https://bugs.freedesktop.org/show_bug.cgi?id=91998
--- Comment #3 from Ilia Mirkin imirkin@alum.mit.edu --- Interesting, the pipe is all-white on nvc0. I checked if this was an instance of https://bugs.winehq.org/show_bug.cgi?id=38869, but that doesn't seem to be the case.