https://bugs.freedesktop.org/show_bug.cgi?id=77785
--- Comment #14 from smoki smoki00790@gmail.com ---
It is XRGB, MESA_FORMAT_B8G8R8X8_UNORM but need to checked it out in real situations... a think intel disable support for this "memory saver" format in screen, but radeon in classic and gallium leave it enabled :). Does that format need to be supported anymore?