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请教我们用am5728的开发板可以lcd显示屏可以点亮，但hdmi不能点亮; 我们自己设计的版卡，硬件设计和开发板完全一样，内核也一样，但hdmi能点亮，lcd却不能点亮什么原因，谢谢！
HDMI是直接接到屏上么？
通过hdmi线，连上电脑显示器
