Dear Maintainer, I just want to add that I also run into the same problem. In addition to the error messages above I also observed the following backtrace:
#0 cc_display_config_get_panel_orientation_managed (self=0x0) at ../panels/display/cc-display-config.h:139 #1 0x00005555555d3c8c in reset_current_config (panel=0x5555565001c0) at ../panels/display/cc-display-panel.c:875 #2 0x00005555555d4ee8 in on_screen_changed (panel=0x5555565001c0) at ../panels/display/cc-display-panel.c:911 #3 on_screen_changed (panel=0x5555565001c0) at ../panels/display/cc-display-panel.c:904 #4 0x00007ffff7d67092 in g_closure_invoke () at /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0 #5 0x00007ffff7d79403 in () at /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0 #6 0x00007ffff7d7f69f in g_signal_emit_valist () at /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0 #7 0x00007ffff7d7fc0f in g_signal_emit () at /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0 #8 0x00005555555d8bbf in _cc_display_config_manager_emit_changed (self=<optimized out>) at ../panels/display/cc-display-config-manager.c:54 #9 0x00005555555d8a2f in got_current_state (object=0x555555ae9240, result=0x555556712b40, data=0x55555679ab00) at ../panels/display/cc-display-config-manager.h:29 #10 0x00007ffff7e5e2e9 in () at /usr/lib/x86_64-linux-gnu/libgio-2.0.so.0 #11 0x00007ffff7e5eddb in () at /usr/lib/x86_64-linux-gnu/libgio-2.0.so.0 #12 0x00007ffff7eb98ac in () at /usr/lib/x86_64-linux-gnu/libgio-2.0.so.0 #13 0x00007ffff7e5e2e9 in () at /usr/lib/x86_64-linux-gnu/libgio-2.0.so.0 #14 0x00007ffff7e5e329 in () at /usr/lib/x86_64-linux-gnu/libgio-2.0.so.0 #15 0x00007ffff7c75a9f in g_main_context_dispatch () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0 #16 0x00007ffff7c75e48 in () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0 #17 0x00007ffff7c75eff in g_main_context_iteration () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0 #18 0x00007ffff7e8c425 in g_application_run () at /usr/lib/x86_64-linux-gnu/libgio-2.0.so.0 #19 0x00005555555ac644 in main (argc=<optimized out>, argv=<optimized out>) at ../shell/main.c:65 Best regards, Michael
