I recently upgraded to 11.10 on my Lenovo ThinkPad T520, and I'm not able to load Unity 3D (I'm not selecting 2D at login menu either).

me@mycomp:~$ echo $DESKTOP_SESSION
ubuntu-2d

I ran the unity support test below as well.

me@mycomp:~$ /usr/lib/nux/unity_support_test -p
Xlib:  extension "GLX" missing on display ":0.0".
Xlib:  extension "GLX" missing on display ":0.0".
Xlib:  extension "GLX" missing on display ":0.0".
Error: unable to create the OpenGL context

And it looks like I only have one graphics card:

me@mycomp:~$ lspci | grep VGA
00:02.0 VGA compatible controller: Intel Corporation 2nd Generation Core Processor Family Integrated Graphics Controller (rev 09)

Also, Ubuntu lists nothing under the "Additional Drivers" window.

Any help would be extremely appreciated as I'm somewhat of a noob. Thanks!

Edit 1:

Here is the output of lshw -C display

me@mycomp:~$ sudo lshw -C display
  *-display               
       description: VGA compatible controller
       product: 2nd Generation Core Processor Family Integrated Graphics Controller
       vendor: Intel Corporation
       physical id: 2
       bus info: pci@0000:00:02.0
       version: 09
       width: 64 bits
       clock: 33MHz
       capabilities: msi pm vga_controller bus_master cap_list rom
       configuration: driver=i915 latency=0
       resources: irq:43 memory:f0000000-f03fffff memory:e0000000-efffffff ioport:5000(size=64)