diff --git a/tools/libinput-debug-gui.c b/tools/libinput-debug-gui.c
index 4f7feafc..fc5af4d8 100644
--- a/tools/libinput-debug-gui.c
+++ b/tools/libinput-debug-gui.c
@@ -88,6 +88,7 @@ struct window {
 
 	/* sprite position */
 	struct point pointer;
+	struct point unaccelerated;
 
 	/* these are for the delta coordinates, but they're not
 	 * deltas, they are converted into abs positions */
@@ -651,6 +652,15 @@ draw_pointer(struct window *w, cairo_t *cr)
 	cairo_rel_line_to(cr, 0, -15);
 	cairo_fill(cr);
 
+	/* draw unaccelerated sprite */
+	cairo_set_source_rgb(cr, 0.7, 0.7, 0.7);
+	cairo_save(cr);
+	cairo_move_to(cr, w->unaccelerated.x, w->unaccelerated.y);
+	cairo_rel_line_to(cr, -5, -10);
+	cairo_rel_line_to(cr, 10, 0);
+	cairo_rel_line_to(cr, -5, 10);
+	cairo_fill(cr);
+
 	/* pointer deltas */
 	mask = ARRAY_LENGTH(w->deltas);
 	first = max(w->ndeltas + 1, mask) - mask;
@@ -765,6 +775,8 @@ map_event_cb(GtkWidget *widget, GdkEvent *event, gpointer data)
 
 	w->pointer.x = w->width/2;
 	w->pointer.y = w->height/2;
+	w->unaccelerated.x = w->width/2;
+	w->unaccelerated.y = w->height/2;
 	w->deltas[0].x = w->pointer.x;
 	w->deltas[0].y = w->pointer.y;
 
@@ -1071,20 +1083,22 @@ handle_event_motion(struct libinput_event *ev, struct window *w)
 	struct libinput_event_pointer *p = libinput_event_get_pointer_event(ev);
 	double dx = libinput_event_pointer_get_dx(p),
 	       dy = libinput_event_pointer_get_dy(p);
+	double dx_unaccel = libinput_event_pointer_get_dx_unaccelerated(p),
+	       dy_unaccel = libinput_event_pointer_get_dy_unaccelerated(p);
 	struct point point;
 	const int mask = ARRAY_LENGTH(w->deltas);
 	size_t idx;
 
-	w->pointer.x += dx;
-	w->pointer.y += dy;
-	w->pointer.x = clip(w->pointer.x, 0.0, w->width);
-	w->pointer.y = clip(w->pointer.y, 0.0, w->height);
+	w->pointer.x = clip(w->pointer.x + dx, 0.0, w->width);
+	w->pointer.y = clip(w->pointer.y + dy, 0.0, w->height);
+	w->unaccelerated.x = clip(w->unaccelerated.x + dx_unaccel, 0.0, w->width);
+	w->unaccelerated.y = clip(w->unaccelerated.y + dy_unaccel, 0.0, w->height);
 
 	idx = w->ndeltas % mask;
 	point = w->deltas[idx];
 	idx = (w->ndeltas + 1) % mask;
-	point.x += libinput_event_pointer_get_dx_unaccelerated(p);
-	point.y += libinput_event_pointer_get_dy_unaccelerated(p);
+	point.x += dx_unaccel;
+	point.y += dy_unaccel;
 	w->deltas[idx] = point;
 	w->ndeltas++;
 }
diff --git a/tools/libinput-debug-gui.man b/tools/libinput-debug-gui.man
index 5b03ec41..7cfe64bb 100644
--- a/tools/libinput-debug-gui.man
+++ b/tools/libinput-debug-gui.man
@@ -51,6 +51,14 @@ The cursor is displayed as black triangle. Various markers are displayed in
 light grey to help debug cusor positioning. The cursor movement is
 the one as seen by libinput and may not match the cursor movement of the
 display server.
+.PP
+The unaccelerated cusor motion is displayed as a grey upside-down triangle.
+The movement of this cursor typically reflects the relative motion in device
+units and can differ significantly to the normal cursor movement.
+.PP
+The unaccelerated cursor motion is also displayed as a yellow snake. This is
+the connected set of recent deltas. Unlike the unaccelerated cursor, these
+coordinates are not clipped to the window.
 .TP 8
 .B Button testing
 Four oblongs are displayed at the bottom. The top three are left, middle,