Why don't I get Unity as an option when logging in?

Question

I'm on Xubuntu 14.04.

I ran sudo apt-get install unity. It ran successfully.

But when I log out, I don't get the option to log in again with Unity. This is what I see:

I have tried rebooting. Did I miss something?

Answer 1

The sessions typically are listed on the login screen if they are read from .desktop files provided in /usr/share/xsessions folder. On my system ( default Unity desktop ) I have the following ubuntu.desktop file :

[Desktop Entry]
Name=Ubuntu
Comment=This session logs you into Ubuntu
Exec=gnome-session --session=ubuntu
TryExec=unity
Icon=
Type=Application
X-LightDM-DesktopName=Unity
X-Ubuntu-Gettext-Domain=gnome-session-3.0

I suggest you add the following file , but remove the Icon= part and perhaps X-LightDM-DesktopName=Unity

Answer 2

Try:

sudo apt-get --purge remove unity

Then reinstall unity BUT THIS TIME WHILE INSTALLING IF A SCREEN POPS UP ASKING YOU TO CHOOSE BETWEEN "LIGHTDM" AND SOMETHING ELSE, CHOOSE "LIGHTDM".

Answer 3

Try

sudo apt-get --purge remove unity

and

sudo apt-get install ubuntu-desktop