i used the one from here http://www.insanelymac.com/forum/topic/286092-guide-1st-generation-intel-hd-graphics-qeci/ then droped it in my extra folder and ran a myfix after.
if it is I3 or i5 it most probably has HD2500 graphics like my i3 came with. either replace the core with an ivy 3770 i7 or like the post above yours add a compatible graphics card.
i think there is a chameleon flag for backlight also just i dont recal what it is at the moment... but it looks like you hit the right framebuffer id with the 3. your definitely closer