I have installed Ubuntu 14.04. It worked for approx. 2 days. But today when I turned it on launcher & Menu bar was absent & ctrl+alt+t was also not working. I tried "sudo service lightdm restart" it didn't worked. Please help me.. and launcher is present in guest session but not in Admin login..


If above command doesnot work try this(it saved me a week ago): `Ctrl+Alt+F1´

sudo service lightdm stop rm ~/.config/dconf/user sudo service lightdm start

Further look here: 14.04 LTS No Dash / Launcher after update through Software Updater

  • 2
    This deletes all your unity settings, including wallpaper, unity bar shortcuts, ...! Aug 8 '16 at 23:19

I have tried many different things, but below solution worked for me:

  • Go to your folder: usr/bin and click "gnome-terminal".
  • When terminal opens write "ccsm"
  • This will open unity screen.
  • Select "unity plugin" and then tick "enable unity plugin" option.
  • That will bring back your dashboard.
  • I tried this, but nothing happens, and after I close ccsm and reopen it, none of the settings seemed to stay there. Apr 11 '18 at 2:54
  • Yeah, re-login and set the mode to 'unity' is the key step.
    – Siwei
    Sep 19 '19 at 9:50

Enter the following commands:-


login there by user name and password, type

sudo service lightdm restart

If lightdm fails to get back at normal :- Enter:- sudo apt-get update

sudo apt-get install --reinstall ubuntu-desktop
sudo apt-get install unity

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