https://bugs.winehq.org/show_bug.cgi?id=41993
--- Comment #14 from Józef Kucia joseph.kucia@gmail.com --- (In reply to Fabian Maurer from comment #12)
Patch doesn't change the issue for me, still got the blackscreen. But for me it doesn't work with 1.8.5 either, maybe there's a second issue?
Using an R9 285 with mesa 13.0.2
I think that the patch fixes the issue reported initially by OP. If there's a second issue a new bug should be filed.