fb vout: set i_visible_*

modules/video_output/fb.c

@@ -296,8 +296,8 @@ static int Open(vlc_object_t *object)
         }
     }
 
-    fmt.i_width  = sys->width;
-    fmt.i_height = sys->height;
+    fmt.i_visible_width  = sys->width;
+    fmt.i_visible_height = sys->height;
 
     /* */
     vout_display_info_t info = vd->info;
@@ -314,7 +314,7 @@ static int Open(vlc_object_t *object)
 
     /* */
     vout_display_SendEventFullscreen(vd, true);
-    vout_display_SendEventDisplaySize(vd, fmt.i_width, fmt.i_height, true);
+    vout_display_SendEventDisplaySize(vd, fmt.i_visible_width, fmt.i_visible_height, true);
     return VLC_SUCCESS;
 }