You're running a Hackintosh?
Now it seems to be a purely resolution-dependent issue! The Intel GPU driver now appears to load. Do you know of any way of having the system redetect the native resolution, or hardcoding 1920x1200 during native boot only?
The problem is that the script is intended for MBA only, as far as I understand. May be that's the problem.
Unfortunately, you didn't provide X11 before the parallels tools installation.
I think the best option to boot natively is to delete xorg.conf completely. Make
cd /etc/X11
sudo mv xorg.conf xorg.conf.old
Then reboot. If you don't get back your native resolution, try to reconfigure xorg.
sudo stop lightdm
then press Alt-Ctrl-F1
login
sudo X -configure
sudo cp ~/xorg.conf.new /etc/X11/xorg.conf
startx
Hope that'll help.
P.S. If that won't work out, make
sudo cp xorg.conf.old xorg.conf
and try to change or to delete
SubSection "Display"
Depth 24
Modes "1024x768" "800x600" "640x480"
EndSubSection
in your current xorg.conf