diff --git a/arch/sim/src/sim/sim_framebuffer.c b/arch/sim/src/sim/sim_framebuffer.c
index c3c69d49c7c..ce0b0a1be19 100644
--- a/arch/sim/src/sim/sim_framebuffer.c
+++ b/arch/sim/src/sim/sim_framebuffer.c
@@ -426,6 +426,7 @@ void sim_x11loop(void)
   if (now - last >= MSEC2TICK(16))
     {
       last = now;
+      fb_notify_vsync(&g_fbobject, FB_NO_OVERLAY);
       if (fb_paninfo_count(&g_fbobject, FB_NO_OVERLAY) > 1)
         {
           fb_remove_paninfo(&g_fbobject, FB_NO_OVERLAY);
@@ -463,7 +464,8 @@ int up_fbinitialize(int display)
 
 #ifdef CONFIG_SIM_X11FB
   g_planeinfo.xres_virtual = CONFIG_SIM_FBWIDTH;
-  g_planeinfo.yres_virtual = CONFIG_SIM_FBHEIGHT * CONFIG_SIM_FRAMEBUFFER_COUNT;
+  g_planeinfo.yres_virtual = CONFIG_SIM_FBHEIGHT *
+                             CONFIG_SIM_FRAMEBUFFER_COUNT;
   ret = sim_x11initialize(CONFIG_SIM_FBWIDTH, CONFIG_SIM_FBHEIGHT,
                           &g_planeinfo.fbmem, &g_planeinfo.fblen,
                           &g_planeinfo.bpp, &g_planeinfo.stride,
diff --git a/drivers/video/fb.c b/drivers/video/fb.c
index a0a1df78fa6..a61260492de 100644
--- a/drivers/video/fb.c
+++ b/drivers/video/fb.c
@@ -1223,17 +1223,14 @@ static int fb_get_planeinfo(FAR struct fb_chardev_s *fb,
 }
 
 /****************************************************************************
- * Name: fb_do_pollnotify
+ * Name: fb_notify_paninfo
  ****************************************************************************/
 
-static void fb_do_pollnotify(wdparm_t arg)
+static void fb_notify_paninfo(FAR struct fb_paninfo_s *paninfo,
+                              pollevent_t events, int overlay)
 {
-  FAR struct fb_paninfo_s *paninfo = (FAR struct fb_paninfo_s *)arg;
   FAR struct fb_priv_s * priv;
   irqstate_t flags;
-  int overlay;
-
-  overlay = paninfo - paninfo->dev->paninfo - 1;
 
   flags = enter_critical_section();
   for (priv = paninfo->dev->head; priv; priv = priv->flink)
@@ -1245,12 +1242,26 @@ static void fb_do_pollnotify(wdparm_t arg)
 
       /* Notify framebuffer is writable. */
 
-      poll_notify(priv->fds, CONFIG_VIDEO_FB_NPOLLWAITERS, POLLOUT);
+      poll_notify(priv->fds, CONFIG_VIDEO_FB_NPOLLWAITERS, events);
     }
 
   leave_critical_section(flags);
 }
 
+/****************************************************************************
+ * Name: fb_do_pollnotify
+ ****************************************************************************/
+
+static void fb_do_pollnotify(wdparm_t arg)
+{
+  FAR struct fb_paninfo_s *paninfo = (FAR struct fb_paninfo_s *)arg;
+  int overlay;
+
+  overlay = paninfo - paninfo->dev->paninfo - 1;
+
+  fb_notify_paninfo(paninfo, POLLOUT, overlay);
+}
+
 #ifdef CONFIG_FB_SYNC
 /****************************************************************************
  * Name: fb_sem_wait
@@ -1355,6 +1366,30 @@ static void fb_pollnotify(FAR struct fb_chardev_s *fb, int overlay)
  * Public Functions
  ****************************************************************************/
 
+/****************************************************************************
+ * Name: fb_notify_vsync
+ * Description:
+ *   notify that the vsync comes.
+ *
+ * Input Parameters:
+ *   vtable  - Pointer to framebuffer's virtual table.
+ *   overlay - Overlay index.
+ *
+ ****************************************************************************/
+
+void fb_notify_vsync(FAR struct fb_vtable_s *vtable, int overlay)
+{
+  FAR struct fb_chardev_s *fb;
+  FAR struct fb_paninfo_s *paninfo;
+
+  fb = vtable->priv;
+  if (fb != NULL)
+    {
+      paninfo = &fb->paninfo[overlay + 1];
+      fb_notify_paninfo(paninfo, POLLPRI, overlay);
+    }
+}
+
 /****************************************************************************
  * Name: fb_peek_paninfo
  * Description:
diff --git a/include/nuttx/video/fb.h b/include/nuttx/video/fb.h
index 9a3c6595998..3c53b8c6a86 100644
--- a/include/nuttx/video/fb.h
+++ b/include/nuttx/video/fb.h
@@ -1008,6 +1008,19 @@ FAR struct fb_vtable_s *up_fbgetvplane(int display, int vplane);
 
 void up_fbuninitialize(int display);
 
+/****************************************************************************
+ * Name: fb_notify_vsync
+ * Description:
+ *   notify that the vsync comes.
+ *
+ * Input Parameters:
+ *   vtable  - Pointer to framebuffer's virtual table.
+ *   overlay - Overlay index.
+ *
+ ****************************************************************************/
+
+void fb_notify_vsync(FAR struct fb_vtable_s *vtable, int overlay);
+
 /****************************************************************************
  * Name: fb_peek_paninfo
  * Description: