The vblank event request must specify the crtc for which to request the event. This fixes kmssink synchronisation for crtcs other than the first. https://bugzilla.gnome.org/show_bug.cgi?id=765064
The vblank event request must specify the crtc for which to request the event. This fixes kmssink synchronisation for crtcs other than the first. https://bugzilla.gnome.org/show_bug.cgi?id=765064