https://bugs.kde.org/show_bug.cgi?id=495679

            Bug ID: 495679
           Summary: Select 'Active Window' and spectacle just crashes
    Classification: Applications
           Product: Spectacle
           Version: 23.08.5
          Platform: Other
                OS: Linux
            Status: REPORTED
          Keywords: drkonqi
          Severity: crash
          Priority: NOR
         Component: General
          Assignee: noaha...@gmail.com
          Reporter: les...@lsces.co.uk
                CC: k...@david-redondo.de
  Target Milestone: ---

Application: spectacle (23.08.5)

Qt Version: 5.15.12
Frameworks Version: 5.115.0
Operating System: Linux 6.4.0-150600.23.25-default x86_64
Windowing System: X11
Distribution: openSUSE Leap 15.6
DrKonqi: 5.27.11 [KCrashBackend]

-- Information about the crash:
I have a somewhat contorted display area with a very high res center screen,
and 1920x1080 screens on either side. I am trying to capture the window in the
center screen and have done this many times, but today getting captures are
just giving crashes. Not sure what has changed, but I DO have completed
captures perhaps 1 in 5 times.

The crash can be reproduced sometimes.

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

[KCrash Handler]
#4  PlatformXcb::getWindowImage(unsigned int, bool)
(this=this@entry=0x5576c56e8f90, window=window@entry=0,
blendPointer=blendPointer@entry=false) at
/usr/src/debug/spectacle-23.08.5-bp156.1.2.x86_64/src/Platforms/PlatformXcb.cpp:438
#5  0x00005576c3dac10d in PlatformXcb::grabApplicationWindow(unsigned int,
bool, bool) (this=this@entry=0x5576c56e8f90, window=window@entry=0,
includePointer=includePointer@entry=false,
includeDecorations=includeDecorations@entry=false) at
/usr/src/debug/spectacle-23.08.5-bp156.1.2.x86_64/src/Platforms/PlatformXcb.cpp:519
#6  0x00005576c3dacbe4 in PlatformXcb::grabActiveWindow(bool, bool)
(this=this@entry=0x5576c56e8f90, includePointer=includePointer@entry=false,
includeDecorations=includeDecorations@entry=false) at
/usr/src/debug/spectacle-23.08.5-bp156.1.2.x86_64/src/Platforms/PlatformXcb.cpp:573
#7  0x00005576c3dade78 in PlatformXcb::doGrabNow(Platform::GrabMode, bool,
bool) (this=0x5576c56e8f90, grabMode=Platform::ActiveWindow,
includePointer=<optimized out>, includeDecorations=<optimized out>) at
/usr/src/debug/spectacle-23.08.5-bp156.1.2.x86_64/src/Platforms/PlatformXcb.cpp:720
#8  0x00007f8064d19e24 in QtPrivate::QSlotObjectBase::call(QObject*, void**)
(a=0x7ffee7b120e0, r=<optimized out>, this=<optimized out>) at
../../include/QtCore/../../src/corelib/kernel/qobjectdefs_impl.h:398
#9  QSingleShotTimer::timerEvent(QTimerEvent*) (this=0x5576c65ab730) at
kernel/qtimer.cpp:322
#10 0x00007f8064d0bb73 in QObject::event(QEvent*) (this=0x5576c65ab730,
e=0x7ffee7b123f0) at kernel/qobject.cpp:1369
#11 0x00007f806659f87c in QApplicationPrivate::notify_helper(QObject*, QEvent*)
(this=this@entry=0x5576c54e5080, receiver=receiver@entry=0x5576c65ab730,
e=e@entry=0x7ffee7b123f0) at kernel/qapplication.cpp:3640
#12 0x00007f80665a663f in QApplication::notify(QObject*, QEvent*)
(this=<optimized out>, receiver=0x5576c65ab730, e=0x7ffee7b123f0) at
kernel/qapplication.cpp:3164
#13 0x00007f8064cd7d53 in QCoreApplication::notifyInternal2(QObject*, QEvent*)
(receiver=0x5576c65ab730, event=0x7ffee7b123f0) at
kernel/qcoreapplication.cpp:1064
#14 0x00007f8064d39609 in QTimerInfoList::activateTimers()
(this=0x5576c5695a20) at kernel/qtimerinfo_unix.cpp:643
#15 0x00007f8064d39e09 in timerSourceDispatch (source=<optimized out>) at
kernel/qeventdispatcher_glib.cpp:183
#16 idleTimerSourceDispatch(GSource*, GSourceFunc, gpointer) (source=<optimized
out>) at kernel/qeventdispatcher_glib.cpp:230
#17 0x00007f8062314fac in  () at /usr/lib64/libglib-2.0.so.0
#18 0x00007f8062316bd0 in  () at /usr/lib64/libglib-2.0.so.0
#19 0x00007f80623171cc in g_main_context_iteration () at
/usr/lib64/libglib-2.0.so.0
#20 0x00007f8064d3a17c in
QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>)
(this=0x5576c5695de0, flags=...) at kernel/qeventdispatcher_glib.cpp:423
#21 0x00007f8064cd65ba in
QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>)
(this=this@entry=0x7ffee7b12640, flags=..., flags@entry=...) at
kernel/qeventloop.cpp:235
#22 0x00007f8064cdfdf7 in QCoreApplication::exec() () at
kernel/qcoreapplication.cpp:1375
#23 0x00005576c3d42666 in main(int, char**) (argc=<optimized out>,
argv=<optimized out>) at
/usr/src/debug/spectacle-23.08.5-bp156.1.2.x86_64/src/Main.cpp:127
[Inferior 1 (process 5037) detached]

The reporter indicates this bug may be a duplicate of or related to bug 479959.

Reported using DrKonqi

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