beretta

Ok audio is solved with VoodooHDA288 but for the display flickering and black windows when scrolling, as previous post, nobody knows? 

Hi, I'm running el capitan 10.11.6 

I've problem in audio (alc270) not working and display flickering for some seconds when logging. Sometimes when scrolling the windows are black and the icons can't be seen. 

...any help really appreciated!