https://bugs.freedesktop.org/show_bug.cgi?id=93352
--- Comment #17 from Ilia Mirkin imirkin@alum.mit.edu --- FWIW, replaying an apitrace I was given privately with the fix I pushed out works fine on nouveau, so I think the core issues are solved, we're just left with (potential) driver issues.
I can't really help you with installing things on your box. Try the latest mesa from the git repo, and make note of any issues you have.