https://bugs.kde.org/show_bug.cgi?id=419178
--- Comment #5 from David Edmundson <k...@davidedmundson.co.uk> ---
Thread 1 "kwin_x11" received signal SIGSEGV, Segmentation fault.
0x00007ffff7cfe393 in KWin::Screens::physicalDpiX (this=0x0, screen=0) at
/home/david/projects/kde5/src/kde/workspace/kwin/screens.cpp:234
234 return size(screen).width() / physicalSize(screen).width() *
qreal(25.4);
(gdb) bt
#0 0x00007ffff7cfe393 in KWin::Screens::physicalDpiX(int) const (this=0x0,
screen=0) at /home/david/projects/kde5/src/kde/workspace/kwin/screens.cpp:234
#1 0x00007ffff7cef583 in KWin::ScreenEdges::ScreenEdges(QObject*)
(this=0x555555634c00, parent=0x5555556c35f0)
at /home/david/projects/kde5/src/kde/workspace/kwin/screenedge.cpp:730
#2 0x00007ffff7cef434 in KWin::ScreenEdges::create(QObject*)
(parent=0x5555556c35f0) at
/home/david/projects/kde5/src/kde/workspace/kwin/screenedge.cpp:711
#3 0x00007ffff7da52a6 in KWin::Workspace::Workspace(QString const&)
(this=0x5555556c35f0, sessionKey="")
at /home/david/projects/kde5/src/kde/workspace/kwin/workspace.cpp:162
#4 0x00007ffff7c8ae3e in KWin::Application::createWorkspace()
(this=0x7fffffffde68) at
/home/david/projects/kde5/src/kde/workspace/kwin/main.cpp:279
#5 0x0000555555560152 in
KWin::ApplicationX11::performStartup()::$_1::operator()()
const::{lambda()#1}::operator()() const (this=0x5555556c7430)
at /home/david/projects/kde5/src/kde/workspace/kwin/main_x11.cpp:252
#6 0x00005555555600f6 in QtPrivate::FunctorCall<QtPrivate::IndexesList<>,
QtPrivate::List<>, void,
KWin::ApplicationX11::performStartup()::$_1::operator()()
const::{lambda()#1}>::call({lambda()#1}&, void**) (f=..., arg=0x7fffffffd360)
at /opt/qt5/include/QtCore/qobjectdefs_impl.h:146
#7 0x00005555555600c1 in
QtPrivate::Functor<KWin::ApplicationX11::performStartup()::$_1::operator()()
const::{lambda()#1}, 0>::call<QtPrivate::List<>, void>({lambda()#1}&, void*,
{lambda()#1}&*) (f=..., arg=0x7fffffffd360) at
/opt/qt5/include/QtCore/qobjectdefs_impl.h:256
#8 0x000055555556006c in
QtPrivate::QFunctorSlotObject<KWin::ApplicationX11::performStartup()::$_1::operator()()
const::{lambda()#1}, 0, QtPrivate::List<>, void>::impl(int,
QtPrivate::QSlotObjectBase*, QObject*, void**, bool*) (which=1,
this_=0x5555556c7420, r=0x7fffffffde68, a=0x7fffffffd360, ret=0x0)
at /opt/qt5/include/QtCore/qobjectdefs_impl.h:439
#9 0x00007ffff34c37df in QtPrivate::QSlotObjectBase::call(QObject*, void**)
(this=0x5555556c7420, r=0x7fffffffde68, a=0x7fffffffd360)
at
../../include/QtCore/../../../../qt5/qtbase/src/corelib/kernel/qobjectdefs_impl.h:394
#10 0x00007ffff350506e in doActivate<false>(QObject*, int, void**)
(sender=0x55555562d810, signal_index=3, argv=0x7fffffffd360)
at /home/david/projects/qt5/qtbase/src/corelib/kernel/qobject.cpp:3870
#11 0x00007ffff34fea4b in QMetaObject::activate(QObject*, QMetaObject const*,
int, void**)
(sender=0x55555562d810, m=0x7ffff7fb01e0
<KWin::Platform::staticMetaObject>, local_signal_index=0, argv=0x0)
at /home/david/projects/qt5/qtbase/src/corelib/kernel/qobject.cpp:3930
#12 0x00007ffff7b051d2 in KWin::Platform::screensQueried()
(this=0x55555562d810) at kwin_autogen/EWIEGA46WW/moc_platform.cpp:318
#13 0x00007fffecd0df78 in KWin::X11StandalonePlatform::init()
(this=0x55555562d810)
at
/home/david/projects/kde5/src/kde/workspace/kwin/plugins/platforms/x11/standalone/x11_platform.cpp:108
#14 0x000055555555fcc0 in
KWin::ApplicationX11::performStartup()::$_1::operator()() const
(this=0x5555556341b0)
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