I have upgraded my system from ubuntu 13.10 to 14.04.But then i can't access my desktop, only mouse pointer is visible no unity bar . Then i restarted the computer and log in as guest. it is worked. What happened to my system ? How can I access my desktop ? PLs Help
After looking for different alternatives, I finally found the solution. Try this, it worked for me: http://www.upubuntu.com/2011/10/how-to-fix-login-issues-on-ubuntu-1110.html
At login screen, press Ctrl+Alt+F1 to switch to console mode.
Use your username and password to login.
Enter now these commands:
ls -Shla | grep “Xauthority”
sudo mv .Xauthority Xauthority.old
sudo shutdown -r now