Internal monitor will not display booted os
I have a mbp that will not show a anything on the screen after anything boots, but it will display to an external monitor. The apple boot screen appears on it but nothing after that. I have done a clean install, i have done an PR reset, and nvram reset and smc reset, tried booting os installs from external volumes. The when you look into the about this mac, and more information display screen it only recognizes the external monitor. Any help would be greatly appreciated.
Is this a good question?