XCB: reset the X11 screen saver when displaying a picture

modules/video_output/xcb/glx.c

@@ -466,8 +466,11 @@ static void PictureRender (vout_display_t *vd, picture_t *pic)
 static void PictureDisplay (vout_display_t *vd, picture_t *pic)
 {
     vout_display_sys_t *sys = vd->sys;
+    xcb_connection_t *conn = XGetXCBConnection (sys->display);
 
+    xcb_force_screen_saver (conn, XCB_SCREEN_SAVER_RESET);
     vout_display_opengl_Display (&sys->vgl, &vd->source);
+    xcb_flush (conn);
     picture_Release (pic);
 }
 

modules/video_output/xcb/x11.c

@@ -433,6 +433,8 @@ static void Display (vout_display_t *vd, picture_t *pic)
 
     if (!p_sys->visible)
         goto out;
+    xcb_force_screen_saver (p_sys->conn, XCB_SCREEN_SAVER_RESET);
+
     if (segment != 0)
         ck = xcb_shm_put_image_checked (p_sys->conn, p_sys->window, p_sys->gc,
           /* real width */ pic->p->i_pitch / pic->p->i_pixel_pitch,

modules/video_output/xcb/xvideo.c

@@ -685,6 +685,8 @@ static void Display (vout_display_t *vd, picture_t *pic)
 
     if (!p_sys->visible)
         goto out;
+    xcb_force_screen_saver (p_sys->conn, XCB_SCREEN_SAVER_RESET);
+
     if (segment)
         ck = xcb_xv_shm_put_image_checked (p_sys->conn, p_sys->port,
                               p_sys->window, p_sys->gc, segment, p_sys->id, 0,