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I have just installed an Xubuntu desktop on my Ubuntu Unity 14.04 system using this command:

sudo apt-get install xubuntu-desktop gksu leafpad synaptic

from this site:

After logging out and logging into an "Xubuntu session" and running this command:

sudo apt-get remove nautilus gnome-power-manager gnome-screensaver gnome-termina* gnome-pane* gnome-applet* gnome-bluetooth gnome-desktop* gnome-sessio* gnome-user* gnome-shell-common compiz compiz* unity unity* hud zeitgeist zeitgeist* python-zeitgeist libzeitgeist* activity-log-manager-common gnome-control-center gnome-screenshot overlay-scrollba* && sudo apt-get install xubuntu-community-wallpapers && sudo apt-get autoremove

and when restarting I come to a Xubuntu login window, and when I click on the little Xubuntu icon at the top righthand corner I can only run an "Xfce session" or an "Xubuntu session".

Any help will be greatly appreciated.

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up vote 3 down vote accepted

Try this

sudo apt-get install ubuntu-desktop


sudo apt-get install --reinstall ubuntu-desktop
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Thanks that is what I've done, logged out.(from terminal because the clicky thing didn't work) Logged into an "Ubuntu session" And now... Ubuntu looks wrong??? Any ideas. – Dogshead Jul 7 '14 at 8:07
"ubuntu looks wrong" , what exactly do you mean by that ? – Serg Jul 7 '14 at 8:13
Some of the icons are Xubuntu ones and the exit, minimise and maximise buttons aren't in a circle. Hope that helps – Dogshead Jul 7 '14 at 21:37
THANKS ALOT!!!!! Everything works and looks fine and I can even customise Unity – Dogshead Jul 8 '14 at 4:37
^_0 No problem, enjoy. – Serg Jul 8 '14 at 4:48

Uninstalling the entire Ubuntu desktop and reinstalling might fix the problem and it might not. Whatever the process is long and can be messy. Here's a simple way to switch back to the default Ubuntu desktop after installing Xubuntu, Kubuntu, Ubuntustudio, or any other desktop that also uses lightdm.

Open a terminal and execute the following commands:

echo '[SeatDefaults]' | sudo tee /etc/lightdm/lightdm.conf.d/50-unity-greeter.conf
echo 'greeter-session=unity-greeter' | sudo tee -a /etc/lightdm/lightdm.conf.d/50-unity-greeter.conf
sudo chmod +x /etc/lightdm/lightdm.conf.d/50-unity-greeter.conf

Reboot or restart lightdm for the changes to take effect. For an explanation of why this works click here.

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re install lightdm in the login form type alt+ctrl+f1

$ sudo service lightdm stop
$ sudo apt-get remove lightdm
$ sudo apt-get update && sudo apt-get install lightdm
$ sudo service lightdm start 
$ sudo service lightdm restart

the alt+ctrl+f7

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