Take the 2-minute tour ×
Ask Ubuntu is a question and answer site for Ubuntu users and developers. It's 100% free, no registration required.

This question already has an answer here:

I've been using Ubuntu 13.10 for about a month now. I decided to give KDE a test run. Unfortunately, it installed the KDE login screen with it. I couldn't stand it, so I spent about half an hour trying to restore the original one.

Nothing worked, until I went in through Synaptic and removed most KDE packages installed. Bad idea. Now, when I boot the computer, I am greeted with a black screen. And by that, I mean the screen has turned off completely. I am able to navigate to a virtual terminal using CTRL+ALT+F1. Here's the interesting thing; When I go to TTY7, Plymouth is still running. I go to TTY8, and my screen turns off again.

Is there a way I can fix this and get the old login screen back, or is it time to start the preparations for a re-installation? Thanks!

share|improve this question

marked as duplicate by Mitch Jul 25 at 0:46

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.

    
I tried the instructions on that question, and nothing worked. –  Sil Feb 8 at 0:07
    
tty1-tty6 are all text sessions. tty7 is your xsession and tty8-tty12 are all black screens normally. –  mchid Jul 19 at 21:16

1 Answer 1

Try:

sudo dpkg -P --force-depends lightdm
sudo apt-get install lightdm

(Reboot)

share|improve this answer

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