crwdns2933423:0crwdne2933423:0
crwdns2918538:0crwdne2918538:0

crwdns2934241:0crwdne2934241:0 arbaman

crwdns2934249:0crwdne2934249:0:

Any answer to your question would be pure guess as there’s no way to tell what’s wrong without tests. It maybe be the screen, the cable or even some component on the logic board. Plugging the Mac to an external screen just tells us the GPU is working fine, nothing else.

crwdns2915684:0crwdne2915684:0:

open