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How to change Unity 3D to 2D on Ubuntu 14.04? And, will I get any improvements in performance if do that? What software utilities will I lose if I switch to from Unity 3D to 2D?

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possible duplicate of Unity-2d on Trusty 14.04 – Pabi Jun 23 '14 at 14:41

4 Answers 4

up vote 12 down vote accepted

Unity 2D is not available in Ubuntu 14.04, thus you can't switch. The packages for unity-2d in 14.04 are just transitional dummy packages. They don't contain any files but depend on Unity 3D.

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Unity 2D is not available in Ubuntu 14.04.

However is a lightweight flavor of Ubuntu, currently available at revision 14.04. It will run far faster than even Unity 2D.

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You could also simply install another display manager, in this case lubuntu-common, I think. (lubuntu-desktop includes all out-of-the-box programs of Lubuntu) – Peter Nerlich Apr 17 at 14:16

Cannot promise performance boost as such, but see if this can be of any help (from ).

Disable the visual effects: switch to a 2D desktop environment

  1. By default, when your video card can handle it, the 3D visual effects are enabled. However, these may cause malfunctions or sluggish performance. You can disable them by switching to a 2D desktop environment.

There are several options for this.

My personal favourite is a switch to the Xubuntu desktop. But there's another option as well:

a. First, install gnome-session-fallback:

Click on the grey Ubuntu logo (Dash home). Query: terminal. Click on Terminal. Type (use copy/paste): sudo apt-get install gnome-session-fallback

Press Enter. When prompted, type your password. Your password will remain entirely invisible, not even dots will show, this is normal. Press Enter again.

b. Log out. In the login window, click on the Ubuntu logo next to your user name:

Then click on GNOME Flashback (Metacity). Note: don't select GNOME Flashback (Compiz), because that also has 3D effects, and you want to get rid of those.

c. Log in again.

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This fixed all my problems well done. – Edward Oct 5 at 11:34

I'm install LUbuntu, then in terminal

sudo apt-get install unity-2d

Reboot my system, login in Lxsession and in terminal

unity && > /dev/null

Finaly I've got unity 2d in 14.04LTS

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