https://bugs.kde.org/show_bug.cgi?id=404580
Bug ID: 404580
Summary: kwin crashes when enabling laptop screen
Product: kwin
Version: 5.15.1
Platform: Other
OS: Linux
Status: REPORTED
Severity: normal
Priority: NOR
Component: wayland-generic
Assignee: kwin-bugs-n...@kde.org
Reporter: andr...@stikonas.eu
Target Milestone: ---
I have an external screen that is plugged into my laptop.
Normally, my display configuration is laptop screen (on the left) is turned
off, and external screen on the right is enabled.
If I go to screens kcm and enabled laptops screen (positioning it to the left
of external screen), kwin_wayland crashes.
(gdb) thread apply all bt
Thread 10 (Thread 0x7fe8a242e700 (LWP 3771)):
#0 0x00007fe8e15c9d43 in poll () from /lib64/libc.so.6
#1 0x00007fe8d7fb31cb in ?? () from /usr/lib64/libglib-2.0.so.0
#2 0x00007fe8d7fb32ec in g_main_context_iteration () from
/usr/lib64/libglib-2.0.so.0
#3 0x00007fe8e2b2aa52 in QEventDispatcherGlib::processEvents
(this=0x7fe89c000b20, flags=...) at kernel/qeventdispatcher_glib.cpp:422
#4 0x00007fe8e2a9c5ff in QEventLoop::processEvents (this=0x7fe8a242dce0,
flags=...) at kernel/qeventloop.cpp:138
#5 0x00007fe8e2a9c8fd in QEventLoop::exec (this=0x7fe8a242dce0, flags=...) at
kernel/qeventloop.cpp:225
#6 0x00007fe8e285b62d in QThread::exec (this=0x55582905ef40) at
thread/qthread.cpp:531
#7 0x00007fe8eab51a65 in ?? () from /usr/lib64/libQt5Qml.so.5
#8 0x00007fe8e285e290 in QThreadPrivate::start (arg=0x55582905ef40) at
thread/qthread_unix.cpp:361
#9 0x00007fe8e55d496a in start_thread () from /lib64/libpthread.so.0
#10 0x00007fe8e15d591f in clone () from /lib64/libc.so.6
Thread 9 (Thread 0x7fe89a49f700 (LWP 3772)):
#0 0x00007fe8e15cfdf9 in syscall () from /lib64/libc.so.6
#1 0x00007fe8e285ff94 in QtLinuxFutex::_q_futex (addr=0x55582918fa80, op=0,
val=0, val2=0, addr2=0x0, val3=0) at thread/qfutex_p.h:92
#2 0x00007fe8e286451f in QtLinuxFutex::futexWait<QBasicAtomicInteger<unsigned
int> > (futex=..., expectedValue=0) at thread/qfutex_p.h:107
#3 0x00007fe8e286406d in futexSemaphoreTryAcquire_loop<false> (u=...,
curValue=4294967296, nn=8589934593, timeout=-1) at thread/qsemaphore.cpp:219
#4 0x00007fe8e2863c96 in futexSemaphoreTryAcquire<false> (u=..., n=1,
timeout=-1) at thread/qsemaphore.cpp:262
#5 0x00007fe8e28635ee in QSemaphore::acquire (this=0x55582918fa80, n=1) at
thread/qsemaphore.cpp:326
#6 0x00007fe8c66c77da in ?? () from /usr/lib64/libQt5HunspellInputMethod.so.5
#7 0x00007fe8e285e290 in QThreadPrivate::start (arg=0x55582918fa60) at
thread/qthread_unix.cpp:361
#8 0x00007fe8e55d496a in start_thread () from /lib64/libpthread.so.0
#9 0x00007fe8e15d591f in clone () from /lib64/libc.so.6
Thread 8 (Thread 0x7fe898c9c700 (LWP 3775)):
#0 0x00007fe8e55db57c in pthread_cond_wait@@GLIBC_2.3.2 () from
/lib64/libpthread.so.0
#1 0x00007fe8ec0389c4 in ?? () from /usr/lib64/libQt5Script.so.5
#2 0x00007fe8ec038a09 in ?? () from /usr/lib64/libQt5Script.so.5
#3 0x00007fe8e55d496a in start_thread () from /lib64/libpthread.so.0
#4 0x00007fe8e15d591f in clone () from /lib64/libc.so.6
Thread 7 (Thread 0x7fe8affff700 (LWP 3770)):
#0 0x00007fe8e15c9d43 in poll () from /lib64/libc.so.6
#1 0x00007fe8d7fb31cb in ?? () from /usr/lib64/libglib-2.0.so.0
#2 0x00007fe8d7fb32ec in g_main_context_iteration () from
/usr/lib64/libglib-2.0.so.0
#3 0x00007fe8e2b2aa52 in QEventDispatcherGlib::processEvents
(this=0x7fe8a4000b20, flags=...) at kernel/qeventdispatcher_glib.cpp:422
#4 0x00007fe8e2a9c5ff in QEventLoop::processEvents (this=0x7fe8afffece0,
flags=...) at kernel/qeventloop.cpp:138
#5 0x00007fe8e2a9c8fd in QEventLoop::exec (this=0x7fe8afffece0, flags=...) at
kernel/qeventloop.cpp:225
#6 0x00007fe8e285b62d in QThread::exec (this=0x555828f39720) at
thread/qthread.cpp:531
#7 0x00007fe8eab51a65 in ?? () from /usr/lib64/libQt5Qml.so.5
#8 0x00007fe8e285e290 in QThreadPrivate::start (arg=0x555828f39720) at
thread/qthread_unix.cpp:361
#9 0x00007fe8e55d496a in start_thread () from /lib64/libpthread.so.0
#10 0x00007fe8e15d591f in clone () from /lib64/libc.so.6
Thread 6 (Thread 0x7fe8b581c700 (LWP 3743)):
#0 0x00007fe8e55db57c in pthread_cond_wait@@GLIBC_2.3.2 () from
/lib64/libpthread.so.0
#1 0x00007fe8b61968cb in ?? () from /usr/lib64/dri/i965_dri.so
#2 0x00007fe8b61965da in ?? () from /usr/lib64/dri/i965_dri.so
#3 0x00007fe8e55d496a in start_thread () from /lib64/libpthread.so.0
#4 0x00007fe8e15d591f in clone () from /lib64/libc.so.6
---Type <return> to continue, or q <return> to quit---
Thread 5 (Thread 0x7fe8c4b3c700 (LWP 3742)):
#0 0x00007fe8e15c9d43 in poll () from /lib64/libc.so.6
#1 0x00007fe8d7fb31cb in ?? () from /usr/lib64/libglib-2.0.so.0
#2 0x00007fe8d7fb32ec in g_main_context_iteration () from
/usr/lib64/libglib-2.0.so.0
#3 0x00007fe8e2b2aa52 in QEventDispatcherGlib::processEvents
(this=0x7fe8bc000b20, flags=...) at kernel/qeventdispatcher_glib.cpp:422
#4 0x00007fe8e2a9c5ff in QEventLoop::processEvents (this=0x7fe8c4b3bce0,
flags=...) at kernel/qeventloop.cpp:138
#5 0x00007fe8e2a9c8fd in QEventLoop::exec (this=0x7fe8c4b3bce0, flags=...) at
kernel/qeventloop.cpp:225
#6 0x00007fe8e285b62d in QThread::exec (this=0x555828bb9e40) at
thread/qthread.cpp:531
#7 0x00007fe8e285b806 in QThread::run (this=0x555828bb9e40) at
thread/qthread.cpp:598
#8 0x00007fe8e285e290 in QThreadPrivate::start (arg=0x555828bb9e40) at
thread/qthread_unix.cpp:361
#9 0x00007fe8e55d496a in start_thread () from /lib64/libpthread.so.0
#10 0x00007fe8e15d591f in clone () from /lib64/libc.so.6
Thread 4 (Thread 0x7fe8c533d700 (LWP 3741)):
#0 0x00007fe8e15c9d43 in poll () from /lib64/libc.so.6
#1 0x00007fe8d7fb31cb in ?? () from /usr/lib64/libglib-2.0.so.0
#2 0x00007fe8d7fb32ec in g_main_context_iteration () from
/usr/lib64/libglib-2.0.so.0
#3 0x00007fe8e2b2aa52 in QEventDispatcherGlib::processEvents
(this=0x7fe8b8000b20, flags=...) at kernel/qeventdispatcher_glib.cpp:422
#4 0x00007fe8e2a9c5ff in QEventLoop::processEvents (this=0x7fe8c533cce0,
flags=...) at kernel/qeventloop.cpp:138
#5 0x00007fe8e2a9c8fd in QEventLoop::exec (this=0x7fe8c533cce0, flags=...) at
kernel/qeventloop.cpp:225
#6 0x00007fe8e285b62d in QThread::exec (this=0x555828b58a60) at
thread/qthread.cpp:531
#7 0x00007fe8e285b806 in QThread::run (this=0x555828b58a60) at
thread/qthread.cpp:598
#8 0x00007fe8e285e290 in QThreadPrivate::start (arg=0x555828b58a60) at
thread/qthread_unix.cpp:361
#9 0x00007fe8e55d496a in start_thread () from /lib64/libpthread.so.0
#10 0x00007fe8e15d591f in clone () from /lib64/libc.so.6
Thread 3 (Thread 0x7fe899c9e700 (LWP 3773)):
#0 0x00007fe8e55db57c in pthread_cond_wait@@GLIBC_2.3.2 () from
/lib64/libpthread.so.0
#1 0x00007fe8e286af37 in QWaitConditionPrivate::wait (this=0x55582902b780,
deadline=...) at thread/qwaitcondition_unix.cpp:146
#2 0x00007fe8e286abd4 in QWaitCondition::wait (this=0x55582907ccd0,
mutex=0x55582907ccc8, deadline=...) at thread/qwaitcondition_unix.cpp:225
#3 0x00007fe8e286aaac in QWaitCondition::wait (this=0x55582907ccd0,
mutex=0x55582907ccc8, time=18446744073709551615) at
thread/qwaitcondition_unix.cpp:208
#4 0x00007fe89b0c77cb in ?? () from
/usr/lib64/qt5/qml/Qt/labs/folderlistmodel/libqmlfolderlistmodelplugin.so
#5 0x00007fe8e285e290 in QThreadPrivate::start (arg=0x55582907ccb8) at
thread/qthread_unix.cpp:361
#6 0x00007fe8e55d496a in start_thread () from /lib64/libpthread.so.0
#7 0x00007fe8e15d591f in clone () from /lib64/libc.so.6
Thread 2 (Thread 0x7fe8c5da4700 (LWP 3740)):
#0 0x00007fe8e15c9d43 in poll () from /lib64/libc.so.6
#1 0x00007fe8d7fb31cb in ?? () from /usr/lib64/libglib-2.0.so.0
#2 0x00007fe8d7fb32ec in g_main_context_iteration () from
/usr/lib64/libglib-2.0.so.0
#3 0x00007fe8e2b2aa52 in QEventDispatcherGlib::processEvents
(this=0x7fe8c0000b20, flags=...) at kernel/qeventdispatcher_glib.cpp:422
#4 0x00007fe8e2a9c5ff in QEventLoop::processEvents (this=0x7fe8c5da3cb0,
flags=...) at kernel/qeventloop.cpp:138
#5 0x00007fe8e2a9c8fd in QEventLoop::exec (this=0x7fe8c5da3cb0, flags=...) at
kernel/qeventloop.cpp:225
#6 0x00007fe8e285b62d in QThread::exec (this=0x7fe8e4ccad80 <(anonymous
namespace)::Q_QGS__q_manager::innerFunction()::holder>) at
thread/qthread.cpp:531
#7 0x00007fe8e4a1e171 in QDBusConnectionManager::run (this=0x7fe8e4ccad80
<(anonymous namespace)::Q_QGS__q_manager::innerFunction()::holder>) at
qdbusconnection.cpp:178
#8 0x00007fe8e285e290 in QThreadPrivate::start (arg=0x7fe8e4ccad80 <(anonymous
namespace)::Q_QGS__q_manager::innerFunction()::holder>) at
thread/qthread_unix.cpp:361
#9 0x00007fe8e55d496a in start_thread () from /lib64/libpthread.so.0
#10 0x00007fe8e15d591f in clone () from /lib64/libc.so.6
Thread 1 (Thread 0x7fe8ed3b9880 (LWP 3739)):
#0 0x00007fe8e2ae4040 in QMetaObject::disconnect (sender=0x555829791780,
signal_index=-1, receiver=0x555828d290c0, method_index=6) at
kernel/qobject.cpp:3344
---Type <return> to continue, or q <return> to quit---
#1 0x00007fe8e4a5824e in QDBusAdaptorConnector::disconnectAllSignals
(this=0x555828d290c0, obj=0x555829791780) at qdbusabstractadaptor.cpp:252
#2 0x00007fe8e4a581ab in QDBusAdaptorConnector::addAdaptor
(this=0x555828d290c0, adaptor=0x555829c782b0) at qdbusabstractadaptor.cpp:232
#3 0x00007fe8e4a58394 in QDBusAdaptorConnector::polish (this=0x555828d290c0)
at qdbusabstractadaptor.cpp:272
#4 0x00007fe8e4a58b53 in QDBusAdaptorConnector::qt_static_metacall
(_o=0x555828d290c0, _c=QMetaObject::InvokeMetaMethod, _id=2, _a=0x555829c925e0)
at qdbusabstractadaptor.cpp:406
#5 0x00007fe8e2ade0b9 in QMetaCallEvent::placeMetaCall (this=0x555829c7d180,
object=0x555828d290c0) at kernel/qobject.cpp:520
#6 0x00007fe8e2adf083 in QObject::event (this=0x555828d290c0,
e=0x555829c7d180) at kernel/qobject.cpp:1260
#7 0x00007fe8e3c735d0 in QApplicationPrivate::notify_helper
(this=0x555828b6ce60, receiver=0x555828d290c0, e=0x555829c7d180) at
kernel/qapplication.cpp:3753
#8 0x00007fe8e3c7098d in QApplication::notify (this=0x7ffe3c051680,
receiver=0x555828d290c0, e=0x555829c7d180) at kernel/qapplication.cpp:3110
#9 0x00007fe8e2a9f863 in QCoreApplication::notifyInternal2
(receiver=0x555828d290c0, event=0x555829c7d180) at
kernel/qcoreapplication.cpp:1060
#10 0x00007fe8e2aa01fa in QCoreApplication::sendEvent (receiver=0x555828d290c0,
event=0x555829c7d180) at kernel/qcoreapplication.cpp:1450
#11 0x00007fe8e2aa0dc8 in QCoreApplicationPrivate::sendPostedEvents
(receiver=0x0, event_type=0, data=0x555828b22c30) at
kernel/qcoreapplication.cpp:1799
#12 0x00007fe8e2b246ae in QEventDispatcherUNIX::processEvents
(this=0x555828b67a00, flags=...) at kernel/qeventdispatcher_unix.cpp:466
#13 0x00007fe8c87882de in QUnixEventDispatcherQPA::processEvents
(this=0x555828b67a00, flags=...) at qunixeventdispatcher.cpp:63
#14 0x00007fe8e2a9c5ff in QEventLoop::processEvents (this=0x7ffe3c0514a0,
flags=...) at kernel/qeventloop.cpp:138
#15 0x00007fe8e2a9c8fd in QEventLoop::exec (this=0x7ffe3c0514a0, flags=...) at
kernel/qeventloop.cpp:225
#16 0x00007fe8e2aa003e in QCoreApplication::exec () at
kernel/qcoreapplication.cpp:1363
#17 0x00007fe8e3146434 in QGuiApplication::exec () at
kernel/qguiapplication.cpp:1779
#18 0x00007fe8e3c7022f in QApplication::exec () at kernel/qapplication.cpp:2910
#19 0x000055582711f4e0 in main (argc=4, argv=0x7ffe3c0518e8) at
/var/tmp/portage/kde-plasma/kwin-5.15.1/work/kwin-5.15.1/main_wayland.cpp:830
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