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My shutdown menu stopped responding to the mouse click. How should Ubuntu be shutdown at this point? I'm on 12.04 (Precise).

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up vote 2 down vote accepted

Just press Ctrl+Alt+T on your keyboard to open Terminal. When it opens, run the command below.

sudo shutdown -h now


sudo halt -p
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Go to tty ( ctrl+alt+F1) and login as root then run halt -p. But you should consider and try to figure out or get help for such problem.

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