$ gdb systemsettings5
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Reading symbols from systemsettings5...Reading symbols from /usr/lib/debug/.build-id/85/88c37fb39e1bf04b8f15c06098bfd38d4336a6.debug...done.
done.
(gdb) r
Starting program: /usr/bin/systemsettings5
[Thread debugging using libthread_db enabled]
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
[New Thread 0x7f42fc5bc700 (LWP 12931)]
[New Thread 0x7f42f3df5700 (LWP 12932)]
[New Thread 0x7f42eaa02700 (LWP 12934)]

Thread 1 "systemsettings5" received signal SIGSEGV, Segmentation fault.
QObject::property (this=0x0, name=name@entry=0x7f42f037cd00 "implicitWidth") at kernel/qobject.cpp:3902
3902    kernel/qobject.cpp: No such file or directory.
(gdb) b
Breakpoint 1 at 0x7f430c1a428a: file ../../include/QtCore/../../src/corelib/tools/qscopedpointer.h, line 141.
(gdb)