdm/.Xauthority /var/lib/lightdm/.Xauthority-bak

  4. Now reboot: sudo reboot

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If you installed drivers before(downloaded from for your nvidia video card, just get a new version from that site and install it again.

It works for me.

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