Intel HD630 Flickering

[Jed.Brite]

18,1 was final step to flicker free for me as well.

I was having the same problem and 18,1 resolved it for me, thanks to all.

Used the kexts, the id changes, -disablegfxfirmware, last bit of patience, etc from all through this post.

I finally won, only to find out the HD 630 won't stabily do dual monitors.