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I’m Running Ubuntu 11.10, is it some way to activate 3d acceleration like in the 11.4 or do I have to run it in slow 2d mode.

2d mode works out of the box when fresh installing, but I think 3d was a bit faster.

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If you know how to active Unity 3D in Ubuntu 11.04, then you also know how to do it in Ubuntu 11.10. The action is the same. I know I have done it. – grahammechanical Oct 7 '11 at 12:31
This question has been asked before and answered. [How to activate Unity 3D answered][1] [1]:… – grahammechanical Oct 7 '11 at 12:34
Thanks grahammechanical, The solution for nvidia 7400 is to edit a file like this, open a terminal. Open the file with gedit: sudo gedit /etc/environment Add this line att the bottom of the file: add: UNITY_FORCE_START=1 Save the file And reboot – Daniel Oct 7 '11 at 13:16
possible duplicate of Geforce Go 7300/7400 blacklisted, can I still run Unity? – Jorge Castro Oct 7 '11 at 16:48

You need to add UNITY_FORCE_START=1 It's Explained how to do that here: Geforce Go 7300/7400 blacklisted, can I still run Unity? Also, make sure you have the drivers installed (go to additional drivers and see if there are any for download)

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Unity3d doesn't work with Nvidia 7xxx cards. That's why you get the 2d mode, which isn't particularly slow. Bug reports had been files since Natty, but I don't think the 3d mode is going to work.

Here is one:

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