diff -urp gnome-settings-daemon-3.33.90.orig/plugins/power/gsd-power-constants.h gnome-settings-daemon-3.33.90/plugins/power/gsd-power-constants.h
--- gnome-settings-daemon-3.33.90.orig/plugins/power/gsd-power-constants.h	2019-08-05 18:40:19.000000000 -0500
+++ gnome-settings-daemon-3.33.90/plugins/power/gsd-power-constants.h	2019-08-31 19:43:57.783501103 -0500
@@ -18,7 +18,7 @@
  */
 
 /* The blank delay when the screensaver is active */
-#define SCREENSAVER_TIMEOUT_BLANK                       30 /* seconds */
+#define SCREENSAVER_TIMEOUT_BLANK                       300 /* seconds */
 
 /* The dim delay when dimming on idle is requested but idle-delay
  * is set to "Never" */