Display is black but I can see on connected monitor
The screen is black but I can see it when I see very carefully that the screen is dark and not black. When I am connected to external monitor everything looks fine ( I have to mirror the screen).
So my imac display is practically black but when i look carefully it seems brightness is not enough. I have tried increasing brighness without any help.
My External monitor works perfectly fine when I mirror the display.
I opened and checked if there is loose connection but its fine. Question is following
1. what and how to check the its not display or anything wrong?
2. If at all i have to replace what should I replace?
Cette question est-elle utile ?