Can the outputs be slew rate limited or not? this will help resolve an HDMI issue.
Please check whether the below thread would be helpful for you
The thread Jeyasuda pointed to outlines the basic EMI issues. Registers DR_STR, DR_STR_CLK and SR_STR_SYNC control the output drive strengths which effectively control the output slew rates of the signals. Slew rates are dependent on signal loads and the programmed values. Start with the 'medium low' settings
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