First off, please note that last night I already posted this question to a launchpad mailing list, so this could be considered a cross post. However, I think this is a better place to ask the same question

The question:

How can I configure my Ubuntu 12.04, with upgraded kernel (3.6), to use the Intel HD Graphics 4000 adapter? (Intel HD 4000 is the standard of 3rd gen Intel Core i7 (Ivy Bridge) graphics adapter)

Some output:

$ glxinfo

name of display: :0
X Error of failed request:  BadRequest (invalid request code or no such operation)
  Major opcode of failed request:  154 (GLX)
  Minor opcode of failed request:  19 (X_GLXQueryServerString)
  Serial number of failed request:  12
  Current serial number in output stream:  12

$ cat /etc/X11/xorg.conf this is probably the farthest from what it should be

Section "Screen"
    Identifier  "Default Screen"
DefaultDepth    24
EndSection
Section "Module"
    Load    "glx"
EndSection

$ lspci I only listed the line I think are relevant. If you want more info in order to help me, please comment :)

00:02.0 VGA compatible controller: Intel Corporation Ivy Bridge Graphics Controller (rev 09)
00:1b.0 Audio device: Intel Corporation Panther Point High Definition Audio Controller (rev 04)
16:00.0 VGA compatible controller: Advanced Micro Devices [AMD] nee ATI Whistler XT [AMD Radeon HD 6700M Series]
16:00.1 Audio device: Advanced Micro Devices [AMD] nee ATI Turks HDMI Audio [Radeon HD 6000 Series]