Hope this helps:

amnon@amsoft:~$ sudo kill `pidof gnome-screensaver`;gnome-screensaver --no-daemon --debug > ~/Desktop/screensaver_debug.log
Password:
Usage:
  kill pid ...              Send SIGTERM to every process listed.
  kill signal pid ...       Send a signal to every process listed.
  kill -s signal pid ...    Send a signal to every process listed.
  kill -l                   List all signal names.
  kill -L                   List all signal names in a nice table.
  kill -l signal            Convert between signal numbers and names.
[gs_debug_init] gs-debug.c:106 (23:27:45):       Debugging enabled
[main] gnome-screensaver.c:87 (23:27:45):        initializing gnome-screensaver 2.17.4
[query_session_id] gs-listener-dbus.c:1868 (23:27:45):   org.freedesktop.DBus.Error.ServiceUnknown raised:
 The name org.freedesktop.ConsoleKit was not provided by any .service files


[init_session_id] gs-listener-dbus.c:1886 (23:27:45):    Got session-id: (null)
[gs_fade_init] gs-fade.c:678 (23:27:45):         Fade type: 2
[gamma_info_init] gs-fade.c:352 (23:27:45):      Initialized gamma ramp fade
[initialize_server_extensions] gs-watcher-x11.c:900 (23:27:45):  Not using server's MIT-SCREEN-SAVER extension.
[gs_watcher_set_active] gs-watcher-x11.c:728 (23:27:45):         turning watcher: ON
[_gs_watcher_set_active_internal] gs-watcher-x11.c:715 (23:27:45):       Starting idle watcher
[listener_dbus_handle_system_message] gs-listener-dbus.c:1371 (23:27:45):       obj_path=/org/freedesktop/DBus interface=org.freedesktop.DBus method=NameAcquired destination=:1.11
[listener_dbus_handle_system_message] gs-listener-dbus.c:1371 (23:27:45):       obj_path=(null) interface=(null) method=(null) destination=:1.11
[listener_dbus_handle_system_message] gs-listener-dbus.c:1371 (23:27:45):       obj_path=(null) interface=(null) method=(null) destination=:1.11
[listener_dbus_handle_system_message] gs-listener-dbus.c:1371 (23:27:45):       obj_path=(null) interface=(null) method=(null) destination=:1.11
[_gs_watcher_notice_window_created] gs-watcher-x11.c:565 (23:27:49):     Window created: noticing activity on 0xE01CE2
[_gs_watcher_notice_window_created] gs-watcher-x11.c:565 (23:28:04):     Window created: noticing activity on 0x100057F
[_gs_watcher_notice_window_created] gs-watcher-x11.c:565 (23:28:04):     Window created: noticing activity on 0x1000580
[_gs_watcher_notice_window_created] gs-watcher-x11.c:565 (23:28:04):     Window created: noticing activity on 0xE01D18
[_gs_watcher_notice_window_created] gs-watcher-x11.c:565 (23:28:04):     Window created: noticing activity on 0x2A00001
[notice_events_inner] gs-watcher-x11.c:355 (23:28:04):   Adding events for 0x2A00002
[_gs_watcher_notice_window_created] gs-watcher-x11.c:565 (23:28:04):     Window created: noticing activity on 0x2A00025
[notice_events_inner] gs-watcher-x11.c:355 (23:28:04):   Adding events for 0x2A00025
[_gs_watcher_notice_window_created] gs-watcher-x11.c:565 (23:28:04):     Window created: noticing activity on 0x2A00051
[notice_events_inner] gs-watcher-x11.c:355 (23:28:04):   Adding events for 0x2A00051
[_gs_watcher_notice_window_created] gs-watcher-x11.c:565 (23:28:04):     Window created: noticing activity on 0x2A0005A
[_gs_watcher_notice_window_created] gs-watcher-x11.c:565 (23:28:04):     Window created: noticing activity on 0x2A0005B
[_gs_watcher_notice_window_created] gs-watcher-x11.c:565 (23:28:04):     Window created: noticing activity on 0x2A00063
[_gs_watcher_notice_window_created] gs-watcher-x11.c:565 (23:28:04):     Window created: noticing activity on 0x2A00064
[_gs_watcher_notice_window_created] gs-watcher-x11.c:565 (23:28:04):     Window created: noticing activity on 0x2A00065
[_gs_watcher_notice_window_created] gs-watcher-x11.c:565 (23:28:04):     Window created: noticing activity on 0x2A00066
[_gs_watcher_notice_window_created] gs-watcher-x11.c:565 (23:28:04):     Window created: noticing activity on 0x2A00067
[_gs_watcher_notice_window_created] gs-watcher-x11.c:565 (23:28:04):     Window created: noticing activity on 0x2A00068
[_gs_watcher_notice_window_created] gs-watcher-x11.c:565 (23:28:04):     Window created: noticing activity on 0x2A00069
[_gs_watcher_notice_window_created] gs-watcher-x11.c:565 (23:28:04):     Window created: noticing activity on 0x2A0006A
[_gs_watcher_notice_window_created] gs-watcher-x11.c:565 (23:28:04):     Window created: noticing activity on 0x2A0006B
[_gs_watcher_notice_window_created] gs-watcher-x11.c:565 (23:28:04):     Window created: noticing activity on 0x2A0006C
[_gs_watcher_notice_window_created] gs-watcher-x11.c:565 (23:28:04):     Window created: noticing activity on 0x2A0006D
[_gs_watcher_notice_window_created] gs-watcher-x11.c:565 (23:28:04):     Window created: noticing activity on 0x2A00072
[_gs_watcher_notice_window_created] gs-watcher-x11.c:565 (23:28:04):     Window created: noticing activity on 0x2A00077
[_gs_watcher_notice_window_created] gs-watcher-x11.c:565 (23:28:04):     Window created: noticing activity on 0x2A00078
[notice_events_inner] gs-watcher-x11.c:355 (23:28:04):   Adding events for 0x2A00078
[_gs_watcher_notice_window_created] gs-watcher-x11.c:565 (23:28:04):     Window created: noticing activity on 0x2A0007F
[notice_events_inner] gs-watcher-x11.c:355 (23:28:04):   Adding events for 0x2A00081
[_gs_watcher_notice_window_created] gs-watcher-x11.c:565 (23:28:05):     Window created: noticing activity on 0x2A000A7
[_gs_watcher_notice_window_created] gs-watcher-x11.c:565 (23:28:05):     Window created: noticing activity on 0x2A000A8
[_gs_watcher_notice_window_created] gs-watcher-x11.c:565 (23:28:05):     Window created: noticing activity on 0x2A000AA
[_gs_watcher_notice_window_created] gs-watcher-x11.c:565 (23:28:05):     Window created: noticing activity on 0x2A000AF
[_gs_watcher_notice_window_created] gs-watcher-x11.c:565 (23:28:05):     Window created: noticing activity on 0xC0217E
[notice_events_inner] gs-watcher-x11.c:355 (23:28:05):   Adding events for 0x2A00025
[_gs_watcher_notice_window_created] gs-watcher-x11.c:565 (23:28:05):     Window created: noticing activity on 0xE01D77
[_gs_watcher_notice_window_created] gs-watcher-x11.c:565 (23:28:05):     Window created: noticing activity on 0xE01D78
[_gs_watcher_notice_window_created] gs-watcher-x11.c:565 (23:28:05):     Window created: noticing activity on 0xE01D79
[_gs_watcher_notice_window_created] gs-watcher-x11.c:565 (23:28:05):     Window created: noticing activity on 0xE01D7A
[_gs_watcher_notice_window_created] gs-watcher-x11.c:565 (23:28:05):     Window created: noticing activity on 0xE01D7B
[_gs_watcher_notice_window_created] gs-watcher-x11.c:565 (23:28:05):     Window created: noticing activity on 0xE01D7C
[_gs_watcher_notice_window_created] gs-watcher-x11.c:565 (23:28:05):     Window created: noticing activity on 0xE01D7D
[_gs_watcher_notice_window_created] gs-watcher-x11.c:565 (23:28:05):     Window created: noticing activity on 0xE01D7E
[_gs_watcher_notice_window_created] gs-watcher-x11.c:565 (23:28:05):     Window created: noticing activity on 0xE01D7F
[_gs_watcher_notice_window_created] gs-watcher-x11.c:565 (23:28:05):     Window created: noticing activity on 0x2A000B4
[_gs_watcher_notice_window_created] gs-watcher-x11.c:565 (23:28:05):     Window created: noticing activity on 0x2A000B5
[_gs_watcher_notice_window_created] gs-watcher-x11.c:565 (23:28:05):     Window created: noticing activity on 0x2A000BA
[_gs_watcher_notice_window_created] gs-watcher-x11.c:565 (23:28:05):     Window created: noticing activity on 0x2A000BB
[_gs_watcher_notice_window_created] gs-watcher-x11.c:565 (23:28:05):     Window created: noticing activity on 0x2A00148
[_gs_watcher_notice_window_created] gs-watcher-x11.c:565 (23:28:06):     Window created: noticing activity on 0xE01EA0
[_gs_watcher_notice_window_created] gs-watcher-x11.c:565 (23:28:06):     Window created: noticing activity on 0xE01EA1
[_gs_watcher_notice_window_created] gs-watcher-x11.c:565 (23:28:06):     Window created: noticing activity on 0xE01EA2
[_gs_watcher_notice_window_created] gs-watcher-x11.c:565 (23:28:06):     Window created: noticing activity on 0xE01EA3
[_gs_watcher_notice_window_created] gs-watcher-x11.c:565 (23:28:06):     Window created: noticing activity on 0xE01EA4
[_gs_watcher_notice_window_created] gs-watcher-x11.c:565 (23:28:06):     Window created: noticing activity on 0xE01EA5
[_gs_watcher_notice_window_created] gs-watcher-x11.c:565 (23:28:06):     Window created: noticing activity on 0xE01EA6
[_gs_watcher_notice_window_created] gs-watcher-x11.c:565 (23:28:34):     Window created: noticing activity on 0x10005CD
[_gs_watcher_notice_window_created] gs-watcher-x11.c:565 (23:29:04):     Window created: noticing activity on 0x26052C1
[_gs_watcher_notice_window_created] gs-watcher-x11.c:565 (23:29:04):     Window created: noticing activity on 0x26052C2
[notice_events_inner] gs-watcher-x11.c:355 (23:29:04):   Adding events for 0x26052C2


... the log-file was empty so I posted the terminal output.