Comment # 1 on bug 107668 from Naheem Zaffar

Created attachment 141266 [details]
Dmesg output with amdgpu.dc=0

Taken when booting with Vanilla Mainline kernel
4.19.0-0.rc0.git8.1.vanilla.knurd.1.fc28.x86_64 with argument amdgpu.dc=0