I completed an upgrade from Ubuntu 11.04 to 14.04 LTS. After the upgrade finished it seems like everything was working. Then I turned the computer off over night and the next day the machine powers up, I get the logon screen and I put in my password, and then I get a blank screen. I am running on a Dell inspiron 531, using the 64 bit ubuntu. Is there any way to get around this? I do have the nvidia driver installed. I also noticed that on the blue screen during booting that it showed Kubuntu 11.10, but then the login screen noted Ubuntu 12.04 LTS. When it rebooted after the update I did notice two program failures: 1. compiz closed unexpectedly, 2. ITalc also closed unexpectedly.
Ubuntu – Blank screen after logging in with password
12.04upgrade
Related Solutions
You might want to try sudo dpkg --purge winbind to completely remove it first (this package is a part of samba which facilitates sharing files over a network with machines running Windows). You can reinstall the package later if you wish.
Edit the mouse movement settings for the root user, by running the setting manager as root:
sudo gnome-control-center
The settings on this screen will be saved for the root user only, and be effective before session login after boot, on the user selection screen.
Best Answer
Try this:
change the default display manager from lightdm to gdm