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Hi I have an old laptop acer 2420, before lubuntu 14.04 (clean install) it cant restart or shutdown, when i try the live CD with the same lubuntu 14.04 and after eject the disk the os wont shutdown with enter, I have to use alt-control-printscreen-reisub

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What happens when you do sudo shutdown -P? –  Mitch May 4 at 6:27
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