diff --git a/src/backend/wayland/wl_handlers.c b/src/backend/wayland/wl_handlers.c
index 37ca363..293317c 100644
--- a/src/backend/wayland/wl_handlers.c
+++ b/src/backend/wayland/wl_handlers.c
@@ -236,9 +236,15 @@ handle_pointer_button(struct wl_listener *listener, void *data)
                         wl_state.pointer_x < _wtb->x + _wtb->width &&
                         wl_state.pointer_y >= _wtb->y &&
                         wl_state.pointer_y < _wtb->y + _wtb->height) {
+                        wwarning("btn: wings fb id=0x%lx xy=(%d,%d) wh=(%d,%d) click=(%.0f,%.0f)",
+                                 (unsigned long)_wtb->id, _wtb->x, _wtb->y,
+                                 _wtb->width, _wtb->height,
+                                 wl_state.pointer_x, wl_state.pointer_y);
                         break;
                     }
                 }
+                if (!_wtb)
+                    wwarning("btn: no wings fb found, using tv id=0x%lx", (unsigned long)_tv->id);
                 wev.window = _wtb ? _wtb->id : _tv->id;
                 wev.u.button.window = wev.window;
                 wev.u.button.x = _wtb ? (wl_state.pointer_x - _wtb->x) : (int)_sx;