https://bugs.kde.org/show_bug.cgi?id=450531
            Bug ID: 450531
           Summary: Portal crashed after changing display scale to 125% on
                    X11, logout and login
           Product: xdg-desktop-portal-kde
           Version: 5.24.1
          Platform: Archlinux Packages
                OS: Linux
            Status: REPORTED
          Severity: crash
          Priority: NOR
         Component: general
          Assignee: plasma-b...@kde.org
          Reporter: bugsefor...@gmx.com
                CC: aleix...@kde.org, jgrul...@redhat.com, n...@kde.org
  Target Milestone: ---

SUMMARY
I changed display scale from 100% to 125% on X11, logged out, started X11
session again and got a black screen with mouse pointer. coredumpctl command
revealed xdg-desktop-portal-kde crash.

SOFTWARE/OS VERSIONS
Operating System: Arch Linux
KDE Plasma Version: 5.24.1
KDE Frameworks Version: 5.91.0
Qt Version: 5.15.2
Kernel Version: 5.16.10-arch1-1 (64-bit)
Graphics Platform: X11


Thread 1 (Thread 0x7fc37b040a80 (LWP 4778)):
#0  0x00007fc37f5ed34c in __pthread_kill_implementation () from
/usr/lib/libc.so.6
#1  0x00007fc37f5a04b8 in raise () from /usr/lib/libc.so.6
#2  0x00007fc37f58a534 in abort () from /usr/lib/libc.so.6
#3  0x00007fc37fa2dee4 in qt_message_fatal (message=<synthetic pointer>...,
context=...) at global/qlogging.cpp:1914
#4  QMessageLogger::fatal (this=this@entry=0x7ffc55380870,
msg=msg@entry=0x7fc380c07f69 "%s") at global/qlogging.cpp:893
#5  0x00007fc3807a2bc5 in init_platform (argv=<optimized out>,
argc=@0x7ffc55380860: 1817763088, platformThemeName=...,
platformPluginPath=..., pluginNamesWithArguments=...) at
kernel/qguiapplication.cpp:1254
#6  QGuiApplicationPrivate::createPlatformIntegration (this=0x55b06c58bce0) at
kernel/qguiapplication.cpp:1481
#7  0x00007fc3807a31e9 in QGuiApplicationPrivate::createEventDispatcher
(this=<optimized out>) at kernel/qguiapplication.cpp:1498
#8  0x00007fc37fc2067b in QCoreApplicationPrivate::init
(this=this@entry=0x55b06c58bce0) at kernel/qcoreapplication.cpp:835
#9  0x00007fc3807a32a7 in QGuiApplicationPrivate::init
(this=this@entry=0x55b06c58bce0) at kernel/qguiapplication.cpp:1527
#10 0x00007fc38138337e in QApplicationPrivate::init (this=0x55b06c58bce0) at
kernel/qapplication.cpp:513
#11 0x00007fc3813834a4 in QApplication::QApplication (this=<optimized out>,
argc=<optimized out>, argv=<optimized out>, _internal=<optimized out>,
this=<optimized out>, argc=<optimized out>, argv=<optimized out>,
_internal=<optimized out>) at kernel/qapplication.cpp:501
#12 0x000055b06b5e10d1 in main (argc=<optimized out>, argv=0x7ffc55380c88) at
/usr/src/debug/xdg-desktop-portal-kde-5.24.1/src/xdg-desktop-portal-kde.cpp:25

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