Square artifacts with HD4000

[animator]

Hello there

i used efi injection for HD4000 ig-platformid 0x01620005 and got HD4000 working with my GTX680 on triple monitor setup. I had to set HD4000 as primary display in BIOS otherwise it was not recognized by ML.

The problem is that while HD4000 is primary i get square artifacts on the left side of screen when running opengl app/game. Is there a solution for that ?

Also Noveau sensors detects the vram of gtx 680 like 125 Gb (madness) but in ML there is normal 2 Gb. When HD4000 is not primary it detects it as 2048 mb normally. But then i get garbled graphics from HD4000.