gnome-settings-daemon:5635): media-keys-plugin-DEBUG: Launching action for key type '53' (on device id 3)
(gnome-settings-daemon:5635): power-plugin-DEBUG: Calling method 'org.gnome.SettingsDaemon.Power.Screen.StepUp' for Power
(gnome-settings-daemon:5635): power-plugin-DEBUG: screen step up
(gnome-settings-daemon:5635): media-keys-plugin-DEBUG: Launching action for key type '53' (on device id 3)
(gnome-settings-daemon:5635): power-plugin-DEBUG: Calling method 'org.gnome.SettingsDaemon.Power.Screen.StepUp' for Power
(gnome-settings-daemon:5635): power-plugin-DEBUG: screen step up
<SWITCH TO TTY AND BACK>
(gnome-settings-daemon:5635): wacom-plugin-DEBUG: Removing device 'Power Button' from known devices list
(gnome-settings-daemon:5635): xrandr-plugin-DEBUG: here removed
[New Thread 0x7fffccddc700 (LWP 5656)]
[New Thread 0x7fffe7fff700 (LWP 5650)]

Breakpoint 1, 0x00007fffe531e450 in gsd_device_get_device_type () from /usr/lib/gnome-settings-daemon-3.0/libxrandr.so
(gdb) bt
#0  0x00007fffe531e450 in gsd_device_get_device_type () from /usr/lib/gnome-settings-daemon-3.0/libxrandr.so
#1  0x00007fffe531c28e in manager_device_removed () from /usr/lib/gnome-settings-daemon-3.0/libxrandr.so
#2  0x00007ffff63f12d5 in g_closure_invoke () from /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
#3  0x00007ffff640303c in ?? () from /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
#4  0x00007ffff640b698 in g_signal_emit_valist () from /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
#5  0x00007ffff640be4a in g_signal_emit_by_name () from /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
#6  0x00007fffdab28d21 in ?? () from /usr/lib/gnome-settings-daemon-3.0/libgsdwacom.so
#7  0x00007ffff63f12d5 in g_closure_invoke () from /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
#8  0x00007ffff640303c in ?? () from /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
#9  0x00007ffff640b698 in g_signal_emit_valist () from /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
#10 0x00007ffff640be4a in g_signal_emit_by_name () from /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
#11 0x00007ffff6a02c2f in ?? () from /usr/lib/x86_64-linux-gnu/libgdk-3.so.0
#12 0x00007ffff6a0ae62 in ?? () from /usr/lib/x86_64-linux-gnu/libgdk-3.so.0
#13 0x00007ffff6a0a8f9 in ?? () from /usr/lib/x86_64-linux-gnu/libgdk-3.so.0
#14 0x00007ffff69ddb29 in gdk_display_get_event () from /usr/lib/x86_64-linux-gnu/libgdk-3.so.0
#15 0x00007ffff6a0a572 in ?? () from /usr/lib/x86_64-linux-gnu/libgdk-3.so.0
#16 0x00007ffff611bc3d in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#17 0x00007ffff611bf20 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#18 0x00007ffff611c242 in g_main_loop_run () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#19 0x00007ffff6e8fe25 in gtk_main () from /usr/lib/x86_64-linux-gnu/libgtk-3.so.0
#20 0x00000000004036a0 in main ()
(gdb) c
Continuing.

(gnome-settings-daemon:5635): GLib-GObject-WARNING **: cannot register existing type 'GsdDevice'

(gnome-settings-daemon:5635): GLib-GObject-WARNING **: cannot add private field to invalid (non-instantiatable) type '<invalid>'

(gnome-settings-daemon:5635): GLib-CRITICAL **: g_once_init_leave: assertion 'result != 0' failed

(gnome-settings-daemon:5635): common-plugin-CRITICAL **: gsd_device_get_device_type: assertion 'GSD_IS_DEVICE (device)' failed
(gnome-settings-daemon:5635): wacom-plugin-DEBUG: Removing device 'Video Bus' from known devices list
(gnome-settings-daemon:5635): xrandr-plugin-DEBUG: here removed
[Thread 0x7fffccddc700 (LWP 5656) exited]

Breakpoint 1, 0x00007fffe531e450 in gsd_device_get_device_type () from /usr/lib/gnome-settings-daemon-3.0/libxrandr.so
(gdb) bt
#0  0x00007fffe531e450 in gsd_device_get_device_type () from /usr/lib/gnome-settings-daemon-3.0/libxrandr.so
#1  0x00007fffe531c28e in manager_device_removed () from /usr/lib/gnome-settings-daemon-3.0/libxrandr.so
#2  0x00007ffff63f12d5 in g_closure_invoke () from /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
#3  0x00007ffff640303c in ?? () from /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
#4  0x00007ffff640b698 in g_signal_emit_valist () from /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
#5  0x00007ffff640be4a in g_signal_emit_by_name () from /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
#6  0x00007fffdab28d21 in ?? () from /usr/lib/gnome-settings-daemon-3.0/libgsdwacom.so
#7  0x00007ffff63f12d5 in g_closure_invoke () from /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
#8  0x00007ffff640303c in ?? () from /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
#9  0x00007ffff640b698 in g_signal_emit_valist () from /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
#10 0x00007ffff640be4a in g_signal_emit_by_name () from /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
#11 0x00007ffff6a02c2f in ?? () from /usr/lib/x86_64-linux-gnu/libgdk-3.so.0
#12 0x00007ffff6a0ae62 in ?? () from /usr/lib/x86_64-linux-gnu/libgdk-3.so.0
#13 0x00007ffff6a0a8f9 in ?? () from /usr/lib/x86_64-linux-gnu/libgdk-3.so.0
#14 0x00007ffff69ddb29 in gdk_display_get_event () from /usr/lib/x86_64-linux-gnu/libgdk-3.so.0
#15 0x00007ffff6a0a572 in ?? () from /usr/lib/x86_64-linux-gnu/libgdk-3.so.0
#16 0x00007ffff611bc3d in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#17 0x00007ffff611bf20 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#18 0x00007ffff611c242 in g_main_loop_run () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#19 0x00007ffff6e8fe25 in gtk_main () from /usr/lib/x86_64-linux-gnu/libgtk-3.so.0
#20 0x00000000004036a0 in main ()
