components/desktop/mate/mate-desktop/patches/02-xrandr-probing.patch

   1 --- mate-desktop-1.12.1/libmate-desktop/mate-rr.c.~1~   2015-11-30 10:10:03.000000000 +0300
   2 +++ mate-desktop-1.12.1/libmate-desktop/mate-rr.c       2015-12-05 17:39:12.583263260 +0300
   3 @@ -515,10 +515,35 @@
   4  static ScreenInfo *
   5  screen_info_new (MateRRScreen *screen, gboolean needs_reprobe, GError **error)
   6  {
   7 +    GTimeVal   cur_time_val;
   8 +    gint64     cur, prev;
   9 +
  10 +    g_assert (screen != NULL);
  11 +
  12 +    if ( screen->priv->info != NULL ) {
  13 +        g_get_current_time(&cur_time_val);
  14 +        cur = (gint64) cur_time_val.tv_sec * G_USEC_PER_SEC + cur_time_val.tv_usec;
  15 +        prev =(gint64) screen->priv->last_update_time.tv_sec * G_USEC_PER_SEC + screen->priv->last_update_time.tv_usec;
  16 +
  17 +        /* Only referesh the info after 2 seconds have elapsed since last
  18 +         * update, otherwise it will cause a lot of extra probing on the X
  19 +         * server.
  20 +         */
  21 +        if (((cur - prev) < 0) || ((cur - prev) > 2000000)) {
  22 +            screen->priv->last_update_time = cur_time_val;
  23 +        }
  24 +        else {
  25 +            /* Don't return any update, which should result in caller using
  26 +             * existing data
  27 +             */
  28 +            g_warning("Call to screen_info_new is too frequent, skipping...");
  29 +            return( NULL );
  30 +        }
  31 +    }
  32 +
  33      ScreenInfo *info = g_new0 (ScreenInfo, 1);
  34      MateRRScreenPrivate *priv;
  35
  36 -    g_assert (screen != NULL);
  37
  38      priv = screen->priv;
  39
  40 @@ -688,6 +713,9 @@
  41
  42          priv->info = screen_info_new (self, TRUE, error);
  43
  44 +       /* Initialize the last udpate time */
  45 +       g_get_current_time (&(priv->last_update_time));
  46 +
  47          if (!priv->info) {
  48             return FALSE;
  49         }
  50
  51 --- mate-desktop-1.24.0/libmate-desktop/mate-rr-private.h       2020-02-10 11:33:51.000000000 +0000
  52 +++ mate-desktop-1.24.0/libmate-desktop/mate-rr-private.h.new   2020-02-15 21:23:48.202041412 +0000
  53 @@ -46,6 +46,7 @@ struct MateRRScreenPrivate
  54      int                                rr_major_version;
  55      int                                rr_minor_version;
  56
  57 +    GTimeVal                   last_update_time;
  58      Atom                        connector_type_atom;
  59  };
  60