Unity is enabled by default on Ubuntu 11.04 Natty Narwhal, and the latest version Ubuntu 11.10 Oneiric Ocelot will enable Unity by default too. Does your hardware support Unity? How to check it? Please read the rest of the article to figure it out!

You must have Ubuntu Natty or Ubuntu Oneiric installed to perform this check:
  • /usr/lib/nux/unity_support_test -p
You can see the result of this test in the above picture, I have Intel GMA X4500HD and it supports Unity 3D, how about yours?