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I read that there is now a 2D version of Unity built on Qt. How do I install it, and once it's installed, how do I switch to it?

4 Answers 4

36

For 11.10, 12.04, & 12.10

Users of 11.10 and above have Unity 2D installed by default already.

To use it, logout, you will be confronted by the LightDM manager.

Then, click the little cog wheel, and select Ubuntu 2D.

Then, enter your password, hit Enter and you'll be logged into Unity 2D.

enter image description here

For 13.04, no need to do this - they have integrated the Unity 2D and Unity 3D environments.

6
  • 1
    is the cog wheel position saved for succeeding logins?
    – n611x007
    Mar 18, 2013 at 14:45
  • 1
    in which file is this setting saved?
    – n611x007
    Mar 18, 2013 at 14:51
  • it is indeed saved for succeeding logins. as for were, no clue.
    – jrg
    Mar 18, 2013 at 15:14
  • 2
    13.04, no such thing is present on the login page. Jul 17, 2013 at 6:13
  • 1
    According to Ubuntu Forums: Unity 2D was removed from 12.10 onwards. Aug 18, 2013 at 15:56
25

For 10.10

For people running 10.10 you can add the Unity 2D PPA.

Go to Applications -> Ubuntu Software Center -> Edit (Menu) -> Software Sources -> Other Software (tab) -> Add and then paste ppa:unity-2d-team/unity-2d-daily and then install unity-2d from the software center.

This will install all of the necessary dependencies to run Unity 2D, including a "Unity 2D" session that you'll need to login with. Then log out and when logging back in select "Unity 2D" at the bottom of the login screen.

alt text
(source: xrmb2.net)

Command Line Instructions

sudo add-apt-repository ppa:unity-2d-team/unity-2d-daily
sudo apt-get update
sudo apt-get install unity-2d
1
  • 1
    Just installed this 0n 10.10 Netbook Edition and the difference in performance is huge - much better usability Jan 15, 2011 at 22:37
21

For 11.04

Users of 11.04 can install unity-2dInstall unity-2d from the archive.

This will install all of the necessary dependencies to run Unity 2D, including a "Unity 2D" session that you'll need to login with. Then log out and when logging back in select "Unity 2D" at the bottom of the login screen.

alt text
(source: xrmb2.net)

Command Line Instructions

sudo apt-get install unity-2d
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  • 7
    I think the relevant package is now unity-2d not -default-settings. Jan 28, 2011 at 2:43
  • Natty users can of course also use the daily ppa if they prefer.
    – robin0800
    Mar 13, 2011 at 16:33
5

For 13.04 and onwards


According to Ubuntu Forums:

Unity 2D was removed from 12.10 onwards. We now have something called llvmpipe which has the purpose of providing Unity 3D on lower specified PCs.

I don't think there will be interest in resurrecting 2D development.

I know this is not a direct answer to the question posted, but it rather leaves you with two possible choices (if you seriously need Unity 2D):

  1. Reinstall and stick with 12.04 (currently 12.04.2).
  2. Use the "fallback" session in either 12.10 or 13.04.
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  • 3
    Link to "fallback session" appears to be a private message or some other thing that public users lack permissions to - please copy/paste into this answer. This appears to cover the intended material liberiangeek.net/2013/04/… Apr 10, 2014 at 22:38

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