(In reply to Bas Nieuwenhuizen from comment #4)
> Created attachment 124151 [details] [review] [review]
> ci-64-tess-blocks.patch
> 
> Does the attached patch help? If not I would appreciate it if someone could
> find the first commit that fails (using e.g. bisect).
> 
> Also, I noticed all reporters use hawaii/grenada pro chips. If anyone with a
> different chip also has this issue, please let me know.

Unfortunately, ci-64-tess-blocks.patch is making the issue more severe. The
frequency of "black triangles on screen" in Tomb Raider is higher.