Your lightdm,.log shows that you are failing to authenticate: [+83.70s] DEBUG: Session pid=1546: Authentication complete with return value 7: Authentication failure
So it appears that something in PAM is failing (or you are typing the wrong password!) -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1473149 Title: Lightdm refuses to work after installing kubuntu-desktop To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/lightdm/+bug/1473149/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
