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Installed ubuntu 12.10 two days ago, and it works perfectly fine (I'm impressed!). I wanted to test other desktop environments, so I installed Kubuntu, Gnome3, and Xubuntu.

All of them work fine, but my login screen is now Gnome3 (I preferred Unity).

How can I set the Unity login screen to be the default again?

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Did you remove Unity ? – K.K Patel Nov 10 '12 at 3:33
No, unity is still there, and i can access it with no problem – PlamZ Nov 10 '12 at 3:44
On your login screen, you can change the desktop. Have you tried selecting Ubuntu (2D) Option from the Ubuntu Ring..? – Olu Sep 10 '14 at 10:23

This is a simple one, you just gotta set lightdm as default.

Just run dpkg-reconfigure lightdm as root and choose lightdm as default dm.

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To switch between desktops Logout. At Login Screen you can choose desktop as shown in below figure.

enter image description here

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That isn't a problem, as the menu works fine. The problem at the moment is my Login screen. The ''Skin'' of the login screen is set to look like Gnome3 when i open my computer. And i would like it to look like Unity by default D: – PlamZ Nov 10 '12 at 3:38

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