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I need to configure KDM by system settings, because lightDM is not working any more (I don't know why, just stopped working), so, is there any way to do it?

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marked as duplicate by Luis Alvarado Mar 19 '13 at 3:16

This question was marked as an exact duplicate of an existing question.

Hit Control+Alt+F1 and in the terminal that appears login and run

sudo dpkg-reconfigure kdm

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