Ok, it seems `dbus_g_thread_init` was not called and is required because logout applet uses D-Bus functions in a thread (but it's strange to have this bug now and not before...) This bug is now fixed on BZR¹
[1] https://bazaar.launchpad.net/~cairo-dock-team/cairo-dock-core/cairo-dock/revision/1162/src/cairo-dock.c
Ok, it seems `dbus_g_ thread_ init` was not called and is required because logout applet uses D-Bus functions in a thread (but it's strange to have this bug now and not before...)
This bug is now fixed on BZR¹
[1] https:/ /bazaar. launchpad. net/~cairo- dock-team/ cairo-dock- core/cairo- dock/revision/ 1162/src/ cairo-dock. c