https://bugs.freedesktop.org/show_bug.cgi?id=107991
--- Comment #5 from kyle.devir@mykolab.com ---
amdgpu from kernel 4.18.8 + DRM changes for 4.19
So, stable upstream plus patches, or is this the AMD Staging kernel?
It's likely a GPU specific issue in radeonsi.
I wonder if there's any way to narrow down this issue any further?
Apart from testing with your kernel config, anyways.