2012 MacBook Pro with external screen, random black outs

elf69

macrumors 68020
Original poster
Jun 2, 2016
2,322
482
Cornwall UK
Well as title really.
My macbook pro external AND internal screen (internal less so) sometimes goes black for 2-5 seconds.

Anything on screen likes videos etc still play and audio is not affected.

It is very annoying.

my 24" screen is not too big for the macbook to handle, I dont think.
 

elf69

macrumors 68020
Original poster
Jun 2, 2016
2,322
482
Cornwall UK
Well swapped out the 24" screen with my old 20" cinema screen, has a tear in the polarising film but works and is usable mostly. Bough and OFFICIAL new apple DVI adaptor as well.

Been using all evening and not a single black out on the external screen. so the screen or 3rd party cable must be at fault.