https://bugs.freedesktop.org/show_bug.cgi?id=96762
--- Comment #3 from Kai kai@dev.carbon-project.org --- (In reply to Nicolai Hähnle from comment #2)
Do you see the issue also in an apitrace? If so, could you upload it?
Yes, I can! Find the trace at http://dev.carbon-project.org/debian/mesa.bugs/96762/firewatch.trace. You'll need your login credentials – you should have from a previous trace file – to download it (I just want to prevent needless traffic, if I should reset your password, let me know and I e-mail you a new one); other known Mesa developers without login credentials can contact me by private e-mail and I'm happy to set them up.
The trace shows the launch of the game and then the graphics settings menu as shown in attachment 124836.
Let me know, if you need something else.