Ensure we always have a valid fullscreen display mode
Ensure we always have a valid fullscreen display mode

peppy/osu-framework,ZLima12/osu-framework,peppy/osu-framework,smoogipooo/osu-framework,ppy/osu-framework,peppy/osu-framework,ppy/osu-framework,ZLima12/osu-framework,ppy/osu-framework,smoogipooo/osu-framework