Comment #11: Corrupt (bug 2015857)

Comment #13: Missing some debug symbols (library unloaded?!) but getting closer:

#10 0x00007f9a42e7e71f in  () at /lib/x86_64-linux-gnu/libX11.so.6
#11 0x00007f9a434e4b50 in  () at /lib/x86_64-linux-gnu/libmutter-12.so.0
#12 0x00007f9a434e4dc4 in  () at /lib/x86_64-linux-gnu/libmutter-12.so.0
#13 0x00007f9a4347587f in  () at /lib/x86_64-linux-gnu/libmutter-12.so.0
#14 0x00007f9a43475a19 in  () at /lib/x86_64-linux-gnu/libmutter-12.so.0
#15 0x00007f9a43478a3f in  () at /lib/x86_64-linux-gnu/libmutter-12.so.0
#16 0x00007f9a434e40e1 in  () at /lib/x86_64-linux-gnu/libmutter-12.so.0
#17 0x00007f9a43713ebb in clutter_seat_handle_event_post ()
    at /usr/lib/x86_64-linux-gnu/mutter-12/libmutter-clutter-12.so.0
#18 0x00007f9a43707183 in _clutter_process_event ()
    at /usr/lib/x86_64-linux-gnu/mutter-12/libmutter-clutter-12.so.0

Comment #14: SUCCESS!

#11 0x00007fed52e7e67f in XSync () at /lib/x86_64-linux-gnu/libX11.so.6
#12 0x00007fed52e7e71f in  () at /lib/x86_64-linux-gnu/libX11.so.6
#13 0x00007fed534e4b50 in change_property
    (settings=<optimised out>, device=0x558b3a712470, property=<optimised out>, type=156, format=32, data=0x7ffe3f8a1b74, nitems=1)
    at ../src/backends/x11/meta-input-settings-x11.c:184
#14 0x00007fed534e4dc4 in meta_input_settings_x11_set_speed
    (settings=settings@entry=0x558b3a7073e0, device=0x558b3a712470, speed=speed@entry=0) at ../src/backends/x11/meta-input-settings-x11.c:249
#15 0x00007fed5347587f in settings_device_set_double_setting
    (value=0, func=0x7fed534e4d50 <meta_input_settings_x11_set_speed>, device=<optimised out>, input_settings=0x558b3a7073e0)
    at ../src/backends/meta-input-settings.c:231
#16 settings_set_double_setting
    (value=0, func=0x7fed534e4d50 <meta_input_settings_x11_set_speed>, unset_capabilities=CLUTTER_INPUT_CAPABILITY_TOUCHPAD, capabilities=CLUTTER_INPUT_CAPABILITY_POINTER, input_settings=0x558b3a7073e0)
    at ../src/backends/meta-input-settings.c:248
#17 update_device_speed (input_settings=0x558b3a7073e0, device=<optimised out>)
    at ../src/backends/meta-input-settings.c:511
#18 0x00007fed53475a19 in apply_device_settings
    (input_settings=0x558b3a7073e0, device=0x0)
    at ../src/backends/meta-input-settings.c:1483
#19 0x00007fed53478a3f in meta_input_settings_remove_device
    (input_settings=0x558b3a7073e0, device=0x558b3a6f8140)
    at ../src/backends/meta-input-settings.c:1629
--Type <RET> for more, q to quit, c to continue without paging--
#20 0x00007fed534e40e1 in meta_seat_x11_handle_event_post
    (event=0x558b3d639db0, seat=0x558b3a6dbc70)
    at ../src/backends/x11/meta-seat-x11.c:836
#21 meta_seat_x11_handle_event_post (seat=0x558b3a6dbc70, event=0x558b3d639db0)
    at ../src/backends/x11/meta-seat-x11.c:810
#22 0x00007fed53713ebb in clutter_seat_handle_event_post
    (seat=0x558b3a6dbc70, event=0x558b3d639db0)
    at ../clutter/clutter/clutter-seat.c:598
#23 0x00007fed53707183 in _clutter_process_event (event=0x558b3d639db0)
    at ../clutter/clutter/clutter-main.c:919
#24 0x00007fed5371aa20 in _clutter_stage_process_queued_events
    (stage=0x558b3a6e8690) at ../clutter/clutter/clutter-stage.c:757
#25 0x00007fed53706f69 in clutter_do_event (event=event@entry=0x558b3d5860a0)
    at ../clutter/clutter/clutter-main.c:840