I have a Rx560 and which ever monitor is plugged into display port or DVI has this slight white flicker as shown here Imgur: The magic of the Internet (monitor on left is plugged into display portm one on the right is HDMI).
I have tried other cables and adapters, reinstalled the drivers and have also replaced the Graphics Card but the flicker is still there.
At this point im lost for ideas and help would be appreciated.