I tested the source from your link and it seems to be completely broken for me. The kernel with latest commit: "drm/i915: manage PCH PLLs separately from pipes". will produce oops on the start. Se attached dmesg. I also tryed to reset the source to HEAD~1, but this kernel will start with black screen.
Created attachment 59957
dmesg bug48652
I tested the source from your link and it seems to be completely broken for me. The kernel with latest commit: "drm/i915: manage PCH PLLs separately from pipes". will produce oops on the start. Se attached dmesg. I also tryed to reset the source to HEAD~1, but this kernel will start with black screen.