원문 게시자: originalmachead ,
'''Connect to an external monitor.''' If that works you problem is in the internal display chain. You have to work through connectors, cables, controllers and display to figure out which is bad. If the external doesn't work at all you have a GPU/logic board problem… the DIY fix would be to replace the logic board. ''If this answer is acceptable '''please remember to return and mark it'''.''