Ask Ubuntu is a question and answer site for Ubuntu users and developers. Join them; it only takes a minute:

Sign up
Here's how it works:
  1. Anybody can ask a question
  2. Anybody can answer
  3. The best answers are voted up and rise to the top

This question already has an answer here:

Last night I installed KDE. But then however my Desktop manager changed into KDM. How can I go back to my default Desktop manager lightdm??

share|improve this question

marked as duplicate by chronitis, Warren Hill, minerz029, guntbert, Eric Carvalho Dec 8 '13 at 0:41

This question has been asked before and already has an answer. If those answers do not fully address your question, please ask a new question.

use -

sudo dpkg-reconfigure lightdm

hope it helped you.

share|improve this answer

Not the answer you're looking for? Browse other questions tagged or ask your own question.