http://bugs.winehq.org/show_bug.cgi?id=58832
--- Comment #2 from debtwjxv@sharklasers.com --- I also tested with Wayland by setting: WINEPREFIX="$PWD/wine/elma2" wine reg.exe add HKCU\Software\Wine\Drivers /v Graphics /d wayland
Apparently then EGL is always used, reconfiguring UseEGL for "X11 Driver" unsurprisingly does not change anything. Xwayland is not started and I always get the same grey screen.