1. gnome-session-fallback is build from gnome-panel source code that is why your computer is saying problem is with gnome-panel. 2. reinstalling gnome-session-fallback should not solve anything. It is transitional package and does not contain anyting. Problem is somewhere else. This package can be removed. 3. GNOME Fallback is now called GNOME Flashback.
Have you tried to re-select session from login screen? GNOME Flashback (Metacity) and/or GNOME Flashback (Compiz). Maybe there is some problems upgrading from 12.04 to 14.04. Are you using extra ppa? In tags there is gnome3-ppa. Not sure, but this might cause problems if there is installed newer GNOME components. Can you right click on desktop? Is nautilus autostarted or you are getting completly empty screen. Can you attach extra log file? I would like to see ~/.cache/upstart /gnome-session-Unity.log. After you fail to login, restart PC and then login in GNOME session (not in Unity), then attach asked file. Yes, I need gnome-session-Unity.log, don't ask why. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1380095 Title: Gnome Fallback[s] don't work in 14.04. Work once ONLY if reinstalled To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gnome-panel/+bug/1380095/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs