Comment # 22 on bug 77785 from Alex Deucher

(In reply to comment #20)
> Created attachment 99363 [details]
> Trine 2 - radeon
> 
> 
>  One more example of those blackiness, with Trine 2 game. Game is also
> partially black like WoS games, so maybe it is the same issue :).

You are probably seeing bug 66067 for trine 2.