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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!

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possible duplicate of How to return the login screen to the default –  Sneetsher Feb 7 at 20:55
    
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
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1 Answer 1

Try:

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

(Reboot)

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