What product are you installing these drivers for?
4 RX560's and 1 RX570. I know it is not a motherboard problem, because I've
had this hardware running on that ubuntu install with AMDGPU-PRO drivers up
to about a month ago. I do remember that when we made this original
install, we ran into this problem back then. However, the person I was
working with knew linux much better than I and figured out some solution,
which I cannot get from him any more. I simply upgraded to a new build of
the AMDGPU-PRO drivers and ran into this problem again and am stuck.