Since my last reboot (and I assume since my last kernel update), ubuntu hangs after I return from a locked screen. I am running Ubuntu 17.04 with 4.10.0-32-generic and an Radeon RX 480 (without radeons driver). The logs contain first
Aug 25 16:35:31 reichelt-desktop gnome-session[2506]: gnome-session-binary[2506]: GLib-GIO-CRITICAL: g_dbus_connection_call_internal: assertion 'object_path != NULL && g_variant_is_object_path (object_path)' failed
Aug 25 16:35:31 reichelt-desktop gnome-session-binary[2506]: GLib-GIO-CRITICAL: g_dbus_connection_call_internal: assertion 'object_path != NULL && g_variant_is_object_path (object_path)' failed
then a lot of failed to send message like
Aug 25 16:40:43 reichelt-desktop kernel: [22191.381820] failed to send pre message 146 ret is 0
Aug 25 16:40:44 reichelt-desktop kernel: [22191.799677]
Aug 25 16:40:44 reichelt-desktop kernel: [22191.799677] failed to send message 146 ret is 0
Aug 25 16:40:44 reichelt-desktop kernel: [22192.209455]
Aug 25 16:40:44 reichelt-desktop kernel: [22192.209455] failed to send pre message 5d ret is 0
Aug 25 16:40:44 reichelt-desktop kernel: [22192.619189]
Aug 25 16:40:44 reichelt-desktop kernel: [22192.619189] failed to send message 5d ret is 0
Aug 25 16:40:45 reichelt-desktop kernel: [22193.029952]
Aug 25 16:40:45 reichelt-desktop kernel: [22193.029952] failed to send pre message 148 ret is 0
Aug 25 16:40:45 reichelt-desktop kernel: [22193.440793]
Aug 25 16:40:45 reichelt-desktop kernel: [22193.440793] failed to send message 148 ret is 0
and then finally what seems like a reconstruction of some UI stuff:
Aug 25 16:40:46 reichelt-desktop kernel: [22194.262002]
Aug 25 16:40:46 reichelt-desktop kernel: [22194.262002] failed to send pre message 145 ret is 0
Aug 25 16:40:46 reichelt-desktop kernel: [22194.672385]
Aug 25 16:40:46 reichelt-desktop kernel: [22194.672385] failed to send message 145 ret is 0
Aug 25 16:40:47 reichelt-desktop kernel: [22195.493820]
Aug 25 16:40:47 reichelt-desktop kernel: [22195.493820] failed to send pre message 146 ret is 0
Aug 25 16:40:48 reichelt-desktop kernel: [22195.904314]
Aug 25 16:40:48 reichelt-desktop kernel: [22195.904314] failed to send message 146 ret is 0
Aug 25 16:40:48 reichelt-desktop unity-settings-[2480]: failed to turn the kbd backlight off: GDBus.Error:org.freedesktop.DBus.Error.UnknownMethod: Keine derartige Schnittstelle »org.freedesktop.UPower.KbdBacklight« des Objekts im Pfad /org/freedesktop/UPower/KbdBacklight
Aug 25 16:40:49 reichelt-desktop avahi-daemon[977]: Registering new address record for 2a02:810a:12c0:4e6c:cdd3:ea94:b14e:271e on enp2s0.*.
Aug 25 16:40:49 reichelt-desktop avahi-daemon[977]: Withdrawing address record for 2a02:810a:12c0:4e6c:cdd3:ea94:b14e:271e on enp2s0.
Aug 25 16:40:50 reichelt-desktop gnome-session[2506]: gnome-session-binary[2506]: GLib-GIO-CRITICAL: g_dbus_connection_call_internal: assertion 'object_path != NULL && g_variant_is_object_path (object_path)' failed
Aug 25 16:40:50 reichelt-desktop gnome-session-binary[2506]: GLib-GIO-CRITICAL: g_dbus_connection_call_internal: assertion 'object_path != NULL && g_variant_is_object_path (object_path)' failed
Aug 25 16:40:50 reichelt-desktop unity-panel-ser[2771]: menus_destroyed: assertion 'IS_WINDOW_MENU(wm)' failed
Aug 25 16:40:50 reichelt-desktop systemd[2163]: Starting Backing Service for the Unity Panel in Lockscreen mode...
Aug 25 16:40:50 reichelt-desktop compiz[2749]: WARN 2017-08-25 16:40:50 unity.glib.dbus.proxy GLibDBusProxy.cpp:487 Calling method "EmitEvent" on object path: "/com/ubuntu/Upstart" failed: GDBus.Error:org.freedesktop.DBus.Error.ServiceUnknown: The name com.canonical.Unity.Test.Upstart was not provided by any .service files
Aug 25 16:40:50 reichelt-desktop systemd[2163]: Started Backing Service for the Unity Panel in Lockscreen mode.
Aug 25 16:40:50 reichelt-desktop systemd[2163]: Reached target A target that, when running, represents the screen being locked.
Aug 25 16:40:51 reichelt-desktop compiz[2749]: Warning: Fehler beim Lesen von Daten für Kalender: Privat2. Fehlercode: READ_FAILED. Beschreibung:
Aug 25 16:40:58 reichelt-desktop compiz: pam_ecryptfs: seteuid error
Aug 25 16:40:59 reichelt-desktop unity-panel-ser[2771]: menus_destroyed: assertion 'IS_WINDOW_MENU(wm)' failed
Aug 25 16:40:59 reichelt-desktop unity-panel-ser[2771]: menus_destroyed: assertion 'IS_WINDOW_MENU(wm)' failed
Aug 25 16:40:59 reichelt-desktop systemd[2163]: Stopped target A target that, when running, represents the screen being locked.
Aug 25 16:40:59 reichelt-desktop systemd[2163]: Stopping Backing Service for the Unity Panel in Lockscreen mode...
Aug 25 16:40:59 reichelt-desktop compiz[2749]: WARN 2017-08-25 16:40:59 unity.glib.dbus.proxy GLibDBusProxy.cpp:487 Calling method "EmitEvent" on object path: "/com/ubuntu/Upstart" failed: GDBus.Error:org.freedesktop.DBus.Error.ServiceUnknown: The name com.canonical.Unity.Test.Upstart was not provided by any .service files
Seems like a similar bug occured in How do I reduce delay before locking after pressing lock button? but there it was the other way round: the lag appears when logging, not when unlocking.
It is really time-consuming if I have to wait 5 minutes before I can unlock the screen. Does this occur to anyone else? Is there a workaround for this?