#0  0x00007feb5dff7e26 in g_type_check_instance_cast () at /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
#1  0x00007feb5e5d369c in  () at /usr/lib/gnome-shell/libgnome-shell.so
#2  0x00007feb5dfd1f9d in g_closure_invoke () at /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
#3  0x00007feb5dfe4d2e in  () at /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
#4  0x00007feb5dfed505 in g_signal_emit_valist () at /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
#5  0x00007feb5dfedf1f in g_signal_emit () at /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
#6  0x00007feb5c245723 in  () at /usr/lib/x86_64-linux-gnu/libmutter-1.so.0
#7  0x00007feb5c25d680 in meta_window_x11_new () at /usr/lib/x86_64-linux-gnu/libmutter-1.so.0
#8  0x00007feb5c252794 in  () at /usr/lib/x86_64-linux-gnu/libmutter-1.so.0
#9  0x00007feb5c252feb in  () at /usr/lib/x86_64-linux-gnu/libmutter-1.so.0
#10 0x00007feb5b4cb83f in  () at /usr/lib/x86_64-linux-gnu/libgdk-3.so.0
#11 0x00007feb5b4cbb29 in  () at /usr/lib/x86_64-linux-gnu/libgdk-3.so.0
#12 0x00007feb5b495980 in gdk_display_get_event () at /usr/lib/x86_64-linux-gnu/libgdk-3.so.0
#13 0x00007feb5b4cb8d2 in  () at /usr/lib/x86_64-linux-gnu/libgdk-3.so.0
#14 0x00007feb5dcf8f67 in g_main_context_dispatch () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#15 0x00007feb5dcf91a0 in  () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#16 0x00007feb5dcf94b2 in g_main_loop_run () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#17 0x00007feb5c23372c in meta_run () at /usr/lib/x86_64-linux-gnu/libmutter-1.so.0
#18 0x0000007f50268307 in  ()
#19 0x00007feb5bbe1421 in __libc_start_main (main=0x7f50267f10, argc=1, argv=0x7ffe9b1ca248, init=<optimized out>, fini=<optimized out>, rtld_fini=<optimized out>, stack_end=0x7ffe9b1ca238) at ../csu/libc-start.c:291
        result = <optimized out>
        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {0, -8604959779338155181, 546805548016, 140731500765760, 0, 0, 8617247421405498195, 8628085011659393875}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x7ffe9b1ca258, 0x7feb5ec22170}, data = {prev = 0x0, cleanup = 0x0, canceltype = -1692622248}}}
        not_first_call = <optimized out>
#20 0x0000007f5026841a in  ()