Package: mate-power-manager
Version: 1.14.0-2
Severity: normal

Dear Maintainer,

After changing the brightness of my screen with the brightness keys on my
keyboard, mate-power-manager segfaults.

See the attached backtrace from gdb. It looks like an infinite recursion bug.
Not sure if it's a bug in mate-power-manager or GTK or something else.

Regards,
Samuel



-- System Information:
Debian Release: stretch/sid
  APT prefers testing
  APT policy: (500, 'testing')
Architecture: amd64 (x86_64)
Foreign Architectures: i386

Kernel: Linux 4.6.0-1-amd64 (SMP w/4 CPU cores)
Locale: LANG=sv_SE.UTF-8, LC_CTYPE=sv_SE.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash
Init: systemd (via /run/systemd/system)

Versions of packages mate-power-manager depends on:
ii  dbus-x11                   1.10.10-1
ii  libatk1.0-0                2.21.90-2
ii  libc6                      2.23-5
ii  libcairo-gobject2          1.14.6-1+b1
ii  libcairo2                  1.14.6-1+b1
ii  libcanberra-gtk3-0         0.30-3
ii  libcanberra0               0.30-3
ii  libdbus-1-3                1.10.10-1
ii  libdbus-glib-1-2           0.106-1
ii  libgdk-pixbuf2.0-0         2.34.0-1
ii  libglib2.0-0               2.49.6-1
ii  libgnome-keyring0          3.12.0-1+b1
ii  libgtk-3-0                 3.21.5-3
ii  libmate-desktop-2-17       1.14.1-1
ii  libmate-panel-applet-4-1   1.14.2-1
ii  libnotify4                 0.7.6-2
ii  libpango-1.0-0             1.40.2-1
ii  libpangocairo-1.0-0        1.40.2-1
ii  libstartup-notification0   0.12-4
ii  libunique-3.0-0            3.0.2-2
ii  libupower-glib3            0.99.4-3
ii  libx11-6                   2:1.6.3-1
ii  libxext6                   2:1.3.3-1
ii  libxrandr2                 2:1.5.0-1
ii  libxrender1                1:0.9.9-2
ii  mate-power-manager-common  1.14.0-2
ii  notification-daemon        3.20.0-1
ii  policykit-1                0.105-16
ii  systemd                    231-4
ii  upower                     0.99.4-3

mate-power-manager recommends no packages.

Versions of packages mate-power-manager suggests:
pn  mate-polkit  <none>

-- no debconf information
(gdb) run 
Starting program: /usr/bin/mate-power-manager 
[Thread debugging using libthread_db enabled]
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
[New Thread 0x7fffec0cf700 (LWP 3783)]
[New Thread 0x7fffeb8ce700 (LWP 3784)]
[New Thread 0x7fffea682700 (LWP 3785)]

(mate-power-manager:3779): Gdk-CRITICAL **: gdk_window_thaw_toplevel_updates: 
assertion 'window->update_and_descendants_freeze_count > 0' failed

<------------- I pressed the "brightness up" key here ----------------->
(mate-power-manager:3779): GLib-CRITICAL **: Source ID 15 was not found when 
attempting to remove it

Thread 1 "mate-power-mana" received signal SIGSEGV, Segmentation fault.
__GI_____strtod_l_internal (nptr=nptr@entry=0x7ffff5e1321d "10", 
endptr=endptr@entry=0x7fffff7ff1f0, group=group@entry=0, loc=0x7ffff36e0b60 
<_nl_C_locobj>) at strtod_l.c:481
481     strtod_l.c: No such file or directory.
(gdb) bt
#0  0x00007ffff33817b6 in __GI_____strtod_l_internal 
(nptr=nptr@entry=0x7ffff5e1321d "10", endptr=endptr@entry=0x7fffff7ff1f0, 
group=group@entry=0, loc=0x7ffff36e0b60 <_nl_C_locobj>) at strtod_l.c:481
#1  0x00007ffff33837ea in __GI___strtod_l (nptr=nptr@entry=0x7ffff5e1321d "10", 
endptr=endptr@entry=0x7fffff7ff1f0, loc=<optimized out>) at strtod_l.c:1756
#2  0x00007ffff3c73e45 in g_ascii_strtod (nptr=nptr@entry=0x7ffff5e1321d "10", 
endptr=endptr@entry=0x7fffff7ff1f0) at ././glib/gstrfuncs.c:696
#3  0x00007ffff52aa0fe in parse_size (word=word@entry=0x7ffff5e1321d "10", 
wordlen=2, pango_size=pango_size@entry=0x555556a14b80, 
size_is_absolute=size_is_absolute@entry=0x7fffff7ff23c) at 
././pango/fonts.c:1057
#4  0x00007ffff52ab7a1 in pango_font_description_from_string 
(str=str@entry=0x7ffff5e13218 "Sans 10") at ././pango/fonts.c:1120
#5  0x00007ffff5ac92d0 in gtk_style_init (style=0x555556a179b0 [GtkStyle]) at 
././gtk/deprecated/gtkstyle.c:384
#6  0x00007ffff3f4f36b in g_type_create_instance (type=<optimized out>) at 
././gobject/gtype.c:1866
#7  0x00007ffff3f3120b in g_object_new_internal 
(class=class@entry=0x555555892510, params=params@entry=0x7fffff7ff510, 
n_params=n_params@entry=1) at ././gobject/gobject.c:1783
#8  0x00007ffff3f3311e in g_object_new_valist 
(object_type=object_type@entry=93824994797664, 
first_property_name=first_property_name@entry=0x7ffff5e4966c "context", 
var_args=var_args@entry=0x7fffff7ff660) at ././gobject/gobject.c:2042
#9  0x00007ffff3f333c1 in g_object_new (object_type=93824994797664, 
first_property_name=first_property_name@entry=0x7ffff5e4966c "context") at 
././gobject/gobject.c:1626
#10 0x00007ffff5acf656 in gtk_widget_get_style (widget=0x5555559ca3d0 
[MsdMediaKeysWindow]) at ././gtk/deprecated/gtkstyle.c:4180
#11 0x000055555556a234 in  ()
#12 0x00007ffff3f2f010 in g_cclosure_marshal_VOID__OBJECTv 
(closure=0x555555792a30, return_value=<optimized out>, instance=0x5555559ca3d0, 
args=<optimized out>, marshal_data=<optimized out>, n_params=<optimized out>, 
param_types=0x555555792a60) at ././gobject/gmarshal.c:2102
#13 0x00007ffff3f2c102 in _g_closure_invoke_va 
(closure=closure@entry=0x555555792a30, return_value=return_value@entry=0x0, 
instance=instance@entry=0x5555559ca3d0, args=args@entry=0x7fffff7ffa00, 
n_params=1, param_types=0x555555792a60)
    at ././gobject/gclosure.c:867
#14 0x00007ffff3f468dd in g_signal_emit_valist (instance=0x5555559ca3d0, 
signal_id=<optimized out>, detail=0, var_args=var_args@entry=0x7fffff7ffa00) at 
././gobject/gsignal.c:3300
#15 0x00007ffff3f46fcf in g_signal_emit 
(instance=instance@entry=0x5555559ca3d0, signal_id=<optimized out>, 
detail=detail@entry=0) at ././gobject/gsignal.c:3447
#16 0x00007ffff5dc9883 in _gtk_widget_set_style 
(widget=widget@entry=0x5555559ca3d0 [MsdMediaKeysWindow], 
style=style@entry=0x555556a17720 [GtkStyle]) at ././gtk/gtkwidget.c:16622
#17 0x00007ffff5acf666 in gtk_widget_get_style (widget=0x5555559ca3d0 
[MsdMediaKeysWindow]) at ././gtk/deprecated/gtkstyle.c:4183
#18 0x000055555556a234 in  ()
#19 0x00007ffff3f2f010 in g_cclosure_marshal_VOID__OBJECTv 
(closure=0x555555792a30, return_value=<optimized out>, instance=0x5555559ca3d0, 
args=<optimized out>, marshal_data=<optimized out>, n_params=<optimized out>, 
param_types=0x555555792a60) at ././gobject/gmarshal.c:2102
#20 0x00007ffff3f2c102 in _g_closure_invoke_va 
(closure=closure@entry=0x555555792a30, return_value=return_value@entry=0x0, 
instance=instance@entry=0x5555559ca3d0, args=args@entry=0x7fffff7ffdb0, 
n_params=1, param_types=0x555555792a60)
    at ././gobject/gclosure.c:867
#21 0x00007ffff3f468dd in g_signal_emit_valist (instance=0x5555559ca3d0, 
signal_id=<optimized out>, detail=0, var_args=var_args@entry=0x7fffff7ffdb0) at 
././gobject/gsignal.c:3300
#22 0x00007ffff3f46fcf in g_signal_emit 
(instance=instance@entry=0x5555559ca3d0, signal_id=<optimized out>, 
detail=detail@entry=0) at ././gobject/gsignal.c:3447
#23 0x00007ffff5dc9883 in _gtk_widget_set_style 
(widget=widget@entry=0x5555559ca3d0 [MsdMediaKeysWindow], 
style=style@entry=0x555556a17490 [GtkStyle]) at ././gtk/gtkwidget.c:16622
#24 0x00007ffff5acf666 in gtk_widget_get_style (widget=0x5555559ca3d0 
[MsdMediaKeysWindow]) at ././gtk/deprecated/gtkstyle.c:4183
#25 0x000055555556a234 in  ()
#26 0x00007ffff3f2f010 in g_cclosure_marshal_VOID__OBJECTv 
(closure=0x555555792a30, return_value=<optimized out>, instance=0x5555559ca3d0, 
args=<optimized out>, marshal_data=<optimized out>, n_params=<optimized out>, 
param_types=0x555555792a60) at ././gobject/gmarshal.c:2102
#27 0x00007ffff3f2c102 in _g_closure_invoke_va 
(closure=closure@entry=0x555555792a30, return_value=return_value@entry=0x0, 
instance=instance@entry=0x5555559ca3d0, args=args@entry=0x7fffff800160, 
n_params=1, param_types=0x555555792a60)
    at ././gobject/gclosure.c:867
#28 0x00007ffff3f468dd in g_signal_emit_valist (instance=0x5555559ca3d0, 
signal_id=<optimized out>, detail=0, var_args=var_args@entry=0x7fffff800160) at 
././gobject/gsignal.c:3300
#29 0x00007ffff3f46fcf in g_signal_emit 
(instance=instance@entry=0x5555559ca3d0, signal_id=<optimized out>, 
detail=detail@entry=0) at ././gobject/gsignal.c:3447
#30 0x00007ffff5dc9883 in _gtk_widget_set_style 
(widget=widget@entry=0x5555559ca3d0 [MsdMediaKeysWindow], 
style=style@entry=0x555556a17200 [GtkStyle]) at ././gtk/gtkwidget.c:16622
#31 0x00007ffff5acf666 in gtk_widget_get_style (widget=0x5555559ca3d0 
[MsdMediaKeysWindow]) at ././gtk/deprecated/gtkstyle.c:4183
#32 0x000055555556a234 in  ()
#33 0x00007ffff3f2f010 in g_cclosure_marshal_VOID__OBJECTv 
(closure=0x555555792a30, return_value=<optimized out>, instance=0x5555559ca3d0, 
args=<optimized out>, marshal_data=<optimized out>, n_params=<optimized out>, 
param_types=0x555555792a60) at ././gobject/gmarshal.c:2102
#34 0x00007ffff3f2c102 in _g_closure_invoke_va 
(closure=closure@entry=0x555555792a30, return_value=return_value@entry=0x0, 
instance=instance@entry=0x5555559ca3d0, args=args@entry=0x7fffff800510, 
n_params=1, param_types=0x555555792a60)
    at ././gobject/gclosure.c:867
#35 0x00007ffff3f468dd in g_signal_emit_valist (instance=0x5555559ca3d0, 
signal_id=<optimized out>, detail=0, var_args=var_args@entry=0x7fffff800510) at 
././gobject/gsignal.c:3300
#36 0x00007ffff3f46fcf in g_signal_emit 
(instance=instance@entry=0x5555559ca3d0, signal_id=<optimized out>, 
detail=detail@entry=0) at ././gobject/gsignal.c:3447
#37 0x00007ffff5dc9883 in _gtk_widget_set_style 
(widget=widget@entry=0x5555559ca3d0 [MsdMediaKeysWindow], 
style=style@entry=0x555556a16f70 [GtkStyle]) at ././gtk/gtkwidget.c:16622
#38 0x00007ffff5acf666 in gtk_widget_get_style (widget=0x5555559ca3d0 
[MsdMediaKeysWindow]) at ././gtk/deprecated/gtkstyle.c:4183
#39 0x000055555556a234 in  ()
#40 0x00007ffff3f2f010 in g_cclosure_marshal_VOID__OBJECTv 
(closure=0x555555792a30, return_value=<optimized out>, instance=0x5555559ca3d0, 
args=<optimized out>, marshal_data=<optimized out>, n_params=<optimized out>, 
param_types=0x555555792a60) at ././gobject/gmarshal.c:2102
#41 0x00007ffff3f2c102 in _g_closure_invoke_va 
(closure=closure@entry=0x555555792a30, return_value=return_value@entry=0x0, 
instance=instance@entry=0x5555559ca3d0, args=args@entry=0x7fffff8008c0, 
n_params=1, param_types=0x555555792a60)
    at ././gobject/gclosure.c:867
#42 0x00007ffff3f468dd in g_signal_emit_valist (instance=0x5555559ca3d0, 
signal_id=<optimized out>, detail=0, var_args=var_args@entry=0x7fffff8008c0) at 
././gobject/gsignal.c:3300
#43 0x00007ffff3f46fcf in g_signal_emit 
(instance=instance@entry=0x5555559ca3d0, signal_id=<optimized out>, 
detail=detail@entry=0) at ././gobject/gsignal.c:3447
#44 0x00007ffff5dc9883 in _gtk_widget_set_style 
(widget=widget@entry=0x5555559ca3d0 [MsdMediaKeysWindow], 
style=style@entry=0x555556a16ce0 [GtkStyle]) at ././gtk/gtkwidget.c:16622
#45 0x00007ffff5acf666 in gtk_widget_get_style (widget=0x5555559ca3d0 
[MsdMediaKeysWindow]) at ././gtk/deprecated/gtkstyle.c:4183
#46 0x000055555556a234 in  ()
#47 0x00007ffff3f2f010 in g_cclosure_marshal_VOID__OBJECTv 
(closure=0x555555792a30, return_value=<optimized out>, instance=0x5555559ca3d0, 
args=<optimized out>, marshal_data=<optimized out>, n_params=<optimized out>, 
param_types=0x555555792a60) at ././gobject/gmarshal.c:2102
#48 0x00007ffff3f2c102 in _g_closure_invoke_va 
(closure=closure@entry=0x555555792a30, return_value=return_value@entry=0x0, 
instance=instance@entry=0x5555559ca3d0, args=args@entry=0x7fffff800c70, 
n_params=1, param_types=0x555555792a60)
    at ././gobject/gclosure.c:867
#49 0x00007ffff3f468dd in g_signal_emit_valist (instance=0x5555559ca3d0, 
signal_id=<optimized out>, detail=0, var_args=var_args@entry=0x7fffff800c70) at 
././gobject/gsignal.c:3300
#50 0x00007ffff3f46fcf in g_signal_emit 
(instance=instance@entry=0x5555559ca3d0, signal_id=<optimized out>, 
detail=detail@entry=0) at ././gobject/gsignal.c:3447
---Type <return> to continue, or q <return> to quit---q
Quit
(gdb) bt -50
#62122 0x000055555556a234 in  ()
#62123 0x00007ffff3f2f010 in g_cclosure_marshal_VOID__OBJECTv 
(closure=0x555555792a30, return_value=<optimized out>, instance=0x5555559ca3d0, 
args=<optimized out>, marshal_data=<optimized out>, n_params=<optimized out>, 
param_types=0x555555792a60) at ././gobject/gmarshal.c:2102
#62124 0x00007ffff3f2c102 in _g_closure_invoke_va 
(closure=closure@entry=0x555555792a30, return_value=return_value@entry=0x0, 
instance=instance@entry=0x5555559ca3d0, args=args@entry=0x7fffffffc930, 
n_params=1, param_types=0x555555792a60) at ././gobject/gclosure.c:867
#62125 0x00007ffff3f468dd in g_signal_emit_valist (instance=0x5555559ca3d0, 
signal_id=<optimized out>, detail=0, var_args=var_args@entry=0x7fffffffc930) at 
././gobject/gsignal.c:3300
#62126 0x00007ffff3f46fcf in g_signal_emit 
(instance=instance@entry=0x5555559ca3d0, signal_id=<optimized out>, 
detail=detail@entry=0) at ././gobject/gsignal.c:3447
#62127 0x00007ffff5dc9883 in _gtk_widget_set_style 
(widget=widget@entry=0x5555559ca3d0 [MsdMediaKeysWindow], 
style=style@entry=0x5555559ceae0 [GtkStyle]) at ././gtk/gtkwidget.c:16622
#62128 0x00007ffff5acf666 in gtk_widget_get_style (widget=0x5555559ca3d0 
[MsdMediaKeysWindow]) at ././gtk/deprecated/gtkstyle.c:4183
#62129 0x000055555556a234 in  ()
#62130 0x00007ffff3f2f010 in g_cclosure_marshal_VOID__OBJECTv 
(closure=0x555555792a30, return_value=<optimized out>, instance=0x5555559ca3d0, 
args=<optimized out>, marshal_data=<optimized out>, n_params=<optimized out>, 
param_types=0x555555792a60) at ././gobject/gmarshal.c:2102
#62131 0x00007ffff3f2c102 in _g_closure_invoke_va 
(closure=closure@entry=0x555555792a30, return_value=return_value@entry=0x0, 
instance=instance@entry=0x5555559ca3d0, args=args@entry=0x7fffffffcce0, 
n_params=1, param_types=0x555555792a60) at ././gobject/gclosure.c:867
#62132 0x00007ffff3f468dd in g_signal_emit_valist (instance=0x5555559ca3d0, 
signal_id=<optimized out>, detail=0, var_args=var_args@entry=0x7fffffffcce0) at 
././gobject/gsignal.c:3300
#62133 0x00007ffff3f46fcf in g_signal_emit 
(instance=instance@entry=0x5555559ca3d0, signal_id=<optimized out>, 
detail=detail@entry=0) at ././gobject/gsignal.c:3447
#62134 0x00007ffff5dc9883 in _gtk_widget_set_style 
(widget=widget@entry=0x5555559ca3d0 [MsdMediaKeysWindow], 
style=style@entry=0x5555559ce850 [GtkStyle]) at ././gtk/gtkwidget.c:16622
#62135 0x00007ffff5acf666 in gtk_widget_get_style (widget=0x5555559ca3d0 
[MsdMediaKeysWindow]) at ././gtk/deprecated/gtkstyle.c:4183
#62136 0x000055555556a234 in  ()
#62137 0x00007ffff3f2f010 in g_cclosure_marshal_VOID__OBJECTv 
(closure=0x555555792a30, return_value=<optimized out>, instance=0x5555559ca3d0, 
args=<optimized out>, marshal_data=<optimized out>, n_params=<optimized out>, 
param_types=0x555555792a60) at ././gobject/gmarshal.c:2102
#62138 0x00007ffff3f2c102 in _g_closure_invoke_va 
(closure=closure@entry=0x555555792a30, return_value=return_value@entry=0x0, 
instance=instance@entry=0x5555559ca3d0, args=args@entry=0x7fffffffd090, 
n_params=1, param_types=0x555555792a60) at ././gobject/gclosure.c:867
#62139 0x00007ffff3f468dd in g_signal_emit_valist (instance=0x5555559ca3d0, 
signal_id=<optimized out>, detail=0, var_args=var_args@entry=0x7fffffffd090) at 
././gobject/gsignal.c:3300
#62140 0x00007ffff3f46fcf in g_signal_emit 
(instance=instance@entry=0x5555559ca3d0, signal_id=<optimized out>, 
detail=detail@entry=0) at ././gobject/gsignal.c:3447
#62141 0x00007ffff5dc9883 in _gtk_widget_set_style 
(widget=widget@entry=0x5555559ca3d0 [MsdMediaKeysWindow], 
style=style@entry=0x5555559ce5c0 [GtkStyle]) at ././gtk/gtkwidget.c:16622
#62142 0x00007ffff5acf666 in gtk_widget_get_style (widget=0x5555559ca3d0 
[MsdMediaKeysWindow]) at ././gtk/deprecated/gtkstyle.c:4183
#62143 0x000055555556a234 in  ()
#62144 0x00007ffff3f2f010 in g_cclosure_marshal_VOID__OBJECTv 
(closure=0x555555792a30, return_value=<optimized out>, instance=0x5555559ca3d0, 
args=<optimized out>, marshal_data=<optimized out>, n_params=<optimized out>, 
param_types=0x555555792a60) at ././gobject/gmarshal.c:2102
#62145 0x00007ffff3f2c1b4 in _g_closure_invoke_va 
(closure=closure@entry=0x555555792a30, return_value=return_value@entry=0x0, 
instance=instance@entry=0x5555559ca3d0, args=args@entry=0x7fffffffd440, 
n_params=<optimized out>, param_types=0x555555792a60) at 
././gobject/gclosure.c:867
#62146 0x00007ffff3f468dd in g_signal_emit_valist (instance=0x5555559ca3d0, 
signal_id=<optimized out>, detail=0, var_args=var_args@entry=0x7fffffffd440) at 
././gobject/gsignal.c:3300
#62147 0x00007ffff3f46fcf in g_signal_emit 
(instance=instance@entry=0x5555559ca3d0, signal_id=<optimized out>, 
detail=detail@entry=0) at ././gobject/gsignal.c:3447
#62148 0x00007ffff5dc9883 in _gtk_widget_set_style 
(widget=widget@entry=0x5555559ca3d0 [MsdMediaKeysWindow], 
style=style@entry=0x5555559ce330 [GtkStyle]) at ././gtk/gtkwidget.c:16622
#62149 0x00007ffff5acf666 in gtk_widget_get_style (widget=0x5555559ca3d0 
[MsdMediaKeysWindow]) at ././gtk/deprecated/gtkstyle.c:4183
#62150 0x000055555556a198 in  ()
#62151 0x00007ffff5cfef24 in gtk_widget_query_size_for_orientation 
(widget=widget@entry=0x5555559ca3d0 [MsdMediaKeysWindow], 
orientation=orientation@entry=GTK_ORIENTATION_VERTICAL, 
for_size=for_size@entry=-1, minimum_size=minimum_size@entry=0x7fffffffd780, 
natural_size=natural_size@entry=0x7fffffffd784, 
minimum_baseline=minimum_baseline@entry=0x0, natural_baseline=0x0) at 
././gtk/gtksizerequest.c:219
#62152 0x00007ffff5cff0ff in gtk_widget_compute_size_for_orientation 
(widget=widget@entry=0x5555559ca3d0 [MsdMediaKeysWindow], 
orientation=orientation@entry=GTK_ORIENTATION_VERTICAL, 
for_size=for_size@entry=-1, minimum=minimum@entry=0x7fffffffd780, 
natural=natural@entry=0x7fffffffd784, 
minimum_baseline=minimum_baseline@entry=0x0, natural_baseline=0x0) at 
././gtk/gtksizerequest.c:399
#62153 0x00007ffff5cff3c6 in 
gtk_widget_get_preferred_height_and_baseline_for_width 
(widget=widget@entry=0x5555559ca3d0 [MsdMediaKeysWindow], width=width@entry=-1, 
minimum_height=minimum_height@entry=0x7fffffffd780, 
natural_height=natural_height@entry=0x7fffffffd784, 
minimum_baseline=minimum_baseline@entry=0x0, 
natural_baseline=natural_baseline@entry=0x0) at ././gtk/gtksizerequest.c:642
#62154 0x00007ffff5cff487 in _gtk_widget_get_preferred_size_and_baseline 
(widget=0x5555559ca3d0 [MsdMediaKeysWindow], minimum_size=0x7fffffffd7d0, 
natural_size=0x0, minimum_baseline=0x0, natural_baseline=0x0)
    at ././gtk/gtksizerequest.c:703
#62155 0x000055555555d887 in  ()
#62156 0x000055555555e1e5 in  ()
#62160 0x00007ffff3f46fcf in <emit signal ??? on instance 0x5555558287a0 
[GpmButton]> (instance=<optimized out>, signal_id=<optimized out>, 
detail=<optimized out>) at ././gobject/gsignal.c:3447
    #62157 0x00007ffff3f2bf85 in g_closure_invoke (closure=0x555555894950, 
return_value=return_value@entry=0x0, n_param_values=2, 
param_values=param_values@entry=0x7fffffffda20, 
invocation_hint=invocation_hint@entry=0x7fffffffd9a0)
    at ././gobject/gclosure.c:804
    #62158 0x00007ffff3f3df92 in signal_emit_unlocked_R 
(node=node@entry=0x5555558db820, detail=detail@entry=0, 
instance=instance@entry=0x5555558287a0, 
emission_return=emission_return@entry=0x0, 
instance_and_params=instance_and_params@entry=0x7fffffffda20) at 
././gobject/gsignal.c:3635
    #62159 0x00007ffff3f46bec in g_signal_emit_valist (instance=<optimized 
out>, signal_id=<optimized out>, detail=<optimized out>, 
var_args=var_args@entry=0x7fffffffdbe0) at ././gobject/gsignal.c:3391
#62161 0x0000555555561030 in  ()
#62162 0x0000555555561152 in  ()
#62163 0x00007ffff575d111 in gdk_event_apply_filters 
(xevent=xevent@entry=0x7fffffffdd70, event=event@entry=0x5555557bbaa0, 
window=window@entry=0x5555557af010 [GdkX11Window]) at 
././gdk/x11/gdkeventsource.c:79
#62164 0x00007ffff575d449 in _gdk_x11_display_queue_events 
(xevent=0x7fffffffdd70, event_source=0x5555557a28a0) at 
././gdk/x11/gdkeventsource.c:205
#62165 0x00007ffff575d449 in _gdk_x11_display_queue_events 
(display=0x5555557a10e0 [GdkX11Display]) at ././gdk/x11/gdkeventsource.c:341
#62166 0x00007ffff57246d9 in gdk_display_get_event 
(display=display@entry=0x5555557a10e0 [GdkX11Display]) at 
././gdk/gdkdisplay.c:437
#62167 0x00007ffff575d182 in gdk_event_source_dispatch (source=<optimized out>, 
callback=<optimized out>, user_data=<optimized out>) at 
././gdk/x11/gdkeventsource.c:363
#62168 0x00007ffff3c54697 in g_main_context_dispatch (context=0x5555557c4390) 
at ././glib/gmain.c:3201
#62169 0x00007ffff3c54697 in g_main_context_dispatch 
(context=context@entry=0x5555557c4390) at ././glib/gmain.c:3854
#62170 0x00007ffff3c54900 in g_main_context_iterate (context=0x5555557c4390, 
block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at 
././glib/gmain.c:3927
---Type <return> to continue, or q <return> to quit---q

(gdb) run 
Starting program: /usr/bin/mate-power-manager 
[Thread debugging using libthread_db enabled]
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
[New Thread 0x7fffec0cf700 (LWP 3783)]
[New Thread 0x7fffeb8ce700 (LWP 3784)]
[New Thread 0x7fffea682700 (LWP 3785)]

(mate-power-manager:3779): Gdk-CRITICAL **: gdk_window_thaw_toplevel_updates: 
assertion 'window->update_and_descendants_freeze_count > 0' failed

<------------- I pressed the "brightness up" key here ----------------->
(mate-power-manager:3779): GLib-CRITICAL **: Source ID 15 was not found when 
attempting to remove it

Thread 1 "mate-power-mana" received signal SIGSEGV, Segmentation fault.
__GI_____strtod_l_internal (nptr=nptr@entry=0x7ffff5e1321d "10", 
endptr=endptr@entry=0x7fffff7ff1f0, group=group@entry=0, loc=0x7ffff36e0b60 
<_nl_C_locobj>) at strtod_l.c:481
481     strtod_l.c: No such file or directory.
(gdb) bt
#0  0x00007ffff33817b6 in __GI_____strtod_l_internal 
(nptr=nptr@entry=0x7ffff5e1321d "10", endptr=endptr@entry=0x7fffff7ff1f0, 
group=group@entry=0, loc=0x7ffff36e0b60 <_nl_C_locobj>) at strtod_l.c:481
#1  0x00007ffff33837ea in __GI___strtod_l (nptr=nptr@entry=0x7ffff5e1321d "10", 
endptr=endptr@entry=0x7fffff7ff1f0, loc=<optimized out>) at strtod_l.c:1756
#2  0x00007ffff3c73e45 in g_ascii_strtod (nptr=nptr@entry=0x7ffff5e1321d "10", 
endptr=endptr@entry=0x7fffff7ff1f0) at ././glib/gstrfuncs.c:696
#3  0x00007ffff52aa0fe in parse_size (word=word@entry=0x7ffff5e1321d "10", 
wordlen=2, pango_size=pango_size@entry=0x555556a14b80, 
size_is_absolute=size_is_absolute@entry=0x7fffff7ff23c) at 
././pango/fonts.c:1057
#4  0x00007ffff52ab7a1 in pango_font_description_from_string 
(str=str@entry=0x7ffff5e13218 "Sans 10") at ././pango/fonts.c:1120
#5  0x00007ffff5ac92d0 in gtk_style_init (style=0x555556a179b0 [GtkStyle]) at 
././gtk/deprecated/gtkstyle.c:384
#6  0x00007ffff3f4f36b in g_type_create_instance (type=<optimized out>) at 
././gobject/gtype.c:1866
#7  0x00007ffff3f3120b in g_object_new_internal 
(class=class@entry=0x555555892510, params=params@entry=0x7fffff7ff510, 
n_params=n_params@entry=1) at ././gobject/gobject.c:1783
#8  0x00007ffff3f3311e in g_object_new_valist 
(object_type=object_type@entry=93824994797664, 
first_property_name=first_property_name@entry=0x7ffff5e4966c "context", 
var_args=var_args@entry=0x7fffff7ff660) at ././gobject/gobject.c:2042
#9  0x00007ffff3f333c1 in g_object_new (object_type=93824994797664, 
first_property_name=first_property_name@entry=0x7ffff5e4966c "context") at 
././gobject/gobject.c:1626
#10 0x00007ffff5acf656 in gtk_widget_get_style (widget=0x5555559ca3d0 
[MsdMediaKeysWindow]) at ././gtk/deprecated/gtkstyle.c:4180
#11 0x000055555556a234 in  ()
#12 0x00007ffff3f2f010 in g_cclosure_marshal_VOID__OBJECTv 
(closure=0x555555792a30, return_value=<optimized out>, instance=0x5555559ca3d0, 
args=<optimized out>, marshal_data=<optimized out>, n_params=<optimized out>, 
param_types=0x555555792a60) at ././gobject/gmarshal.c:2102
#13 0x00007ffff3f2c102 in _g_closure_invoke_va 
(closure=closure@entry=0x555555792a30, return_value=return_value@entry=0x0, 
instance=instance@entry=0x5555559ca3d0, args=args@entry=0x7fffff7ffa00, 
n_params=1, param_types=0x555555792a60)
    at ././gobject/gclosure.c:867
#14 0x00007ffff3f468dd in g_signal_emit_valist (instance=0x5555559ca3d0, 
signal_id=<optimized out>, detail=0, var_args=var_args@entry=0x7fffff7ffa00) at 
././gobject/gsignal.c:3300
#15 0x00007ffff3f46fcf in g_signal_emit 
(instance=instance@entry=0x5555559ca3d0, signal_id=<optimized out>, 
detail=detail@entry=0) at ././gobject/gsignal.c:3447
#16 0x00007ffff5dc9883 in _gtk_widget_set_style 
(widget=widget@entry=0x5555559ca3d0 [MsdMediaKeysWindow], 
style=style@entry=0x555556a17720 [GtkStyle]) at ././gtk/gtkwidget.c:16622
#17 0x00007ffff5acf666 in gtk_widget_get_style (widget=0x5555559ca3d0 
[MsdMediaKeysWindow]) at ././gtk/deprecated/gtkstyle.c:4183
#18 0x000055555556a234 in  ()
#19 0x00007ffff3f2f010 in g_cclosure_marshal_VOID__OBJECTv 
(closure=0x555555792a30, return_value=<optimized out>, instance=0x5555559ca3d0, 
args=<optimized out>, marshal_data=<optimized out>, n_params=<optimized out>, 
param_types=0x555555792a60) at ././gobject/gmarshal.c:2102
#20 0x00007ffff3f2c102 in _g_closure_invoke_va 
(closure=closure@entry=0x555555792a30, return_value=return_value@entry=0x0, 
instance=instance@entry=0x5555559ca3d0, args=args@entry=0x7fffff7ffdb0, 
n_params=1, param_types=0x555555792a60)
    at ././gobject/gclosure.c:867
#21 0x00007ffff3f468dd in g_signal_emit_valist (instance=0x5555559ca3d0, 
signal_id=<optimized out>, detail=0, var_args=var_args@entry=0x7fffff7ffdb0) at 
././gobject/gsignal.c:3300
#22 0x00007ffff3f46fcf in g_signal_emit 
(instance=instance@entry=0x5555559ca3d0, signal_id=<optimized out>, 
detail=detail@entry=0) at ././gobject/gsignal.c:3447
#23 0x00007ffff5dc9883 in _gtk_widget_set_style 
(widget=widget@entry=0x5555559ca3d0 [MsdMediaKeysWindow], 
style=style@entry=0x555556a17490 [GtkStyle]) at ././gtk/gtkwidget.c:16622
#24 0x00007ffff5acf666 in gtk_widget_get_style (widget=0x5555559ca3d0 
[MsdMediaKeysWindow]) at ././gtk/deprecated/gtkstyle.c:4183
#25 0x000055555556a234 in  ()
#26 0x00007ffff3f2f010 in g_cclosure_marshal_VOID__OBJECTv 
(closure=0x555555792a30, return_value=<optimized out>, instance=0x5555559ca3d0, 
args=<optimized out>, marshal_data=<optimized out>, n_params=<optimized out>, 
param_types=0x555555792a60) at ././gobject/gmarshal.c:2102
#27 0x00007ffff3f2c102 in _g_closure_invoke_va 
(closure=closure@entry=0x555555792a30, return_value=return_value@entry=0x0, 
instance=instance@entry=0x5555559ca3d0, args=args@entry=0x7fffff800160, 
n_params=1, param_types=0x555555792a60)
    at ././gobject/gclosure.c:867
#28 0x00007ffff3f468dd in g_signal_emit_valist (instance=0x5555559ca3d0, 
signal_id=<optimized out>, detail=0, var_args=var_args@entry=0x7fffff800160) at 
././gobject/gsignal.c:3300
#29 0x00007ffff3f46fcf in g_signal_emit 
(instance=instance@entry=0x5555559ca3d0, signal_id=<optimized out>, 
detail=detail@entry=0) at ././gobject/gsignal.c:3447
#30 0x00007ffff5dc9883 in _gtk_widget_set_style 
(widget=widget@entry=0x5555559ca3d0 [MsdMediaKeysWindow], 
style=style@entry=0x555556a17200 [GtkStyle]) at ././gtk/gtkwidget.c:16622
#31 0x00007ffff5acf666 in gtk_widget_get_style (widget=0x5555559ca3d0 
[MsdMediaKeysWindow]) at ././gtk/deprecated/gtkstyle.c:4183
#32 0x000055555556a234 in  ()
#33 0x00007ffff3f2f010 in g_cclosure_marshal_VOID__OBJECTv 
(closure=0x555555792a30, return_value=<optimized out>, instance=0x5555559ca3d0, 
args=<optimized out>, marshal_data=<optimized out>, n_params=<optimized out>, 
param_types=0x555555792a60) at ././gobject/gmarshal.c:2102
#34 0x00007ffff3f2c102 in _g_closure_invoke_va 
(closure=closure@entry=0x555555792a30, return_value=return_value@entry=0x0, 
instance=instance@entry=0x5555559ca3d0, args=args@entry=0x7fffff800510, 
n_params=1, param_types=0x555555792a60)
    at ././gobject/gclosure.c:867
#35 0x00007ffff3f468dd in g_signal_emit_valist (instance=0x5555559ca3d0, 
signal_id=<optimized out>, detail=0, var_args=var_args@entry=0x7fffff800510) at 
././gobject/gsignal.c:3300
#36 0x00007ffff3f46fcf in g_signal_emit 
(instance=instance@entry=0x5555559ca3d0, signal_id=<optimized out>, 
detail=detail@entry=0) at ././gobject/gsignal.c:3447
#37 0x00007ffff5dc9883 in _gtk_widget_set_style 
(widget=widget@entry=0x5555559ca3d0 [MsdMediaKeysWindow], 
style=style@entry=0x555556a16f70 [GtkStyle]) at ././gtk/gtkwidget.c:16622
#38 0x00007ffff5acf666 in gtk_widget_get_style (widget=0x5555559ca3d0 
[MsdMediaKeysWindow]) at ././gtk/deprecated/gtkstyle.c:4183
#39 0x000055555556a234 in  ()
#40 0x00007ffff3f2f010 in g_cclosure_marshal_VOID__OBJECTv 
(closure=0x555555792a30, return_value=<optimized out>, instance=0x5555559ca3d0, 
args=<optimized out>, marshal_data=<optimized out>, n_params=<optimized out>, 
param_types=0x555555792a60) at ././gobject/gmarshal.c:2102
#41 0x00007ffff3f2c102 in _g_closure_invoke_va 
(closure=closure@entry=0x555555792a30, return_value=return_value@entry=0x0, 
instance=instance@entry=0x5555559ca3d0, args=args@entry=0x7fffff8008c0, 
n_params=1, param_types=0x555555792a60)
    at ././gobject/gclosure.c:867
#42 0x00007ffff3f468dd in g_signal_emit_valist (instance=0x5555559ca3d0, 
signal_id=<optimized out>, detail=0, var_args=var_args@entry=0x7fffff8008c0) at 
././gobject/gsignal.c:3300
#43 0x00007ffff3f46fcf in g_signal_emit 
(instance=instance@entry=0x5555559ca3d0, signal_id=<optimized out>, 
detail=detail@entry=0) at ././gobject/gsignal.c:3447
#44 0x00007ffff5dc9883 in _gtk_widget_set_style 
(widget=widget@entry=0x5555559ca3d0 [MsdMediaKeysWindow], 
style=style@entry=0x555556a16ce0 [GtkStyle]) at ././gtk/gtkwidget.c:16622
#45 0x00007ffff5acf666 in gtk_widget_get_style (widget=0x5555559ca3d0 
[MsdMediaKeysWindow]) at ././gtk/deprecated/gtkstyle.c:4183
#46 0x000055555556a234 in  ()
#47 0x00007ffff3f2f010 in g_cclosure_marshal_VOID__OBJECTv 
(closure=0x555555792a30, return_value=<optimized out>, instance=0x5555559ca3d0, 
args=<optimized out>, marshal_data=<optimized out>, n_params=<optimized out>, 
param_types=0x555555792a60) at ././gobject/gmarshal.c:2102
#48 0x00007ffff3f2c102 in _g_closure_invoke_va 
(closure=closure@entry=0x555555792a30, return_value=return_value@entry=0x0, 
instance=instance@entry=0x5555559ca3d0, args=args@entry=0x7fffff800c70, 
n_params=1, param_types=0x555555792a60)
    at ././gobject/gclosure.c:867
#49 0x00007ffff3f468dd in g_signal_emit_valist (instance=0x5555559ca3d0, 
signal_id=<optimized out>, detail=0, var_args=var_args@entry=0x7fffff800c70) at 
././gobject/gsignal.c:3300
#50 0x00007ffff3f46fcf in g_signal_emit 
(instance=instance@entry=0x5555559ca3d0, signal_id=<optimized out>, 
detail=detail@entry=0) at ././gobject/gsignal.c:3447
---Type <return> to continue, or q <return> to quit---q
Quit
(gdb) bt -50
#62122 0x000055555556a234 in  ()
#62123 0x00007ffff3f2f010 in g_cclosure_marshal_VOID__OBJECTv 
(closure=0x555555792a30, return_value=<optimized out>, instance=0x5555559ca3d0, 
args=<optimized out>, marshal_data=<optimized out>, n_params=<optimized out>, 
param_types=0x555555792a60) at ././gobject/gmarshal.c:2102
#62124 0x00007ffff3f2c102 in _g_closure_invoke_va 
(closure=closure@entry=0x555555792a30, return_value=return_value@entry=0x0, 
instance=instance@entry=0x5555559ca3d0, args=args@entry=0x7fffffffc930, 
n_params=1, param_types=0x555555792a60) at ././gobject/gclosure.c:867
#62125 0x00007ffff3f468dd in g_signal_emit_valist (instance=0x5555559ca3d0, 
signal_id=<optimized out>, detail=0, var_args=var_args@entry=0x7fffffffc930) at 
././gobject/gsignal.c:3300
#62126 0x00007ffff3f46fcf in g_signal_emit 
(instance=instance@entry=0x5555559ca3d0, signal_id=<optimized out>, 
detail=detail@entry=0) at ././gobject/gsignal.c:3447
#62127 0x00007ffff5dc9883 in _gtk_widget_set_style 
(widget=widget@entry=0x5555559ca3d0 [MsdMediaKeysWindow], 
style=style@entry=0x5555559ceae0 [GtkStyle]) at ././gtk/gtkwidget.c:16622
#62128 0x00007ffff5acf666 in gtk_widget_get_style (widget=0x5555559ca3d0 
[MsdMediaKeysWindow]) at ././gtk/deprecated/gtkstyle.c:4183
#62129 0x000055555556a234 in  ()
#62130 0x00007ffff3f2f010 in g_cclosure_marshal_VOID__OBJECTv 
(closure=0x555555792a30, return_value=<optimized out>, instance=0x5555559ca3d0, 
args=<optimized out>, marshal_data=<optimized out>, n_params=<optimized out>, 
param_types=0x555555792a60) at ././gobject/gmarshal.c:2102
#62131 0x00007ffff3f2c102 in _g_closure_invoke_va 
(closure=closure@entry=0x555555792a30, return_value=return_value@entry=0x0, 
instance=instance@entry=0x5555559ca3d0, args=args@entry=0x7fffffffcce0, 
n_params=1, param_types=0x555555792a60) at ././gobject/gclosure.c:867
#62132 0x00007ffff3f468dd in g_signal_emit_valist (instance=0x5555559ca3d0, 
signal_id=<optimized out>, detail=0, var_args=var_args@entry=0x7fffffffcce0) at 
././gobject/gsignal.c:3300
#62133 0x00007ffff3f46fcf in g_signal_emit 
(instance=instance@entry=0x5555559ca3d0, signal_id=<optimized out>, 
detail=detail@entry=0) at ././gobject/gsignal.c:3447
#62134 0x00007ffff5dc9883 in _gtk_widget_set_style 
(widget=widget@entry=0x5555559ca3d0 [MsdMediaKeysWindow], 
style=style@entry=0x5555559ce850 [GtkStyle]) at ././gtk/gtkwidget.c:16622
#62135 0x00007ffff5acf666 in gtk_widget_get_style (widget=0x5555559ca3d0 
[MsdMediaKeysWindow]) at ././gtk/deprecated/gtkstyle.c:4183
#62136 0x000055555556a234 in  ()
#62137 0x00007ffff3f2f010 in g_cclosure_marshal_VOID__OBJECTv 
(closure=0x555555792a30, return_value=<optimized out>, instance=0x5555559ca3d0, 
args=<optimized out>, marshal_data=<optimized out>, n_params=<optimized out>, 
param_types=0x555555792a60) at ././gobject/gmarshal.c:2102
#62138 0x00007ffff3f2c102 in _g_closure_invoke_va 
(closure=closure@entry=0x555555792a30, return_value=return_value@entry=0x0, 
instance=instance@entry=0x5555559ca3d0, args=args@entry=0x7fffffffd090, 
n_params=1, param_types=0x555555792a60) at ././gobject/gclosure.c:867
#62139 0x00007ffff3f468dd in g_signal_emit_valist (instance=0x5555559ca3d0, 
signal_id=<optimized out>, detail=0, var_args=var_args@entry=0x7fffffffd090) at 
././gobject/gsignal.c:3300
#62140 0x00007ffff3f46fcf in g_signal_emit 
(instance=instance@entry=0x5555559ca3d0, signal_id=<optimized out>, 
detail=detail@entry=0) at ././gobject/gsignal.c:3447
#62141 0x00007ffff5dc9883 in _gtk_widget_set_style 
(widget=widget@entry=0x5555559ca3d0 [MsdMediaKeysWindow], 
style=style@entry=0x5555559ce5c0 [GtkStyle]) at ././gtk/gtkwidget.c:16622
#62142 0x00007ffff5acf666 in gtk_widget_get_style (widget=0x5555559ca3d0 
[MsdMediaKeysWindow]) at ././gtk/deprecated/gtkstyle.c:4183
#62143 0x000055555556a234 in  ()
#62144 0x00007ffff3f2f010 in g_cclosure_marshal_VOID__OBJECTv 
(closure=0x555555792a30, return_value=<optimized out>, instance=0x5555559ca3d0, 
args=<optimized out>, marshal_data=<optimized out>, n_params=<optimized out>, 
param_types=0x555555792a60) at ././gobject/gmarshal.c:2102
#62145 0x00007ffff3f2c1b4 in _g_closure_invoke_va 
(closure=closure@entry=0x555555792a30, return_value=return_value@entry=0x0, 
instance=instance@entry=0x5555559ca3d0, args=args@entry=0x7fffffffd440, 
n_params=<optimized out>, param_types=0x555555792a60) at 
././gobject/gclosure.c:867
#62146 0x00007ffff3f468dd in g_signal_emit_valist (instance=0x5555559ca3d0, 
signal_id=<optimized out>, detail=0, var_args=var_args@entry=0x7fffffffd440) at 
././gobject/gsignal.c:3300
#62147 0x00007ffff3f46fcf in g_signal_emit 
(instance=instance@entry=0x5555559ca3d0, signal_id=<optimized out>, 
detail=detail@entry=0) at ././gobject/gsignal.c:3447
#62148 0x00007ffff5dc9883 in _gtk_widget_set_style 
(widget=widget@entry=0x5555559ca3d0 [MsdMediaKeysWindow], 
style=style@entry=0x5555559ce330 [GtkStyle]) at ././gtk/gtkwidget.c:16622
#62149 0x00007ffff5acf666 in gtk_widget_get_style (widget=0x5555559ca3d0 
[MsdMediaKeysWindow]) at ././gtk/deprecated/gtkstyle.c:4183
#62150 0x000055555556a198 in  ()
#62151 0x00007ffff5cfef24 in gtk_widget_query_size_for_orientation 
(widget=widget@entry=0x5555559ca3d0 [MsdMediaKeysWindow], 
orientation=orientation@entry=GTK_ORIENTATION_VERTICAL, 
for_size=for_size@entry=-1, minimum_size=minimum_size@entry=0x7fffffffd780, 
natural_size=natural_size@entry=0x7fffffffd784, 
minimum_baseline=minimum_baseline@entry=0x0, natural_baseline=0x0) at 
././gtk/gtksizerequest.c:219
#62152 0x00007ffff5cff0ff in gtk_widget_compute_size_for_orientation 
(widget=widget@entry=0x5555559ca3d0 [MsdMediaKeysWindow], 
orientation=orientation@entry=GTK_ORIENTATION_VERTICAL, 
for_size=for_size@entry=-1, minimum=minimum@entry=0x7fffffffd780, 
natural=natural@entry=0x7fffffffd784, 
minimum_baseline=minimum_baseline@entry=0x0, natural_baseline=0x0) at 
././gtk/gtksizerequest.c:399
#62153 0x00007ffff5cff3c6 in 
gtk_widget_get_preferred_height_and_baseline_for_width 
(widget=widget@entry=0x5555559ca3d0 [MsdMediaKeysWindow], width=width@entry=-1, 
minimum_height=minimum_height@entry=0x7fffffffd780, 
natural_height=natural_height@entry=0x7fffffffd784, 
minimum_baseline=minimum_baseline@entry=0x0, 
natural_baseline=natural_baseline@entry=0x0) at ././gtk/gtksizerequest.c:642
#62154 0x00007ffff5cff487 in _gtk_widget_get_preferred_size_and_baseline 
(widget=0x5555559ca3d0 [MsdMediaKeysWindow], minimum_size=0x7fffffffd7d0, 
natural_size=0x0, minimum_baseline=0x0, natural_baseline=0x0)
    at ././gtk/gtksizerequest.c:703
#62155 0x000055555555d887 in  ()
#62156 0x000055555555e1e5 in  ()
#62160 0x00007ffff3f46fcf in <emit signal ??? on instance 0x5555558287a0 
[GpmButton]> (instance=<optimized out>, signal_id=<optimized out>, 
detail=<optimized out>) at ././gobject/gsignal.c:3447
    #62157 0x00007ffff3f2bf85 in g_closure_invoke (closure=0x555555894950, 
return_value=return_value@entry=0x0, n_param_values=2, 
param_values=param_values@entry=0x7fffffffda20, 
invocation_hint=invocation_hint@entry=0x7fffffffd9a0)
    at ././gobject/gclosure.c:804
    #62158 0x00007ffff3f3df92 in signal_emit_unlocked_R 
(node=node@entry=0x5555558db820, detail=detail@entry=0, 
instance=instance@entry=0x5555558287a0, 
emission_return=emission_return@entry=0x0, 
instance_and_params=instance_and_params@entry=0x7fffffffda20) at 
././gobject/gsignal.c:3635
    #62159 0x00007ffff3f46bec in g_signal_emit_valist (instance=<optimized 
out>, signal_id=<optimized out>, detail=<optimized out>, 
var_args=var_args@entry=0x7fffffffdbe0) at ././gobject/gsignal.c:3391
#62161 0x0000555555561030 in  ()
#62162 0x0000555555561152 in  ()
#62163 0x00007ffff575d111 in gdk_event_apply_filters 
(xevent=xevent@entry=0x7fffffffdd70, event=event@entry=0x5555557bbaa0, 
window=window@entry=0x5555557af010 [GdkX11Window]) at 
././gdk/x11/gdkeventsource.c:79
#62164 0x00007ffff575d449 in _gdk_x11_display_queue_events 
(xevent=0x7fffffffdd70, event_source=0x5555557a28a0) at 
././gdk/x11/gdkeventsource.c:205
#62165 0x00007ffff575d449 in _gdk_x11_display_queue_events 
(display=0x5555557a10e0 [GdkX11Display]) at ././gdk/x11/gdkeventsource.c:341
#62166 0x00007ffff57246d9 in gdk_display_get_event 
(display=display@entry=0x5555557a10e0 [GdkX11Display]) at 
././gdk/gdkdisplay.c:437
#62167 0x00007ffff575d182 in gdk_event_source_dispatch (source=<optimized out>, 
callback=<optimized out>, user_data=<optimized out>) at 
././gdk/x11/gdkeventsource.c:363
#62168 0x00007ffff3c54697 in g_main_context_dispatch (context=0x5555557c4390) 
at ././glib/gmain.c:3201
#62169 0x00007ffff3c54697 in g_main_context_dispatch 
(context=context@entry=0x5555557c4390) at ././glib/gmain.c:3854
#62170 0x00007ffff3c54900 in g_main_context_iterate (context=0x5555557c4390, 
block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at 
././glib/gmain.c:3927
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