Chosen Solution
Good afternoon, I have a monitor that is not picking up, it works the USB, sound, camera, but when I connect the video cable it does not power on, it does not recognize on the mac, I already changed the logic board and the board power suply and it still continues the same problem, does anyone have any solution?
Check system preferences > displays. Is it seen here? If it is then you have a panel issue or backlight panel issues. To check backlight shine a torch on the display and see if any icons or the dock is visible.
