I have a system with switchable graphics: an ATI Radeon HD 6770M, and an Intel HD 3000. I installed the driver from additional-drivers. The Post Release Updates one was unable to be installed, so I simply installed the other one.
Everything works fine with the AMD card.
The problem is when I switch to the Intel card to get more battery life, I have to use Gnome classic or Unity 2D. Unity 3D or Gnome 3 does not work. It just shows my desktop background and nothing else.
Does anyone have a solution for this?
Thank you in advance.
I have Ubuntu 12.04 LTS 64-bit.
EDIT: I have uninstalled Unity, so my objective is to get Gnome 3 working with my Intel card.