Hey all,
open file-associations in KDE menu -> choose no matter what type -> click an icon:
screenshot:

When I click "Other icons", then this window of File Type Editor crashs.

KSystemlog shows first the error:

Code: Select all

23.10.18 22:38   kernel   kcmshell5[7823]: segfault at 2200000004 ip 00007f2b49cc5732 sp 00007fffebbef040 error 4 in libQt5Core.so.5.11.2[7f2b49c0f000+2ac000]
23.10.18 22:38   systemd   Started Process Core Dump (PID 7826/UID 0).
23.10.18 22:38   plasmashell   file:///usr/share/plasma/plasmoids/org.kde.plasma.taskmanager/contents/ui/Task.qml:342: Unable to assign [undefined] to int
23.10.18 22:38   kwin_x11   qt.qpa.xcb: QXcbConnection: XCB error: 3 (BadWindow), sequence: 23793, resource id: 77594630, major code: 15 (QueryTree), minor code: 0
23.10.18 22:38   kwin_x11   qt.qpa.xcb: QXcbConnection: XCB error: 3 (BadWindow), sequence: 23842, resource id: 77594641, major code: 15 (QueryTree), minor code: 0
23.10.18 22:38   systemd-coredump   Process 7823 (kcmshell5) of user 1000 dumped core.

Stack trace of thread 7823:
#0  0x00007f2b49cc5732 _ZNK7QString3midEii (libQt5Core.so.5)
#1  0x00007f2b4900d3cd n/a (libKF5IconThemes.so.5)
#2  0x00007f2b49010e71 n/a (libKF5IconThemes.so.5)
#3  0x00007f2b4900f63f n/a (libKF5IconThemes.so.5)
#4  0x00007f2b49e2ba7c _ZN11QMetaObject8activateEP7QObjectiiPPv (libQt5Core.so.5)
#5  0x00007f2b4a864803 _ZN15QAbstractButton7clickedEb (libQt5Widgets.so.5)
#6  0x00007f2b4a864a1c n/a (libQt5Widgets.so.5)
#7  0x00007f2b4a865e12 n/a (libQt5Widgets.so.5)
#8  0x00007f2b4a865fe6 _ZN15QAbstractButton17mouseReleaseEventEP11QMouseEvent (libQt5Widgets.so.5)
#9  0x00007f2b4a7b9658 _ZN7QWidget5eventEP6QEvent (libQt5Widgets.so.5)
#10 0x00007f2b4a779e14 _ZN19QApplicationPrivate13notify_helperEP7QObjectP6QEvent (libQt5Widgets.so.5)
#11 0x00007f2b4a78192a _ZN12QApplication6notifyEP7QObjectP6QEvent (libQt5Widgets.so.5)
#12 0x00007f2b49e01c39 _ZN16QCoreApplication15notifyInternal2EP7QObjectP6QEvent (libQt5Core.so.5)
#13 0x00007f2b4a780c11 _ZN19QApplicationPrivate14sendMouseEventEP7QWidgetP11QMouseEventS1_S1_PS1_R8QPointerIS0_Eb (libQt5Widgets.so.5)
#14 0x00007f2b4a7d498c n/a (libQt5Widgets.so.5)
#15 0x00007f2b4a7d75d5 n/a (libQt5Widgets.so.5)
#16 0x00007f2b4a779e14 _ZN19QApplicationPrivate13notify_helperEP7QObjectP6QEvent (libQt5Widgets.so.5)
#17 0x00007f2b4a7816e1 _ZN12QApplication6notifyEP7QObjectP6QEvent (libQt5Widgets.so.5)
#18 0x00007f2b49e01c39 _ZN16QCoreApplication15notifyInternal2EP7QObjectP6QEvent (libQt5Core.so.5)
#19 0x00007f2b4a1aa0dc _ZN22QGuiApplicationPrivate17processMouseEventEPN29QWindowSystemInterfacePrivate10MouseEventE (libQt5Gui.so.5)
#20 0x00007f2b4a1ac066 _ZN22QGuiApplicationPrivate24processWindowSystemEventEPN29QWindowSystemInterfacePrivate17WindowSystemEventE (libQt5Gui.so.5)
#21 0x00007f2b4a185a3c _ZN22QWindowSystemInterface22sendWindowSystemEventsE6QFlagsIN10QEventLoop17ProcessEventsFlagEE (libQt5Gui.so.5)
#22 0x00007f2b43904e1d n/a (libQt5XcbQpa.so.5)
#23 0x00007f2b49e008cc _ZN10QEventLoop4execE6QFlagsINS_17ProcessEventsFlagEE (libQt5Core.so.5)
#24 0x00007f2b49e08bc6 _ZN16QCoreApplication4execEv (libQt5Core.so.5)
#25 0x00007f2b4b334dfd kdemain (libkdeinit5_kcmshell5.so)
#26 0x00007f2b4b18c223 __libc_start_main (libc.so.6)
#27 0x00005613d8a6105e _start (kcmshell5)

Stack trace of thread 7824:
#0  0x00007f2b4b258c21 __poll (libc.so.6)
#1  0x00007f2b48744630 n/a (libxcb.so.1)
#2  0x00007f2b487462db xcb_wait_for_event (libxcb.so.1)
#3  0x00007f2b4386ec5a n/a (libQt5XcbQpa.so.5)
#4  0x00007f2b49c53f65 n/a (libQt5Core.so.5)
#5  0x00007f2b48a9ca9d start_thread (libpthread.so.0)
#6  0x00007f2b4b263b23 __clone (libc.so.6)

Stack trace of thread 7825:
#0  0x00007f2b4b258c21 __poll (libc.so.6)
#1  0x00007f2b47b27ee0 n/a (libglib-2.0.so.0)
#2  0x00007f2b47b27fce g_main_context_iteration (libglib-2.0.so.0)
#3  0x00007f2b49e54fc9 _ZN20QEventDispatcherGlib13processEventsE6QFlagsIN10QEventLoop17ProcessEventsFlagEE (libQt5Core.so.5)
#4  0x00007f2b49e008cc _ZN10QEventLoop4execE6QFlagsINS_17ProcessEventsFlagEE (libQt5Core.so.5)
#5  0x00007f2b49c49eb9 _ZN7QThread4execEv (libQt5Core.so.5)
#6  0x00007f2b4ad3aba6 n/a (libQt5DBus.so.5)
#7  0x00007f2b49c53f65 n/a (libQt5Core.so.5)
#8  0x00007f2b48a9ca9d start_thread (libpthread.so.0)
#9  0x00007f2b4b263b23 __clone (libc.so.6)



How can I fix this issue? Who has the same issue?

Linux Kernel: 4.14.78-1-MANJARO or 4.18.16-1-MANJARO
Desktop: KDE 5.51.0 Plasma 5.14.1
GeForce GTX 760 OEM, nvidia driver v410.66
Display: x11 server: X.Org 1.20.2

I uninstalled the package “gksu” from AUR, then the issue was fixed. Omg