I'm unable to fix my Ubuntu desktop (GUI only). See:
https://askubuntu.com/questions/481788/14-04-lts-unity-reset-but-cant-login-normally
14.04 LTS No Dash / Launcher after update through Software Updater
The issue is in the areas of Unity / Gnome / Xsession.
How should I debug? Which are the useful log files I can look into and post to this forum for help?
