Why is the F-Tile HDMI Intel® FPGA IP Design Example with Fixed Rate Link (FRL) and Transition Minimized Differential Signaling (TMDS) mode on clocked video interface not working?

Due to a problem in the Intel® Quartus® Prime Pro Edition Software version 22.4, changes to the SystemPLL IP caused the rx_tmds_clk to not toggle/stay low.

Without this clock operating correctly, the Transition Minimized Differential Signaling (TMDS) mode will not work.

A patch is available to fix this problem for the Intel® Quartus® Prime Pro Edition Software version 22.4. 

Download and install Patch 0.04 from the following links:

• Version 22.4 Patch 0.04 for Windows (.exe) 
• Version 22.4 Patch 0.04 for Linux (.run)
• Readme for version 22.4 Patch 0.04 (.txt)

This problem is scheduled to be fixed in a future release of the Intel® Quartus® Prime Pro Edition Software.