https://bugs.kde.org/show_bug.cgi?id=462568

            Bug ID: 462568
           Summary: Crash upon DPMS=off, after using Tiles
    Classification: Plasma
           Product: kwin
           Version: 5.25.5
          Platform: Other
                OS: Linux
            Status: REPORTED
          Severity: normal
          Priority: NOR
         Component: wayland-generic
          Assignee: kwin-bugs-n...@kde.org
          Reporter: aleix...@kde.org
  Target Milestone: ---

#0  __pthread_kill_implementation (threadid=<optimized out>,
signo=signo@entry=6, no_tid=no_tid@entry=0) at pthread_kill.c:44
#1  0x00007f9a57aa16b3 in __pthread_kill_internal (signo=6, threadid=<optimized
out>) at pthread_kill.c:78
#2  0x00007f9a57a51958 in __GI_raise (sig=sig@entry=6) at
../sysdeps/posix/raise.c:26
#3  0x00007f9a57a3b53d in __GI_abort () at abort.c:79
#4  0x00007f9a59693caf in qt_message_fatal (message=<synthetic pointer>...,
context=<optimized out>)
    at
/home/apol/devel/frameworks/qt5/qtbase/src/corelib/global/qlogging.cpp:1914
#5  QMessageLogger::fatal(char const*, ...) const
(this=this@entry=0x7ffd58dc0428, msg=msg@entry=0x7f9a59999000 "ASSERT: \"%s\"
in file %s, line %d")
    at
/home/apol/devel/frameworks/qt5/qtbase/src/corelib/global/qlogging.cpp:893
#6  0x00007f9a59693008 in qt_assert(char const*, char const*, int)
(assertion=<optimized out>, file=<optimized out>, line=<optimized out>)
    at
/home/apol/devel/frameworks/qt5/qtbase/src/corelib/global/qglobal.cpp:3366
#7  0x00007f9a5b8570cf in KWin::Workspace::tileManager(KWin::Output*)
(this=0x55efa894fda0, output=0x55efa9d22b80)
    at /home/apol/devel/frameworks/kwin/src/workspace.cpp:3149
#8  0x00007f9a5b819f43 in
KWin::Window::quickTileGeometry(QFlags<KWin::QuickTileFlag>, QPointF const&)
const (this=0x55efa9cbd6c0, mode=..., pos=...)
    at /home/apol/devel/frameworks/kwin/src/window.cpp:3752
#9  0x00007f9a5b824f46 in KWin::Window::ensureSpecialStateGeometry(QRectF
const&) (this=0x55efa9cbd6c0, geometry=...)
    at /home/apol/devel/frameworks/kwin/src/window.cpp:4005
#10 0x00007f9a5b8251f7 in KWin::Window::sendToOutput(KWin::Output*)
(this=0x55efa9cbd6c0, newOutput=0x55efa9d22b80)
    at /home/apol/devel/frameworks/kwin/src/window.cpp:4037
#11 0x00007f9a5b6fd581 in KWin::PlacementTracker::restore(QString const&)
(this=0x7f9a4c0177d0, key=...)
    at /home/apol/devel/frameworks/kwin/src/placementtracker.cpp:124
#12 0x00007f9a5b848a53 in KWin::Workspace::desktopResized()
(this=0x55efa894fda0) at
/home/apol/devel/frameworks/kwin/src/workspace.cpp:2293
#13 0x00007f9a5b844f55 in KWin::Workspace::updateOutputs()
(this=0x55efa894fda0) at
/home/apol/devel/frameworks/kwin/src/workspace.cpp:1453
#14 0x00007f9a5b840315 in KWin::Workspace::slotOutputBackendOutputsQueried()
(this=0x55efa894fda0) at
/home/apol/devel/frameworks/kwin/src/workspace.cpp:1415
#15 0x00007f9a5b7e71d8 in QtPrivate::FunctorCall<QtPrivate::IndexesList<>,
QtPrivate::List<>, void, void (KWin::Workspace::*)()>::call(void
(KWin::Workspace::*)(), KWin::Workspace*, void**)
    (f=(void (KWin::Workspace::*)(class KWin::Workspace * const))
0x7f9a5b8402e0 <KWin::Workspace::slotOutputBackendOutputsQueried()>,
o=0x55efa894fda0, arg=0x7ffd58dc0eb0) at
/home/apol/devel/kde5/include/QtCore/qobjectdefs_impl.h:152
#16 0x00007f9a5b7e713d in QtPrivate::FunctionPointer<void
(KWin::Workspace::*)()>::call<QtPrivate::List<>, void>(void
(KWin::Workspace::*)(), KWin::Workspace*, void**)
    (f=(void (KWin::Workspace::*)(class KWin::Workspace * const))
0x7f9a5b8402e0 <KWin::Workspace::slotOutputBackendOutputsQueried()>,
o=0x55efa894fda0, arg=0x7ffd58dc0eb0) at
/home/apol/devel/kde5/include/QtCore/qobjectdefs_impl.h:185
#17 0x00007f9a5b7e7082 in QtPrivate::QSlotObject<void (KWin::Workspace::*)(),
QtPrivate::List<>, void>::impl(int, QtPrivate::QSlotObjectBase*, QObject*,
void**, bool*) (which=1, this_=0x55efa8ad3dc0, r=0x55efa894fda0,
a=0x7ffd58dc0eb0, ret=0x0) at
/home/apol/devel/kde5/include/QtCore/qobjectdefs_impl.h:418
#18 0x00007f9a598ed98d in QtPrivate::QSlotObjectBase::call(QObject*, void**)
(a=0x7ffd58dc0eb0, r=0x55efa894fda0, this=0x55efa8ad3dc0)
    at
../../include/QtCore/../../../../../devel/frameworks/qt5/qtbase/src/corelib/kernel/qobjectdefs_impl.h:398
#19 doActivate<false>(QObject*, int, void**) (sender=0x55efa840ee70,
signal_index=3, argv=0x7ffd58dc0eb0)
    at
/home/apol/devel/frameworks/qt5/qtbase/src/corelib/kernel/qobject.cpp:3919
#20 0x00007f9a5b4f97b2 in KWin::OutputBackend::outputsQueried()
(this=0x55efa840ee70) at src/kwin_autogen/TAC5DWH4SE/moc_outputbackend.cpp:164
#21 0x00007f9a5b8dec10 in KWin::DrmBackend::updateOutputs()
(this=0x55efa840ee70) at
/home/apol/devel/frameworks/kwin/src/backends/drm/drm_backend.cpp:329
#22 0x00007f9a5b8e0189 in KWin::DrmBackend::handleUdevEvent()
(this=0x55efa840ee70) at
/home/apol/devel/frameworks/kwin/src/backends/drm/drm_backend.cpp:265
#23 0x00007f9a5b8e7618 in QtPrivate::FunctorCall<QtPrivate::IndexesList<>,
QtPrivate::List<>, void, void (KWin::DrmBackend::*)()>::call(void
(KWin::DrmBackend::*)(), KWin::DrmBackend*, void**)

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