What does that means and how to switch from 2D to 3D.
I have a AMD Radeon7670M
I tried installing and re installed the driver it recommended in additional drivers
and i have checked synaptic package manager all the 2D and 3D related results are marked green.Now What to do i am very confused.
Ubuntu 12.04 Running in 2D Mode – Fix Missing Features
12.04atidriversunityunity-2d
Best Answer
Okay, now I have faced this exact same problem myself and solved this a few days previously. My previous answer was in accordance with the standard procedure for troubles regarding logging in to Unity-3D
Apparently, the official drivers that are tested by Ubuntu are not being detected and are in effect worthless.
Here is the solution I found to the issue (quoting from another site) :
http://nerdysermons.blogspot.in/2011/11/solve-graphic-driver-errors-unity-3d.html
This worked for me just fine. Hope it works for you too.