Comment 3 for bug 90109

 xorg (1:7.2-0ubuntu6) feisty; urgency=low
 .
   * xserver-xorg.templates: Add xserver-xorg/config/device/extra_options so
     that extra graphics driver options can be set through debconf and
     respected by dexconf. We need this in restricted-manager to make
     restricted drivers like nvidia work OOTB for compiz, but it is certainly
     useful for other things, too. (NB that the question is never asked
     interactively).
   * debian/local/dexconf: Read above debconf key, parse it (first token is
     option name, rest of the line after first space is value), and add it as
     Option lines to the device section. (LP: #90109)