I have a Macbook Air 2015 A1466 which has been here a while hiding in the corner which we have checked before for a display issue. Tech guy said the GPU had failed but there was a picture using an external display if I remember rightly, problem is that it don't power up anymore, so before I look into fixing the power up issue is it possible the GPU could only display externally and never again on it's built in display if it had failed?
I have a Macbook Air 2015 A1466 which has been here a while hiding in the corner which we have checked before for a display issue. Tech guy said the GPU had failed but there was a picture using an external display if I remember rightly, problem is that it don't power up anymore, so before I look into fixing the power up issue is it possible the GPU could only display externally and never again on it's built in display if it had failed?