https://bugs.kde.org/show_bug.cgi?id=405978
Bug ID: 405978
Summary: Crash when changing scaling
Product: kwin
Version: git master
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: ---
SUMMARY
After disconnecting a display, kwin/kscreen chose the wrong scaling. I changed
it to fix it and everything crashed.
OBSERVED RESULT
#0 0x00007f8220d018b8 in () at /usr/lib/libwayland-server.so.0
#1 0x00007f8220d01aff in wl_resource_post_error () at
/usr/lib/libwayland-server.so.0
#2 0x00007f8220d03279 in () at /usr/lib/libwayland-server.so.0
#3 0x00007f8220d047f2 in wl_event_loop_dispatch () at
/usr/lib/libwayland-server.so.0
#4 0x00007f82269705fe in KWayland::Server::Display::Private::dispatch()
(this=0x555634153f30) at
/home/apol/devel/frameworks/kwayland/src/server/display.cpp:146
#5 0x00007f82269763b8 in
KWayland::Server::Display::Private::installSocketNotifier()::$_0::operator()()
const (this=0x555634137d90) at
/home/apol/devel/frameworks/kwayland/src/server/display.cpp:114
#6 0x00007f8226976366 in QtPrivate::FunctorCall<QtPrivate::IndexesList<>,
QtPrivate::List<>, void,
KWayland::Server::Display::Private::installSocketNotifier()::$_0>::call(KWayland::Server::Display::Private::installSocketNotifier()::$_0&,
void**)
(f=..., arg=0x7fff47c6f1e0) at
/home/apol/devel/kde5/include/QtCore/qobjectdefs_impl.h:146
--Type <RET> for more, q to quit, c to continue without paging--
#7 0x00007f8226976331 in
QtPrivate::Functor<KWayland::Server::Display::Private::installSocketNotifier()::$_0,
0>::call<QtPrivate::List<>,
void>(KWayland::Server::Display::Private::installSocketNotifier()::$_0&, void*,
void**) (f=..., arg=0x7fff47c6f1e0)
at /home/apol/devel/kde5/include/QtCore/qobjectdefs_impl.h:256
#8 0x00007f82269762dd in
QtPrivate::QFunctorSlotObject<KWayland::Server::Display::Private::installSocketNotifier()::$_0,
0, QtPrivate::List<>, void>::impl(int, QtPrivate::QSlotObjectBase*, QObject*,
void**, bool*)
(which=1, this_=0x555634137d80, r=0x555634142dd0, a=0x7fff47c6f1e0,
ret=0x0) at /home/apol/devel/kde5/include/QtCore/qobjectdefs_impl.h:439
#9 0x00007f8224207da8 in QtPrivate::QSlotObjectBase::call(QObject*, void**)
(a=<optimized out>, r=0x555634142dd0, this=0x555634137d80) at
../../include/QtCore/../../../../../devel/frameworks/qt5/qtbase/src/corelib/kernel/qobjectdefs_impl.h:394
#10 0x00007f8224207da8 in QMetaObject::activate(QObject*, int, int, void**)
(sender=sender@entry=0x55563413b050, signalOffset=<optimized out>,
local_signal_index=local_signal_index@entry=0, argv=argv@entry=0x7fff47c6f1e0)
at
/home/apol/devel/frameworks/qt5/qtbase/src/corelib/kernel/qobject.cpp:3774
#11 0x00007f8224208205 in QMetaObject::activate(QObject*, QMetaObject const*,
int, void**) (sender=sender@entry=0x55563413b050, m=m@entry=0x7f82246acc00
<QSocketNotifier::staticMetaObject>,
local_signal_index=local_signal_index@entry=0, argv=argv@entry=0x7fff47c6f1e0)
at
/home/apol/devel/frameworks/qt5/qtbase/src/corelib/kernel/qobject.cpp:3646
#12 0x00007f82242148da in QSocketNotifier::activated(int,
QSocketNotifier::QPrivateSignal) (this=this@entry=0x55563413b050,
_t1=<optimized out>, _t2=...) at .moc/moc_qsocketnotifier.cpp:140
#13 0x00007f8224214d91 in QSocketNotifier::event(QEvent*) (this=0x55563413b050,
e=0x7fff47c6f4f0) at
/home/apol/devel/frameworks/qt5/qtbase/src/corelib/kernel/qsocketnotifier.cpp:266
#14 0x00007f82251d121d in QApplicationPrivate::notify_helper(QObject*, QEvent*)
(this=this@entry=0x5556341024b0, receiver=receiver@entry=0x55563413b050,
e=e@entry=0x7fff47c6f4f0) at
/home/apol/devel/frameworks/qt5/qtbase/src/widgets/kernel/qapplication.cpp:3736
#15 0x00007f82251d8f9b in QApplication::notify(QObject*, QEvent*)
(this=0x7fff47c6fee0, receiver=0x55563413b050, e=0x7fff47c6f4f0) at
/home/apol/devel/frameworks/qt5/qtbase/src/widgets/kernel/qapplication.cpp:3093
#16 0x00007f82241d4ffb in QCoreApplication::notifyInternal2(QObject*, QEvent*)
(receiver=0x55563413b050, event=0x7fff47c6f4f0) at
/home/apol/devel/frameworks/qt5/qtbase/src/corelib/kernel/qcoreapplication.cpp:1060
#17 0x00007f82241d5256 in QCoreApplication::sendEvent(QObject*, QEvent*)
(receiver=<optimized out>, event=<optimized out>) at
/home/apol/devel/frameworks/qt5/qtbase/src/corelib/kernel/qcoreapplication.cpp:1450
#18 0x00007f8224234bf1 in
QEventDispatcherUNIXPrivate::activateSocketNotifiers()
(this=this@entry=0x555634115a20) at
/home/apol/devel/frameworks/qt5/qtbase/src/corelib/kernel/qeventdispatcher_unix.cpp:304
#19 0x00007f8224235112 in
QEventDispatcherUNIX::processEvents(QFlags<QEventLoop::ProcessEventsFlag>)
(this=<optimized out>, flags=...) at
/home/apol/devel/frameworks/qt5/qtbase/src/corelib/kernel/qeventdispatcher_unix.cpp:509
#20 0x00007f821b4499e3 in
QUnixEventDispatcherQPA::processEvents(QFlags<QEventLoop::ProcessEventsFlag>)
(this=<optimized out>, flags=...) at
/home/apol/devel/frameworks/qt5/qtbase/src/platformsupport/eventdispatchers/qunixeventdispatcher.cpp:63
#21 0x00007f82241d2ea7 in
QEventLoop::processEvents(QFlags<QEventLoop::ProcessEventsFlag>)
(this=this@entry=0x7fff47c6f680, flags=..., flags@entry=...) at
/usr/include/c++/8.2.1/bits/atomic_base.h:707
#22 0x00007f82241d32ff in
QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>)
(this=this@entry=0x7fff47c6f680, flags=flags@entry=...) at
../../include/QtCore/../../../../../devel/frameworks/qt5/qtbase/src/corelib/global/qflags.h:122
#23 0x00007f82241dd458 in QCoreApplication::exec() () at
../../include/QtCore/../../../../../devel/frameworks/qt5/qtbase/src/corelib/global/qflags.h:120
#24 0x00007f82247c589a in QGuiApplication::exec() () at
/home/apol/devel/frameworks/qt5/qtbase/src/gui/kernel/qguiapplication.cpp:1779
#25 0x00007f82251d118b in QApplication::exec() () at
/home/apol/devel/frameworks/qt5/qtbase/src/widgets/kernel/qapplication.cpp:2893
#26 0x0000555633a08a38 in main(int, char**) (argc=4, argv=0x7fff47c700f8) at
/home/apol/devel/frameworks/kwin/main_wayland.cpp:664
SOFTWARE/OS VERSIONS
Linux/KDE Plasma: ArchLinux
(available in About System)
KDE Plasma Version: master
KDE Frameworks Version: master
Qt Version: 5.12
ADDITIONAL INFORMATION
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