Screen backlight won't turn off?
I have a rather strange problem. I recently replaced my screen but in the process must have damaged something as the backlight began to flicker. I then replaced the display cable and the isight cable (which includes the power cable). This did not resolve the issue. Finally, I replaced the LED display driver board and now, the backlight will not turn off. Ever. As soon as there is a power source (power or battery) the backlight turns on, even though the computer is turned off. When I boot the computer, it boots normally, with the screen functioning normally. When I power off, the backlight remains on.
I put my original faulty led driver board back in, and the backlight started flickering again. Put the new one in, the backlight won't turn off.
Did I just receive a dud driver board? It seems very strange that the screen always stays on, even though the computer is off. Any other possibilities?
Is this a good question?