512568 – Spectacle crash with specific monitor layouts

Bug 512568 - Spectacle crash with specific monitor layouts

Summary: Spectacle crash with specific monitor layouts

Status:	REPORTED

Alias:	None

Product:	Spectacle
Classification:	Applications
Component:	General (other bugs)
Version First Reported In:	6.5.3
Platform:	Fedora RPMs Linux

Importance:	NOR crash
Target Milestone:	---
Assignee:	Noah Davis

URL:
Keywords:	drkonqi

Depends on:
Blocks:

Reported:	2025-11-24 20:53 UTC by Al
Modified:	2025-11-24 20:53 UTC (History)
CC List:	1 user (show)

See Also:
Latest Commit:
Version Fixed/Implemented In:
Sentry Crash Report:

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Description Al 2025-11-24 20:53:56 UTC

Application: spectacle (6.5.3)

ApplicationNotResponding [ANR]: false
Qt Version: 6.10.1
Frameworks Version: 6.20.0
Operating System: Linux 6.17.8-300.fc43.x86_64 x86_64
Windowing System: Wayland
Distribution: "Fedora Linux 43 (KDE Plasma Desktop Edition)"
DrKonqi: 6.5.3 [CoredumpBackend]

-- Information about the crash:
Spectacle crashes when attempting to launch via GUI or PrtScn key.

Possibly related to https://bugs.kde.org/show_bug.cgi?id=512012

I have 4 monitors attached, but typically only have 2 enabled. 
The 2 monitor setup is when crash has now started to occur.
It does not crash if I enable a third monitor.
It will crash again if third monitor disabled again.

Attempting to launch via Konsole:
terminate called after throwing an instance of 'cv::Exception'
  what():  OpenCV(4.11.0) /builddir/build/BUILD/opencv-4.11.0-build/opencv-4.11.0/modules/imgproc/src/resize.cpp:4211: error: (-215:Assertion failed) inv_scale_x > 0 in function 'resize'

KCrash: Application 'spectacle' crashing... crashRecursionCounter = 2
Aborted                    (core dumped) spectacle

The crash can be reproduced every time.

-- Backtrace:
Application: Spectacle (spectacle), signal: Aborted


warning: Can't open file /memfd:kwin-dmabuf-feedback-table (deleted) during file-backed mapping note processing
[New LWP 17833]
[New LWP 17844]
[New LWP 17849]
[New LWP 17854]
[New LWP 17847]
[New LWP 17834]
[New LWP 17843]
[New LWP 17839]
[New LWP 17845]
[New LWP 17850]
[New LWP 17848]
[New LWP 17840]
[New LWP 17841]
[New LWP 17842]
[New LWP 17836]
[New LWP 17852]
[New LWP 17853]
[New LWP 17851]
[New LWP 17835]
[New LWP 17846]
[Thread debugging using libthread_db enabled]
Using host libthread_db library "/lib64/libthread_db.so.1".
Core was generated by `/usr/bin/spectacle --dbus'.
Program terminated with signal SIGABRT, Aborted.
#0  0x00007fd5588803cc in __pthread_kill_implementation () from /lib64/libc.so.6
[Current thread is 1 (Thread 0x7fd5446f5a40 (LWP 17833))]
[Current thread is 13 (Thread 0x7fd505a476c0 (LWP 17841))]

Thread 20 (Thread 0x7fd5046426c0 (LWP 17846)):
#0  0x00007fd5588ff34d in syscall () from /lib64/libc.so.6
#1  0x00007fd554fd074c in tbb::detail::r1::rml::private_worker::thread_routine(void*) () from /lib64/libtbb.so.12
#2  0x00007fd55887e464 in start_thread () from /lib64/libc.so.6
#3  0x00007fd5589015ac in __clone3 () from /lib64/libc.so.6

Thread 19 (Thread 0x7fd535ad06c0 (LWP 17835)):
#0  0x00007fd558886982 in __syscall_cancel_arch () from /lib64/libc.so.6
#1  0x00007fd55887ac3c in __internal_syscall_cancel () from /lib64/libc.so.6
#2  0x00007fd55887ac84 in __syscall_cancel () from /lib64/libc.so.6
#3  0x00007fd5588f419e in poll () from /lib64/libc.so.6
#4  0x00007fd55befb2a2 in QtWaylandClient::EventThread::run() () from /lib64/libQt6WaylandClient.so.6
#5  0x00007fd5594d19ae in QThreadPrivate::start(void*) () from /lib64/libQt6Core.so.6
#6  0x00007fd55887e464 in start_thread () from /lib64/libc.so.6
#7  0x00007fd5589015ac in __clone3 () from /lib64/libc.so.6

Thread 18 (Thread 0x7fd4e6ffb6c0 (LWP 17851)):
#0  0x00007fd5588ff34d in syscall () from /lib64/libc.so.6
#1  0x00007fd554fd074c in tbb::detail::r1::rml::private_worker::thread_routine(void*) () from /lib64/libtbb.so.12
#2  0x00007fd55887e464 in start_thread () from /lib64/libc.so.6
#3  0x00007fd5589015ac in __clone3 () from /lib64/libc.so.6

Thread 17 (Thread 0x7fd4e6bfa6c0 (LWP 17853)):
#0  0x00007fd5588ff34d in syscall () from /lib64/libc.so.6
#1  0x00007fd554fd074c in tbb::detail::r1::rml::private_worker::thread_routine(void*) () from /lib64/libtbb.so.12
#2  0x00007fd55887e464 in start_thread () from /lib64/libc.so.6
#3  0x00007fd5589015ac in __clone3 () from /lib64/libc.so.6

Thread 16 (Thread 0x7fd4e67f96c0 (LWP 17852)):
#0  0x00007fd5588ff34d in syscall () from /lib64/libc.so.6
#1  0x00007fd554fd074c in tbb::detail::r1::rml::private_worker::thread_routine(void*) () from /lib64/libtbb.so.12
#2  0x00007fd55887e464 in start_thread () from /lib64/libc.so.6
#3  0x00007fd5589015ac in __clone3 () from /lib64/libc.so.6

Thread 15 (Thread 0x7fd5352cf6c0 (LWP 17836)):
#0  0x00007fd558886982 in __syscall_cancel_arch () from /lib64/libc.so.6
#1  0x00007fd55887ac3c in __internal_syscall_cancel () from /lib64/libc.so.6
#2  0x00007fd55887ac84 in __syscall_cancel () from /lib64/libc.so.6
#3  0x00007fd5588f419e in poll () from /lib64/libc.so.6
#4  0x00007fd55befb2a2 in QtWaylandClient::EventThread::run() () from /lib64/libQt6WaylandClient.so.6
#5  0x00007fd5594d19ae in QThreadPrivate::start(void*) () from /lib64/libQt6Core.so.6
#6  0x00007fd55887e464 in start_thread () from /lib64/libc.so.6
#7  0x00007fd5589015ac in __clone3 () from /lib64/libc.so.6

Thread 14 (Thread 0x7fd5056466c0 (LWP 17842)):
#0  0x00007fd5588ff34d in syscall () from /lib64/libc.so.6
#1  0x00007fd554fd074c in tbb::detail::r1::rml::private_worker::thread_routine(void*) () from /lib64/libtbb.so.12
#2  0x00007fd55887e464 in start_thread () from /lib64/libc.so.6
#3  0x00007fd5589015ac in __clone3 () from /lib64/libc.so.6

Thread 13 (Thread 0x7fd505a476c0 (LWP 17841)):
#0  0x00007fd5588ff34d in syscall () from /lib64/libc.so.6
#1  0x00007fd554fd074c in tbb::detail::r1::rml::private_worker::thread_routine(void*) () from /lib64/libtbb.so.12
#2  0x00007fd55887e464 in start_thread () from /lib64/libc.so.6
#3  0x00007fd5589015ac in __clone3 () from /lib64/libc.so.6

Thread 12 (Thread 0x7fd505e486c0 (LWP 17840)):
#0  0x00007fd5588ff34d in syscall () from /lib64/libc.so.6
#1  0x00007fd554fd074c in tbb::detail::r1::rml::private_worker::thread_routine(void*) () from /lib64/libtbb.so.12
#2  0x00007fd55887e464 in start_thread () from /lib64/libc.so.6
#3  0x00007fd5589015ac in __clone3 () from /lib64/libc.so.6

Thread 11 (Thread 0x7fd4e7fff6c0 (LWP 17848)):
#0  0x00007fd5588ff34d in syscall () from /lib64/libc.so.6
#1  0x00007fd554fd074c in tbb::detail::r1::rml::private_worker::thread_routine(void*) () from /lib64/libtbb.so.12
#2  0x00007fd55887e464 in start_thread () from /lib64/libc.so.6
#3  0x00007fd5589015ac in __clone3 () from /lib64/libc.so.6

Thread 10 (Thread 0x7fd4e73fc6c0 (LWP 17850)):
#0  0x00007fd5588ff34d in syscall () from /lib64/libc.so.6
#1  0x00007fd554fd074c in tbb::detail::r1::rml::private_worker::thread_routine(void*) () from /lib64/libtbb.so.12
#2  0x00007fd55887e464 in start_thread () from /lib64/libc.so.6
#3  0x00007fd5589015ac in __clone3 () from /lib64/libc.so.6

Thread 9 (Thread 0x7fd504a436c0 (LWP 17845)):
#0  0x00007fd5588ff34d in syscall () from /lib64/libc.so.6
#1  0x00007fd554fd074c in tbb::detail::r1::rml::private_worker::thread_routine(void*) () from /lib64/libtbb.so.12
#2  0x00007fd55887e464 in start_thread () from /lib64/libc.so.6
#3  0x00007fd5589015ac in __clone3 () from /lib64/libc.so.6

Thread 8 (Thread 0x7fd515bff6c0 (LWP 17839)):
#0  0x00007fd558886982 in __syscall_cancel_arch () from /lib64/libc.so.6
#1  0x00007fd55887ac3c in __internal_syscall_cancel () from /lib64/libc.so.6
#2  0x00007fd55887b2ac in __futex_abstimed_wait_common () from /lib64/libc.so.6
#3  0x00007fd55887db88 in pthread_cond_timedwait@@GLIBC_2.3.2 () from /lib64/libc.so.6
#4  0x00007fd5594da1a3 in QWaitCondition::wait(QMutex*, QDeadlineTimer) () from /lib64/libQt6Core.so.6
#5  0x00007fd55942fe9c in QThreadPoolThread::run() () from /lib64/libQt6Core.so.6
#6  0x00007fd5594d19ae in QThreadPrivate::start(void*) () from /lib64/libQt6Core.so.6
#7  0x00007fd55887e464 in start_thread () from /lib64/libc.so.6
#8  0x00007fd5589015ac in __clone3 () from /lib64/libc.so.6

Thread 7 (Thread 0x7fd5052456c0 (LWP 17843)):
#0  0x00007fd5588ff34d in syscall () from /lib64/libc.so.6
#1  0x00007fd554fd074c in tbb::detail::r1::rml::private_worker::thread_routine(void*) () from /lib64/libtbb.so.12
#2  0x00007fd55887e464 in start_thread () from /lib64/libc.so.6
#3  0x00007fd5589015ac in __clone3 () from /lib64/libc.so.6

Thread 6 (Thread 0x7fd5363ff6c0 (LWP 17834)):
#0  0x00007fd558886982 in __syscall_cancel_arch () from /lib64/libc.so.6
#1  0x00007fd55887ac3c in __internal_syscall_cancel () from /lib64/libc.so.6
#2  0x00007fd55887ac84 in __syscall_cancel () from /lib64/libc.so.6
#3  0x00007fd5588f46c6 in ppoll () from /lib64/libc.so.6
#4  0x00007fd5552f42e0 in g_main_context_iterate_unlocked.isra () from /lib64/libglib-2.0.so.0
#5  0x00007fd5552f43a3 in g_main_context_iteration () from /lib64/libglib-2.0.so.0
#6  0x00007fd55961e80d in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib64/libQt6Core.so.6
#7  0x00007fd559309063 in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib64/libQt6Core.so.6
#8  0x00007fd55942bdc6 in QThread::exec() () from /lib64/libQt6Core.so.6
#9  0x00007fd55a547ae1 in QDBusConnectionManager::run() () from /lib64/libQt6DBus.so.6
#10 0x00007fd5594d19ae in QThreadPrivate::start(void*) () from /lib64/libQt6Core.so.6
#11 0x00007fd55887e464 in start_thread () from /lib64/libc.so.6
#12 0x00007fd5589015ac in __clone3 () from /lib64/libc.so.6

Thread 5 (Thread 0x7fd4e7bfe6c0 (LWP 17847)):
#0  0x00007fd5588ff34d in syscall () from /lib64/libc.so.6
#1  0x00007fd554fd074c in tbb::detail::r1::rml::private_worker::thread_routine(void*) () from /lib64/libtbb.so.12
#2  0x00007fd55887e464 in start_thread () from /lib64/libc.so.6
#3  0x00007fd5589015ac in __clone3 () from /lib64/libc.so.6

Thread 4 (Thread 0x7fd4e63f86c0 (LWP 17854)):
#0  0x00007fd5588ff34d in syscall () from /lib64/libc.so.6
#1  0x00007fd554fd074c in tbb::detail::r1::rml::private_worker::thread_routine(void*) () from /lib64/libtbb.so.12
#2  0x00007fd55887e464 in start_thread () from /lib64/libc.so.6
#3  0x00007fd5589015ac in __clone3 () from /lib64/libc.so.6

Thread 3 (Thread 0x7fd4e77fd6c0 (LWP 17849)):
#0  0x00007fd5588ff34d in syscall () from /lib64/libc.so.6
#1  0x00007fd554fd074c in tbb::detail::r1::rml::private_worker::thread_routine(void*) () from /lib64/libtbb.so.12
#2  0x00007fd55887e464 in start_thread () from /lib64/libc.so.6
#3  0x00007fd5589015ac in __clone3 () from /lib64/libc.so.6

Thread 2 (Thread 0x7fd504e446c0 (LWP 17844)):
#0  0x00007fd5588ff34d in syscall () from /lib64/libc.so.6
#1  0x00007fd554fd074c in tbb::detail::r1::rml::private_worker::thread_routine(void*) () from /lib64/libtbb.so.12
#2  0x00007fd55887e464 in start_thread () from /lib64/libc.so.6
#3  0x00007fd5589015ac in __clone3 () from /lib64/libc.so.6

Thread 1 (Thread 0x7fd5446f5a40 (LWP 17833)):
[KCrash Handler]
#4  0x00007fd5588803cc in __pthread_kill_implementation () from /lib64/libc.so.6
#5  0x00007fd55882618e in raise () from /lib64/libc.so.6
#6  0x00007fd55880d6d0 in abort () from /lib64/libc.so.6
#7  0x00007fd558a091b4 in __gnu_cxx::__verbose_terminate_handler() [clone .cold] () from /lib64/libstdc++.so.6
#8  0x00007fd558a1eb9c in __cxxabiv1::__terminate(void (*)()) () from /lib64/libstdc++.so.6
#9  0x00007fd558a08d3a in std::terminate() () from /lib64/libstdc++.so.6
#10 0x00007fd558a1ee48 in __cxa_throw () from /lib64/libstdc++.so.6
#11 0x00007fd558e26714 in cv::error(cv::Exception const&) [clone .cold] () from /lib64/libopencv_core.so.411
#12 0x00007fd5590538c5 in cv::error(int, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&, char const*, char const*, int) () from /lib64/libopencv_core.so.411
#13 0x00007fd55c838342 in cv::resize(cv::_InputArray const&, cv::_OutputArray const&, cv::Size_<int>, double, double, int) () from /lib64/libopencv_imgproc.so.411
#14 0x000055af5dbe5caf in QtPrivate::QCallableObject<ImagePlatformKWin::trackSource<void (ImagePlatform::*)(QImage const&)>(ScreenShotSourceMeta2*, void (ImagePlatform::*)(QImage const&))::{lambda(QList<ResultVariant> const&)#1}, QtPrivate::List<QList<ResultVariant> const&>, void>::impl(int, QtPrivate::QSlotObjectBase*, QObject*, void**, bool*) ()
#15 0x00007fd55936759a in void doActivate<false>(QObject*, int, void**) () from /lib64/libQt6Core.so.6
#16 0x000055af5dbdf741 in QtPrivate::QCallableObject<ScreenShotSourceMeta2::ScreenShotSourceMeta2(QList<ScreenShotSource2*> const&)::{lambda(ResultVariant const&)#1}, QtPrivate::List<ResultVariant const&>, void>::impl(int, QtPrivate::QSlotObjectBase*, QObject*, void**, bool*) [clone .lto_priv.0] ()
#17 0x00007fd559358fcc in QObject::event(QEvent*) () from /lib64/libQt6Core.so.6
#18 0x00007fd55b63db9f in QApplicationPrivate::notify_helper(QObject*, QEvent*) () from /lib64/libQt6Widgets.so.6
#19 0x00007fd5592fc4e8 in QCoreApplication::notifyInternal2(QObject*, QEvent*) () from /lib64/libQt6Core.so.6
#20 0x00007fd5592ffb09 in QCoreApplicationPrivate::sendPostedEvents(QObject*, int, QThreadData*) () from /lib64/libQt6Core.so.6
#21 0x00007fd55961efcf in postEventSourceDispatch(_GSource*, int (*)(void*), void*) () from /lib64/libQt6Core.so.6
#22 0x00007fd5552eb2a3 in g_main_context_dispatch_unlocked.lto_priv () from /lib64/libglib-2.0.so.0
#23 0x00007fd5552f41f8 in g_main_context_iterate_unlocked.isra () from /lib64/libglib-2.0.so.0
#24 0x00007fd5552f43a3 in g_main_context_iteration () from /lib64/libglib-2.0.so.0
#25 0x00007fd55961e80d in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib64/libQt6Core.so.6
#26 0x00007fd559309063 in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib64/libQt6Core.so.6
#27 0x00007fd559304819 in QCoreApplication::exec() () from /lib64/libQt6Core.so.6
#28 0x000055af5db5924f in main ()

Reported using DrKonqi