https://bugs.kde.org/show_bug.cgi?id=448474
Bug ID: 448474
Summary: KWin crashed in KWin::DrmOutput::DrmOutput when
plugging in an external HDMI screen
Product: kwin
Version: git master
Platform: Other
OS: Linux
Status: REPORTED
Severity: crash
Priority: NOR
Component: wayland-generic
Assignee: kwin-bugs-n...@kde.org
Reporter: n...@kde.org
Target Milestone: ---
I plugged in an external 27" 1080p screen into my laptop's HDMI port and
kwin_wayland immediately crashed:
#0 QVector<KWin::DrmConnectorMode*>::realloc(int,
QFlags<QArrayData::AllocationOption>)
(options=..., aalloc=<optimized out>, this=0x7ffeeaeb2798)
at /usr/include/c++/11/bits/atomic_base.h:385
#1 QVector<KWin::DrmConnectorMode*>::detach() (this=0x7ffeeaeb2798)
at /usr/include/qt5/QtCore/qvector.h:405
#2 QVector<KWin::DrmConnectorMode*>::detach() (this=0x7ffeeaeb2798)
at /usr/include/qt5/QtCore/qvector.h:397
#3 QVector<KWin::DrmConnectorMode*>::data() (this=0x7ffeeaeb2798)
at /usr/include/qt5/QtCore/qvector.h:134
#4 QVector<KWin::DrmConnectorMode*>::operator[](int) (i=-652783056,
this=0x7ffeeaeb2798)
at /usr/include/qt5/QtCore/qvector.h:458
#5 KWin::DrmOutput::getModes() const (this=<optimized out>)
at /home/nate/kde/src/kwin/src/backends/drm/drm_output.cpp:190
#6 0x00007fcbc6768fa3 in KWin::DrmOutput::DrmOutput(KWin::DrmPipeline*) (this=
0x71, pipeline=<optimized out>) at
/home/nate/kde/src/kwin/src/backends/drm/drm_output.cpp:58
#7 0x00007fcbc67751cf in QTypedArrayData<unsigned
long>::deallocate(QArrayData*)
(data=<optimized out>) at /usr/include/qt5/QtCore/qarraydata.h:239
#8 QVector<unsigned long>::freeData(QTypedArrayData<unsigned long>*)
(x=<optimized out>, this=<optimized out>) at
/usr/include/qt5/QtCore/qvector.h:579
#9 QVector<unsigned long>::~QVector() (this=<optimized out>,
__in_chrg=<optimized out>)
at /usr/include/qt5/QtCore/qvector.h:73
#10 QVector<unsigned long>::~QVector() (this=0x20, __in_chrg=<optimized out>)
at /usr/include/qt5/QtCore/qvector.h:73
#11 QMapNodeBase::callDestructorIfNecessary<QVector<unsigned long>
>(QVector<unsigned long>&)
(t=...) at /usr/include/qt5/QtCore/qmap.h:100
#12 QMapNode<unsigned int, QVector<unsigned long> >::destroySubTree()
(this=0x0)
at /usr/include/qt5/QtCore/qmap.h:125
#13 QMapNode<unsigned int, QVector<unsigned long>
>::doDestroySubTree(std::integral_constant<bool, true>) (this=<optimized out>)
at /usr/include/qt5/QtCore/qmap.h:139
#14 QMapNode<unsigned int, QVector<unsigned long> >::destroySubTree()
(this=<optimized out>)
at /usr/include/qt5/QtCore/qmap.h:126
#15 QMapNode<unsigned int, QVector<unsigned long>
>::doDestroySubTree(std::integral_constant<bool, true>) (this=<optimized out>)
at /usr/include/qt5/QtCore/qmap.h:137
#16 QMapNode<unsigned int, QVector<unsigned long> >::destroySubTree()
(this=<optimized out>)
at /usr/include/qt5/QtCore/qmap.h:126
#17 QMapData<unsigned int, QVector<unsigned long> >::destroy() (this=0x12d8e60)
at /usr/include/qt5/QtCore/qmap.h:249
#18 QMap<unsigned int, QVector<unsigned long> >::~QMap() (this=0x7,
__in_chrg=<optimized out>)
at /usr/include/qt5/QtCore/qmap.h:338
#19 KWin::DrmGpu::isFormatSupported(unsigned int) const (this=<optimized out>,
drmFormat=20455624)
at /home/nate/kde/src/kwin/src/backends/drm/drm_gpu.cpp:602
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