I found one issue on my laptop lgs430, sometimes appears various artifacts on the screen and stuck this ... my graphic card is intel hd 3000.
I've tried change the fakesmc.kext but not resolve.
I've installed on my laptop yosemite 10.10 and updated successfully, but now i don't have idea how to activate backlight and control the brightness.
intel i3 sandy bridge
intel hd 3000