Screen not blanked or screensaver activated, unlock screen does not display

Submitted by Simon Rassell

Assigned to Sean Davis @bluesabre

Link to original bug (#16809)

Description

Screen does not blank or screensaver not activated depending on settings. Original screen displayed throughout, mouse moves cursor but otherwise inactive. Keyboard inactive other than Alt Ctrl F1 to switch to terminal.

Unable to activate unlock screen.

Running on RaspberryPi. Worked fine in Xubuntu 19.10 but has not worked since upgrade to 20.04.

simon@raspberrypi05:~$ xfce4-screensaver --debug
[gs_debug_init] gs-debug.c:115 (19:01:55.130):	 Debugging enabled
[main] xfce4-screensaver.c:97 (19:01:55.131):	 Initializing xfce4-screensaver 0.1.10
[init_session_id] gs-listener-dbus.c:2186 (19:01:55.158):	 Got session-id: /org/freedesktop/login1/session/c2
[gs_listener_init] gs-listener-dbus.c:2212 (19:01:55.158):	 Acquiring logind sleep inhibitor lock
[gs_listener_x11_set_timeouts] gs-listener-x11.c:312 (19:01:55.170):	 Saver timeout updated to 300 seconds
[gs_listener_x11_acquire] gs-listener-x11.c:288 (19:01:55.412):	 ScreenSaver Registered
[lock_timer] gs-listener-x11.c:154 (19:06:55.338):	 Idle: 300s, Saver: Enabled, Saver Timeout: 300s, Lock: Enabled, Lock Timeout: 0s, Lock Timer: 0s, Lock Status: Unlocked, Fullscreen: Uninhibited
[gs_grab_grab_root] gs-grab-x11.c:347 (19:06:55.338):	 Grabbing the root window
[gs_grab_get] gs-grab-x11.c:104 (19:06:55.341):	 Grabbing devices for window=389
[gs_manager_create_windows_for_display] gs-manager.c:1178 (19:06:55.344):	 Creating 1 windows for display :0.0
[add_overlays] gs-manager.c:1016 (19:06:55.344):	 Reconfiguring monitors, adding overlays
[gs_listener_send_signal_active_changed] gs-listener-dbus.c:224 (19:06:55.344): Sending the ActiveChanged(TRUE) signal on the session bus
[xroot_filter] gs-listener-x11.c:256 (19:06:55.404):	 Activating screensaver on ScreenSaverOn
[deepsleep_idle] gs-manager.c:769 (19:06:55.633):	 Entering deep sleep, suspending jobs
[remove_overlays] gs-manager.c:1045 (19:06:57.346):	 Done reconfiguring monitors, removing overlays
[lock_timer] gs-listener-x11.c:154 (19:11:55.339):	 Idle: 600s, Saver: Enabled, Saver Timeout: 300s, Lock: Enabled, Lock Timeout: 0s, Lock Timer: 300s, Lock Status: Locked, Fullscreen: Uninhibited
[xroot_filter] gs-listener-x11.c:251 (19:14:13.684):	 ScreenSaver timer reset
[deepsleep_idle] gs-manager.c:765 (19:14:25.948):	 Exiting deep sleep
[gs_manager_request_unlock] gs-manager.c:1335 (19:14:48.020):	 Request unlock but we don't have any windows!

Version: 0.1.10