ADV7611 LLC does not output enough amplitude.
DVDDIO is 1.8V, but LCC amplitude is 200mVp-p with 1.2V bias.
The reciever device is PLD.
The series resister is 10 ohm.
DR_STR_CLK[1:0] is 0x11.
The output of data bus is correct.
DVDDIO is spec'd at 3.3V not 1.8V. Even at that the min Voh = 2.4 which when ratio'd down to 1.8V would be 1.3V and it's drive strength would also be lower.
Where did you get the DVDDIO=1.8V spec?
It's my mistake.