The nouveau driver is experimental and is not supported by Ubuntu, you are welcome to use it but at your own risk. On the other side it seems the FX series does not work well with Unity, It should have been blacklisted in the first place but I am not sure why it wasn't.
** Package changed: xserver-xorg-video-nouveau (Ubuntu) => mesa (Ubuntu) ** Changed in: mesa (Ubuntu) Importance: Critical => Medium -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/762478 Title: [nouveau] No icons shown in unity launcher -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs