Hi dwagner,

I have attempted to reproduce an issue, but didn't succeed.
We have used an identical hardware setup with a reference rx460 card and
couldn't reproduce a hang on various kernel versions.

There is still a possibility that some kernel config options might be causing
an issue. 
If its possible, could you please provide kernel configuration so the testing
environment is identical.

Also does the issue reproduce reproduce if you disable DC? (amdgpu.dc=0 in GRUB
menu)

Thanks 

Nik