Created attachment 149794 [details]
New crash information added by DrKonqi

krunner (5.25.0) using Qt 5.15.4

I updated to 5.25 and still happens. if I press alt+space nothing happens.

-- Backtrace (Reduced):
#6  QObject::setProperty (this=this@entry=0x0, name=name@entry=0x556cc4823872 "runner", value=...) at kernel/qobject.cpp:4030
#7  0x0000556cc4820e2a in View::query (this=0x7ffdff84c660, term=...) at /usr/include/x86_64-linux-gnu/qt5/QtCore/qarraydata.h:257
#8  0x0000556cc481df7f in <lambda()>::operator() (__closure=0x7ffdff84c640) at ./krunner/main.cpp:95
#9  main (argc=<optimized out>, argv=<optimized out>) at ./krunner/main.cpp:101

That is weird, could you please post your ~/.config/krunnerrc file?

Maybe running KRunner with debug output gives us a bit more context:
QT_LOGGING_RULES="kf5.krunner*=true" krunner --replace

(In reply to Alexander Lohnau from comment #2)
> That is weird, could you please post your ~/.config/krunnerrc file?
sure:

[General]
FreeFloating=true

[PlasmaRunnerManager]
migrated=true

[Plugins]
baloosearchEnabled=true
bookmarksEnabled=false
browserhistoryEnabled=false


> QT_LOGGING_RULES="kf5.krunner*=true" krunner --replace
running that just gave:
File name empty!
No component for QUrl("")

if I press crtl+alt:
QCommandLineParser: argument list cannot be empty, it should contain at least the executable name

I see, what is your Global Theme?

(In reply to Alexander Lohnau from comment #4)
> I see, what is your Global Theme?

Breeze Light.
may be relevant that the preview image doesn't show in settings.

Yes, I get the feeling that the installation is somehow incomplete. Does switching to breeze dark (if it has a preview image) make any difference?

(In reply to Alexander Lohnau from comment #6)
> Yes, I get the feeling that the installation is somehow incomplete. Does
> switching to breeze dark (if it has a preview image) make any difference?
It has the preview image but the same happens.

Application: KRunner (krunner), signal: Segmentation fault

[New LWP 25300]
[New LWP 25301]
[Thread debugging using libthread_db enabled]
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
0x00007f99c028399f in __GI___poll (fds=0x7ffcc858a4f8, nfds=1, timeout=1000) at ../sysdeps/unix/sysv/linux/poll.c:29
__preamble__
[Current thread is 1 (Thread 0x7f99bbefb9c0 (LWP 25298))]

Thread 3 (Thread 0x7f99b1d3b700 (LWP 25301)):
#0  __libc_enable_asynccancel () at ../sysdeps/unix/sysv/linux/x86_64/cancellation.S:56
#1  0x00007f99c0283987 in __GI___poll (fds=0x7f99a8004a60, nfds=1, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
#2  0x00007f99bebe636e in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f99bebe64a3 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f99c0854c3b in QEventDispatcherGlib::processEvents (this=0x7f99a8000b60, flags=...) at kernel/qeventdispatcher_glib.cpp:425
#5  0x00007f99c07f8e5b in QEventLoop::exec (this=this@entry=0x7f99b1d3abc0, flags=..., flags@entry=...) at ../../include/QtCore/../../src/corelib/global/qflags.h:141
#6  0x00007f99c0612462 in QThread::exec (this=this@entry=0x55da6c262490) at ../../include/QtCore/../../src/corelib/global/qflags.h:121
#7  0x00007f99c1eca689 in QQmlThreadPrivate::run (this=0x55da6c262490) at qml/ftw/qqmlthread.cpp:155
#8  0x00007f99c0613643 in QThreadPrivate::start (arg=0x55da6c262490) at thread/qthread_unix.cpp:331
#9  0x00007f99bf793609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#10 0x00007f99c0290133 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 2 (Thread 0x7f99ba404700 (LWP 25300)):
#0  0x00007f99c028399f in __GI___poll (fds=0x7f99ac004e60, nfds=1, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007f99bebe636e in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f99bebe64a3 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f99c0854c3b in QEventDispatcherGlib::processEvents (this=0x7f99ac000b60, flags=...) at kernel/qeventdispatcher_glib.cpp:425
#4  0x00007f99c07f8e5b in QEventLoop::exec (this=this@entry=0x7f99ba403bb0, flags=..., flags@entry=...) at ../../include/QtCore/../../src/corelib/global/qflags.h:141
#5  0x00007f99c0612462 in QThread::exec (this=<optimized out>) at ../../include/QtCore/../../src/corelib/global/qflags.h:121
#6  0x00007f99c1962f4b in ?? () from /lib/x86_64-linux-gnu/libQt5DBus.so.5
#7  0x00007f99c0613643 in QThreadPrivate::start (arg=0x7f99c19e6d80) at thread/qthread_unix.cpp:331
#8  0x00007f99bf793609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#9  0x00007f99c0290133 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 1 (Thread 0x7f99bbefb9c0 (LWP 25298)):
[KCrash Handler]
#4  0x00007f99c082fcfe in qGetPtrHelper<QScopedPointer<QObjectData, QScopedPointerDeleter<QObjectData> > > (ptr=...) at kernel/qobject.cpp:4029
#5  QObject::d_func (this=<optimized out>) at ../../include/QtCore/../../src/corelib/kernel/qobject.h:132
#6  QObject::setProperty (this=this@entry=0x0, name=name@entry=0x55da6a0d8872 "runner", value=...) at kernel/qobject.cpp:4030
#7  0x000055da6a0d5e2a in View::query (this=0x7ffcc858b330, term=...) at /usr/include/x86_64-linux-gnu/qt5/QtCore/qarraydata.h:257
#8  0x000055da6a0d2f7f in <lambda()>::operator() (__closure=0x7ffcc858b310) at ./krunner/main.cpp:95
#9  main (argc=<optimized out>, argv=<optimized out>) at ./krunner/main.cpp:101
[Inferior 1 (process 25298) detached]

What does the following command give:
>find /usr/share/plasma/look-and-feel/ -name RunCommand.qml

(In reply to Alexander Lohnau from comment #8)
> What does the following command give:
> >find /usr/share/plasma/look-and-feel/ -name RunCommand.qml

returns the path /usr/share/plasma/look-and-feel/org.kde.breeze.desktop/contents/runcommand/RunCommand.qml

Turns out it was caused by a problem (breeze global theme missing) on my system and is resolved now :)