https://bugs.freedesktop.org/show_bug.cgi?id=109539
--- Comment #7 from jon jon780@gmail.com ---
Do you still see the issue occur when amdgpu.dc=1 if you disable DP1.2 support in your monitor's OSD?
I will let you know. After 7+ days of uptime without a single crash with amdgpu.dc=0 I updated from kernel 4.20.5 to 4.20.7, set amdgpu.dc=1 and disabled displayport 1.2 on the monitor using displayport. I will report back.