StacktraceTop: g_assertion_message () from /tmp/apport_sandbox_PBPbvQ/lib/x86_64-linux-gnu/libglib-2.0.so.0 g_assertion_message_expr () from /tmp/apport_sandbox_PBPbvQ/lib/x86_64-linux-gnu/libglib-2.0.so.0 gpm_kbd_backlight_on_dbus_signal (proxy=<optimized out>, sender_name=<optimized out>, signal_name=0x5630fa8817f0 "BrightnessChangedWithSource", parameters=0x5630fa9280a0, user_data=<optimized out>) at gpm-kbd-backlight.c:329 ffi_call_unix64 () from /tmp/apport_sandbox_PBPbvQ/usr/lib/x86_64-linux-gnu/libffi.so.6 ffi_call () from /tmp/apport_sandbox_PBPbvQ/usr/lib/x86_64-linux-gnu/libffi.so.6
StacktraceTop: message () from /tmp/apport_ sandbox_ PBPbvQ/ lib/x86_ 64-linux- gnu/libglib- 2.0.so. 0 message_ expr () from /tmp/apport_ sandbox_ PBPbvQ/ lib/x86_ 64-linux- gnu/libglib- 2.0.so. 0 backlight_ on_dbus_ signal (proxy=<optimized out>, sender_ name=<optimized out>, signal_ name=0x5630fa88 17f0 "BrightnessChan gedWithSource" , parameters= 0x5630fa9280a0, user_data= <optimized out>) at gpm-kbd- backlight. c:329 sandbox_ PBPbvQ/ usr/lib/ x86_64- linux-gnu/ libffi. so.6 sandbox_ PBPbvQ/ usr/lib/ x86_64- linux-gnu/ libffi. so.6
g_assertion_
g_assertion_
gpm_kbd_
ffi_call_unix64 () from /tmp/apport_
ffi_call () from /tmp/apport_