Good night I'm with a similar problem my HD 4550 stays with the Vram of 8MB
Good evening, I'd like some help for laypeople. I was able to install Sierra and El Captain without any problem, plus the video card when I install the kext VRAM is 8MB, I tried with a card off also stays with VRAM with 6MB. My video card is the Intel HD 4550. Thank you.