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求助,DM8168的HDMI输出不定期黑屏。

Other Parts Discussed in Thread: TPS40400

目前我们的设备的hdmi显示会不定期黑屏,开机正常,过一段时间后显示变黑,此时HDMI时序仍在,显示1400*900@60HZ。

这是什么原因?应该从软件还是硬件方面着手?