Dear Sir.
One problem we encountered was that the iMx6 output TMDS signal to the TFP401A and no image on the monitor.
Confirm that DE / Hsync has no frequency. But iMx6 and TFP401A add a 1:4 splitter in between.
As long as one output is connected to TFP401A. The other three outputs If any monitor is connected, the TFP401A will have an image signal.
If the other three outputs are not connected to the monitor, the TFP401A still has no action. What is the reason? Thank you~