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I have Hp laptop with windows 8.Now i install ubuntu 12.10 in a different drive.fist time it opens.But next time when booting in ubuntu it turns black and not responding.In my laptop ubuntu 12.04 lts goes smooth,but 12.10 not.please help me.

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When you boot and the screen turns black, have you tried turning up the brightness using the f2 and f3 keys? I have the same problem when booting my Pavilion m6. Once you adjust the brightness you should be able to log in normally. There is probably a way to adjust the default brightness but I'm not sure how. Anyone else?

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