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Yesterday my 12.04 installed new updates and I clicked on restart.

GRUB loaded normally, but then instead of my pretty desktop (auto login turned on) I got a black screen asking for login and password.

Why? How can I get my desktop back to before?

This is due to updates I am sure, nothing in hardware has changed and no other display settings changed... using AMD driver from their site for my raedeon 6850 and have catalyst driver working fine.

I have tried typing in commands like sudo start lightdm and sudo startx these didn't do anything - just froze.

3 Answers 3

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I tried your solution but it didn't seem to work. I removed my fglrx driver by the following command:

sudo sh /usr/share/ati/fglrx-uninstall.sh

And then my desktop came back after reboot. Then reinstalled ATI catalyst driver. Now, everything is working fine.

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in that black screen, login with your username and password, and install gdm

sudo apt-get install gdm

that might solve the problem, I also had same problem when I did some things with my installation..

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  • hi..thanks so much for replying.. ok will that restore it..i appreciate it thankyou :) May 30, 2012 at 9:15
  • if that doesn't work (as indicated by some other source, try sudo apt-get install lightdm (gdm might have problem in 12.*)
    – Five
    May 30, 2012 at 12:02
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I have the same problem with Black Opal which is based on 12.04. Also switching to tty8 then tty7 seems to get you to the login screen with lightdm installed. I switched to gdm and the problems is gone, I just don't like how it changed the login screen to the old look...
ctrl+alt+f8
ctrl+alt+f7

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