1。檢查是否不小心按了切換外界顯示器的熱鍵,連接外接顯示器看有無圖像,若有就按熱鍵看是否能切換回來,但筆記本圖像信號一般分兩路,一路到lcd,一路到vga接口,vga口有信號不一定lcd就是好的
i tried 連接外接顯示器, 起先,外接顯示器有圖像,after a while , it went off .laptop's 顯示器自始至終都沒.
Thans, little MM.
I'll check 2 and 3 later to see if they work.