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AM335x LCDC+SII9022 HDMI输出最大支持多大分辨率?

 我们板子LCDC接的SII9022 HDMI输出

之前遇到过Linux Core LCD Controller User Guide 里提到的LCDC memory bandwidth issues,通过提高主频,没有报 DMA FIFO underflow and frame synchronization lost errors

现在的问题是:

HDMI只输出 “”please wait。。。“”就停止了

执行/etc/init.d/matrix_gui restart 没有任何反应。

1.如何才能输出图形界面呢?通过fbset读取分辨率为1280*1024,难道是分辨率太大带不动吗?

2.HDMI怎么设置固定的输出分辨率呢?比如720*576

谢谢了。