Jason updated the Khronos spec to explicitly state that Wayland surfaces must support VK_PRESENT_MODE_MAILBOX_KHR. ANV did so since day one (back in 2015) Cc: mesa-stable@lists.freedesktop.org Cc: Bas Nieuwenhuizen <bas@basnieuwenhuizen.nl> Cc: Dave Airlie <airlied@redhat.com> Signed-off-by: Emil Velikov <emil.velikov@collabora.com> Reviewed-by: Jason Ekstrand <jason@jlekstrand.net>