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I'm using 12.10 with Unity 3D on my laptop and it's really laggy compared to when I used 12.04 with Unity 2D

How can I install Unity 2D for 12.10?

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They removed unity 2d. I don't know if you can get it back. Try a different desktop environment like XFCE. –  hnasarat Nov 24 '12 at 22:41
    
but I prefer Unity –  Chin Nov 24 '12 at 22:52
    
Why can't you just purge unity3d from ubuntu 12.10 and install unity2d from http://packages.ubuntu.com/quantal/unity-2d via gdebi-gtk or dpkg. Another option would be to compile it from source. –  student Mar 10 '13 at 16:51
    
can you please go into detail on how to do this? Since I'm completely clueless... –  Chin Mar 22 '13 at 2:46
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4 Answers 4

Unity 2D has been removed ; in it's place, LLVMpipe is now used to perform the relevant shader operations on the CPU, in effect, taking the place of dedicated graphics hardware.

See ; http://www.phoronix.com/scan.php?page=news_item&px=MTE2MTQ

This may work better on a 64-bit install, if you have the hardware, as noted in the article.

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There is a work around for those troubled by lags in Unity. For this, you need to add the following line in your ~/.xprofile file. If the file doesn't exist, create it.

export UNITY_LOW_GFX_MODE=1

The line enables low graphics mode in Unity which disables some fancy effects like active blur and transparency.

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bro there is NO way you can purge unity 3d in ubuntu 13.04 cuz the unity2d package is DUMMY you will have to install ubuntu 12.04 lts ( supported till april 2017)

-student

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try to run this code in terminal

sudo apt-get install llvm-dev
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what does it do? will it install unity 2D? –  Chin Nov 28 '12 at 22:16
    
I'm not sure why you'd recommend installing LowLevelVirtualMachine in this case? –  fabricator4 Dec 2 '12 at 1:51
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