很可能是設置問題，不一定是硬件壞了。試試下麵的設置：

來源: 白雲青山於 2015-11-30 17:58:02 [舊帖] [給我悄悄話] 本文已被閱讀：次

Control Panel\Appearance and Personalization\Display\Screen Resolution

connect to a projector

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