#0  0x00007f2a52aac83c in  () at /usr/lib/libc.so.6
#1  0x00007f2a52a5c668 in raise () at /usr/lib/libc.so.6
#2  0x00007f2a53f6141c in KCrash::defaultCrashHandler(int) () at /usr/lib/libKF5Crash.so.5
#3  0x00007f2a52a5c710 in <signal handler called> () at /usr/lib/libc.so.6
#4  0x00007f2a52b8905c in  () at /usr/lib/libc.so.6
#5  0x00007f2a4c698a41 in  () at /usr/lib/libddcutil.so.5
#6  0x00007f2a4c698ba0 in  () at /usr/lib/libddcutil.so.5
#7  0x00007f2a4c69e27f in  () at /usr/lib/libddcutil.so.5
#8  0x00007f2a4c69e96f in  () at /usr/lib/libddcutil.so.5
#9  0x00007f2a4c66cccf in  () at /usr/lib/libddcutil.so.5
#10 0x00007f2a4c66d17c in  () at /usr/lib/libddcutil.so.5
#11 0x00007f2a4c6a75d5 in ddca_get_display_info_list2 () at /usr/lib/libddcutil.so.5
#12 0x00007f2a4c777d3a in  () at /usr/lib/qt/plugins/kf5/powerdevil/powerdevilupowerbackend.so
#13 0x00007f2a4c77962e in PowerDevilUPowerBackend::initWithBrightness(bool) () at /usr/lib/qt/plugins/kf5/powerdevil/powerdevilupowerbackend.so
#14 0x00007f2a532cff57 in  () at /usr/lib/libQt5Core.so.5
#15 0x00007f2a4c76e634 in PowerDevilUPowerBackend::brightnessSupportQueried(bool) () at /usr/lib/qt/plugins/kf5/powerdevil/powerdevilupowerbackend.so
#16 0x00007f2a532cff57 in  () at /usr/lib/libQt5Core.so.5
#17 0x00007f2a53db156a in KJob::result(KJob*, KJob::QPrivateSignal) () at /usr/lib/libKF5CoreAddons.so.5
#18 0x00007f2a53db753c in  () at /usr/lib/libKF5CoreAddons.so.5
#19 0x00007f2a532cff57 in  () at /usr/lib/libQt5Core.so.5
#20 0x00007f2a4d7237bd in  () at /usr/lib/qt/plugins/kauth/helper/kauth_helper_plugin.so
#21 0x00007f2a4d7240a1 in  () at /usr/lib/qt/plugins/kauth/helper/kauth_helper_plugin.so
#22 0x00007f2a53cf376e in  () at /usr/lib/libQt5DBus.so.5
#23 0x00007f2a532c2ab4 in QObject::event(QEvent*) () at /usr/lib/libQt5Core.so.5
#24 0x00007f2a5329b048 in QCoreApplication::notifyInternal2(QObject*, QEvent*) () at /usr/lib/libQt5Core.so.5
#25 0x00007f2a5329ffab in QCoreApplicationPrivate::sendPostedEvents(QObject*, int, QThreadData*) () at /usr/lib/libQt5Core.so.5
#26 0x00007f2a532e5fc8 in  () at /usr/lib/libQt5Core.so.5
#27 0x00007f2a51f0df69 in  () at /usr/lib/libglib-2.0.so.0
#28 0x00007f2a51f6c367 in  () at /usr/lib/libglib-2.0.so.0
#29 0x00007f2a51f0c162 in g_main_context_iteration () at /usr/lib/libglib-2.0.so.0
#30 0x00007f2a532e9e0c in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#31 0x00007f2a53299d54 in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#32 0x00007f2a5329b1f3 in QCoreApplication::exec() () at /usr/lib/libQt5Core.so.5
#33 0x0000561caf97955b in  ()
#34 0x00007f2a52a45cd0 in  () at /usr/lib/libc.so.6
#35 0x00007f2a52a45d8a in __libc_start_main () at /usr/lib/libc.so.6
#36 0x0000561caf97a045 in  ()