Due to a problem in the Intel® Quartus® Prime Pro Edition Software version 19.1, when using the JESD204B Intel® FPGA IP in TX mode in Intel® Stratix® 10 devices with E-Tile transceivers, the intellectual property (IP) will introduce a disparity error when configured for a single lane ( L=1) in bonded mode.
To work around this problem, when configuring the JESD204B Intel® FPGA IP IP in L=1 mode, enable the non-bonded mode.
This problem is fixed strating from Intel® Quartus® Prime Pro Edition Software version 19.3.