Bug 479959

Application: spectacle (23.08.4)

Qt Version: 5.15.12
Frameworks Version: 5.114.0
Operating System: Linux 6.6.11-1-default x86_64
Windowing System: X11
Distribution: "openSUSE Tumbleweed"
DrKonqi: 5.27.10 [KCrashBackend]

-- Information about the crash:
Spectacle crashes when using the new screenshot button on the rectangular selection UI's toolbar after going into the options menu on the toolbar and changing the capture mode to "Active Window". Changing the mode from the main Spectacle window (with the preview box) and taking a screenshot doesn't result in a crash, however. Additionally, this crash doesn't occur when the rectangular selection UI's menu is on my second monitor, so I suspect that my primary monitor's high resolution (2560x1600) could have something to do with it, as my second monitor is only 1920x1200.

The crash can be reproduced every time.

-- Backtrace:
Application: Spectacle (spectacle), signal: Segmentation fault

[KCrash Handler]
#4  0x0000555c4c51e045 in PlatformXcb::getWindowImage(unsigned int, bool) (this=0x555c4d9da1c0, blendPointer=<optimized out>, window=0) at /usr/src/debug/spectacle-23.08.4/src/Platforms/PlatformXcb.cpp:438
#5  PlatformXcb::grabApplicationWindow(unsigned int, bool, bool) (this=0x555c4d9da1c0, window=0, includePointer=false, includeDecorations=false) at /usr/src/debug/spectacle-23.08.4/src/Platforms/PlatformXcb.cpp:519
#6  0x00007f463d129a52 in QtPrivate::QSlotObjectBase::call(QObject*, void**) (a=0x7ffff8ebd1e0, r=<optimized out>, this=<optimized out>) at ../../include/QtCore/../../src/corelib/kernel/qobjectdefs_impl.h:398
#7  QSingleShotTimer::timerEvent(QTimerEvent*) (this=0x555c511e8110) at kernel/qtimer.cpp:322
#8  0x00007f463d1195fb in QObject::event(QEvent*) (this=0x555c511e8110, e=0x7ffff8ebd320) at kernel/qobject.cpp:1369
#9  0x00007f463eba51ae in QApplicationPrivate::notify_helper(QObject*, QEvent*) (this=<optimized out>, receiver=0x555c511e8110, e=0x7ffff8ebd320) at kernel/qapplication.cpp:3640
#10 0x00007f463d0ed938 in QCoreApplication::notifyInternal2(QObject*, QEvent*) (receiver=0x555c511e8110, event=0x7ffff8ebd320) at kernel/qcoreapplication.cpp:1064
#11 0x00007f463d0edafe in QCoreApplication::sendEvent(QObject*, QEvent*) (receiver=<optimized out>, event=<optimized out>) at kernel/qcoreapplication.cpp:1462
#12 0x00007f463d145c69 in QTimerInfoList::activateTimers() (this=0x555c4db14960) at kernel/qtimerinfo_unix.cpp:643
#13 0x00007f463d14654c in timerSourceDispatch (source=<optimized out>) at kernel/qeventdispatcher_glib.cpp:183
#14 idleTimerSourceDispatch(GSource*, GSourceFunc, gpointer) (source=<optimized out>) at kernel/qeventdispatcher_glib.cpp:230
#15 0x00007f4639d13f30 in  () at /lib64/libglib-2.0.so.0
#16 0x00007f4639d15b58 in  () at /lib64/libglib-2.0.so.0
#17 0x00007f4639d1620c in g_main_context_iteration () at /lib64/libglib-2.0.so.0
#18 0x00007f463d146876 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=0x555c4db14d20, flags=...) at kernel/qeventdispatcher_glib.cpp:423
#19 0x00007f463d0ec3cb in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) (this=this@entry=0x7ffff8ebd560, flags=..., flags@entry=...) at ../../include/QtCore/../../src/corelib/global/qflags.h:69
#20 0x00007f463d0f4860 in QCoreApplication::exec() () at ../../include/QtCore/../../src/corelib/global/qflags.h:121
#21 0x0000555c4c4d09b6 in main(int, char**) (argc=<optimized out>, argv=<optimized out>) at /usr/src/debug/spectacle-23.08.4/src/Main.cpp:127
[Inferior 1 (process 20494) detached]

Reported using DrKonqi