I had a problem precisely described here: http://www.webupd8.org/2013/01/ubuntu-lightdm-black-screen-when-using.html, black screen with blinking cursor instead of login screen. I've switched to gdm using sudo dpkg-reconfigure gdm -- but faced the same problem, now loading process stops on "red-white Ubuntu dots" (without activity under this splash). And to login, I still need to restart display manager: Ctrl+Alt+F1 and sudo service gdm restart.

How to make Ubuntu to boot normally?

  • What graphics card and drivers are you using? The main reason this hasn't been answered is that its missing significant detail. – Andy Jun 27 '13 at 15:41
  • @Andy Radeon HD 5670. X.org drivers or fglrx-updates -- no difference. – leventov Jun 27 '13 at 15:55
  • Are you using any proprietory drivers? You may want to disable those. – Dillmo Jun 29 '13 at 13:10
  • If you can re-install x server: sudo apt-get remove --purge xserver-xorg , sudo apt-get install xserver-xorg , sudo dpkg-reconfigure xserver-xorg – bob Jul 1 '13 at 13:57

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