.
Thread 2 (Thread 0x7efd53c1f6c0 (LWP 3670)):
#0  0x00007efd57e5dd7f in __GI___poll (fds=0x7efd44001370, nfds=3, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
        sc_ret = -516
        sc_cancel_oldtype = 0
        sc_ret = <optimized out>
#1  0x00007efd572d610f in g_main_context_poll_unlocked (priority=2147483647, n_fds=3, fds=0x7efd44001370, timeout=<optimized out>, context=0x7efd44000c30) at ../../../glib/gmain.c:4653
        ret = <optimized out>
        errsv = <optimized out>
        poll_func = 0x7efd57280e70 <g_poll>
        poll_func = <optimized out>
        ret = <optimized out>
        errsv = <optimized out>
#2  g_main_context_iterate_unlocked.isra.0 (context=context@entry=0x7efd44000c30, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at ../../../glib/gmain.c:4344
        max_priority = 2147483647
        timeout = -1
        some_ready = <optimized out>
        nfds = 3
        allocated_nfds = 3
        fds = 0x7efd44001370
        begin_time_nsec = 0
#3  0x00007efd57278d80 in g_main_context_iteration (context=0x7efd44000c30, may_block=1) at ../../../glib/gmain.c:4414
        retval = <optimized out>
#4  0x00007efd584e8daa in QEventDispatcherGlib::processEvents (this=0x7efd44000b70, flags=...) at kernel/qeventdispatcher_glib.cpp:423
        d = 0x7efd44000b90
        canWait = true
        savedFlags = {i = 0}
        result = <optimized out>
#5  0x00007efd5848c15b in QEventLoop::exec (this=this@entry=0x7efd53c1ed10, flags=..., flags@entry=...) at ../../include/QtCore/../../src/corelib/global/qflags.h:69
        d = 0x7efd440012b0
        threadData = <optimized out>
        locker = {val = 94069045242440}
        ref = <optimized out>
        app = <optimized out>
#6  0x00007efd5829ac52 in QThread::exec (this=this@entry=0x7efd58ebdd80 <(anonymous namespace)::Q_QGS__q_manager::innerFunction()::holder>) at ../../include/QtCore/../../src/corelib/global/qflags.h:121
        d = 0x558e2806a9f0
        locker = {val = 94069045242440}
        eventLoop = {<QObject> = {_vptr.QObject = 0x7efd587318c8 <vtable for QEventLoop+16>, static staticMetaObject = {d = {superdata = {direct = 0x0}, stringdata = 0x7efd586659c0 <qt_meta_stringdata_QObject>, data = 0x7efd586658a0 <qt_meta_data_QObject>, static_metacall = 0x7efd584c5150 <QObject::qt_static_metacall(QObject*, QMetaObject::Call, int, void**)>, relatedMetaObjects = 0x0, extradata = 0x0}}, d_ptr = {d = 0x7efd440012b0}, static staticQtMetaObject = {d = {superdata = {direct = 0x0}, stringdata = 0x7efd58668960 <qt_meta_stringdata_Qt>, data = 0x7efd58665ae0 <qt_meta_data_Qt>, static_metacall = 0x0, relatedMetaObjects = 0x0, extradata = 0x0}}}, static staticMetaObject = {d = {superdata = {direct = 0x7efd58729180 <QObject::staticMetaObject>}, stringdata = 0x7efd58661b60 <qt_meta_stringdata_QEventLoop>, data = 0x7efd58661b00 <qt_meta_data_QEventLoop>, static_metacall = 0x7efd5848be80 <QEventLoop::qt_static_metacall(QObject*, QMetaObject::Call, int, void**)>, relatedMetaObjects = 0x0, extradata = 0x0}}}
        returnCode = <optimized out>
#7  0x00007efd58e441bb in QDBusConnectionManager::run (this=0x7efd58ebdd80 <(anonymous namespace)::Q_QGS__q_manager::innerFunction()::holder>) at qdbusconnection.cpp:179
        locker = <optimized out>
#8  0x00007efd5829beb1 in operator() (__closure=<optimized out>) at thread/qthread_unix.cpp:351
        thr = 0x7efd58ebdd80 <(anonymous namespace)::Q_QGS__q_manager::innerFunction()::holder>
        data = 0x558e28073420
        arg = <optimized out>
        arg = <optimized out>
        thr = <optimized out>
        data = <optimized out>
        locker = <optimized out>
#9  (anonymous namespace)::terminate_on_exception<QThreadPrivate::start(void*)::<lambda()> > (t=...) at thread/qthread_unix.cpp:288
No locals.
#10 QThreadPrivate::start (arg=0x7efd58ebdd80 <(anonymous namespace)::Q_QGS__q_manager::innerFunction()::holder>) at thread/qthread_unix.cpp:311
        __clframe = {__cancel_routine = 0x7efd5829b6e0 <QThreadPrivate::finish(void*)>, __cancel_arg = 0x7efd58ebdd80 <(anonymous namespace)::Q_QGS__q_manager::innerFunction()::holder>, __do_it = 1, __cancel_type = <optimized out>}
#11 0x00007efd57ddd18a in start_thread (arg=<optimized out>) at ./nptl/pthread_create.c:444
        ret = <optimized out>
        pd = <optimized out>
        out = <optimized out>
        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {139626565979808, 3432433273322802199, -248, 2, 140728490348656, 139626488655872, -3289646003839103977, -3289637240948192233}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0, canceltype = 0}}}
        not_first_call = <optimized out>
#12 0x00007efd57e6bbd0 in clone3 () at ../sysdeps/unix/sysv/linux/x86_64/clone3.S:81
No locals.
.
Thread 1 (Thread 0x7efd54d47cc0 (LWP 3668)):
#0  0x00007efd533fb87f in XRandRCrtc::update (this=0x558e2807e490) at /usr/src/libkscreen-4:5.27.7-0ubuntu1/backends/xrandr/xrandrcrtc.cpp:90
        crtcInfo = {_vptr.Wrapper = <optimized out>, m_retrieved = false, m_cookie = {sequence = 0}, m_window = <optimized out>, m_reply = 0x0}
        possible = <optimized out>
        outputs = <optimized out>
#1  0x00007efd533fdba7 in XRandRConfig::enableOutput (this=this@entry=0x558e27ece6d0, kscreenOutput=...) at /usr/src/libkscreen-4:5.27.7-0ubuntu1/backends/xrandr/xrandrconfig.cpp:533
        crtc = 0x558e2807e490
        __for_range = <optimized out>
        __for_begin = <optimized out>
        __for_end = <optimized out>
        freeCrtc = 0x0
        xOutput = <optimized out>
        modeId = <optimized out>
#2  0x00007efd534011c4 in XRandRConfig::applyKScreenConfig (this=0x558e27ece6d0, config=...) at /usr/src/libkscreen-4:5.27.7-0ubuntu1/backends/xrandr/xrandrconfig.cpp:308
        output = @0x558e2809d0c0: {value = 0x558e280b1ec0, d = 0x558e280b1ee0}
        __for_range = @0x7ffde7ad4a60: {d = 0x558e28093750}
        __for_begin = <optimized out>
        __for_end = <optimized out>
        kscreenOutputs = {d = 0x558e280a2440}
        newScreenSize = {wd = 5760, ht = 1080}
        currentScreenSize = {wd = 5760, ht = 1080}
        intermediateScreenSize = {wd = 5760, ht = 1080}
        neededCrtcs = <optimized out>
        prioritiesChange = {d = 0x558e28092d10}
        prioritiesDiffer = <optimized out>
        toDisable = {d = 0x558e28096e10}
        toEnable = {d = 0x558e28093750}
        toChange = {d = 0x558e280a2f60}
        kscreenScreen = {value = 0x558e28094920, d = 0x558e28099090}
        screenResources = {d = 0x558e280ba100}
        grabber = <optimized out>
        forceScreenSizeUpdate = <optimized out>
#3  0x00007efd53401f53 in XRandR::setConfig (this=<optimized out>, config=...) at /usr/src/libkscreen-4:5.27.7-0ubuntu1/backends/xrandr/xrandr.cpp:191
No locals.
#4  XRandR::setConfig (this=<optimized out>, config=...) at /usr/src/libkscreen-4:5.27.7-0ubuntu1/backends/xrandr/xrandr.cpp:184
        qt_category_enabled = <optimized out>
        qt_category_enabled = <optimized out>
#5  0x0000558e26417ab6 in BackendDBusWrapper::setConfig (configMap=..., this=0x558e28085dc0) at /usr/src/libkscreen-4:5.27.7-0ubuntu1/src/backendlauncher/backenddbuswrapper.cpp:70
        config = {value = 0x558e2809f030, d = 0x558e280a5730}
        obj = {dead = 0xb, o = {d = 0x7efd44015400}}
        config = <optimized out>
        obj = <optimized out>
        qt_category_enabled = <optimized out>
#6  BackendAdaptor::setConfig (in0=..., this=<optimized out>) at /usr/src/libkscreen-4:5.27.7-0ubuntu1/obj-x86_64-linux-gnu/src/backendlauncher/backendadaptor.cpp:51
No locals.
#7  BackendAdaptor::qt_static_metacall (_o=<optimized out>, _id=<optimized out>, _a=0x7ffde7ad4d40, _c=<optimized out>) at /usr/src/libkscreen-4:5.27.7-0ubuntu1/obj-x86_64-linux-gnu/src/backendlauncher/backendadaptor.moc:115
        _r = {d = 0xb}
        _t = <optimized out>
        result = <optimized out>
#8  0x0000558e26418681 in BackendAdaptor::qt_static_metacall (_a=0x7ffde7ad4d40, _id=3, _c=QMetaObject::InvokeMetaMethod, _o=0x558e2807ee20) at /usr/src/libkscreen-4:5.27.7-0ubuntu1/obj-x86_64-linux-gnu/src/backendlauncher/backendadaptor.moc:104
        _t = <optimized out>
        _r = <optimized out>
        _r = <optimized out>
        _r = <optimized out>
        result = <optimized out>
#9  BackendAdaptor::qt_metacall (this=0x558e2807ee20, _c=QMetaObject::InvokeMetaMethod, _id=3, _a=0x7ffde7ad4d40) at /usr/src/libkscreen-4:5.27.7-0ubuntu1/obj-x86_64-linux-gnu/src/backendlauncher/backendadaptor.moc:161
No locals.
#10 0x00007efd58e522bb in QDBusConnectionPrivate::deliverCall (this=this@entry=0x7efd440013d0, object=object@entry=0x558e2807ee20, msg=..., metaTypes=..., slotIdx=<optimized out>) at qdbusintegrator.cpp:1001
        context = {connection = {d = 0x7efd440013d0}, message = @0x558e27ed74e0}
        old = 0x0
        ptr = <optimized out>
        params = {a = 10, s = 2, ptr = 0x7ffde7ad4d40, {array = "@\266\a(\216U\000\000\000T\001D\375~\000\0002\004", '\000' <repeats 14 times>, "\030N\255\347\375\177\000\0002\004", '\000' <repeats 14 times>, "]kJX\375~\000\000\252\000\004\0002\004\000\000@N\255\347\375\177\000", q_for_alignment_1 = 94069045311040, q_for_alignment_2 = 4.6476283625268463e-310}}
        auxParameters = {<QListSpecialMethods<QVariant>> = {<No data fields>}, {p = {static shared_null = {ref = {atomic = {_q_value = {<std::__atomic_base<int>> = {static _S_alignment = 4, _M_i = -1}, static is_always_lock_free = true}}}, alloc = 0, begin = 0, end = 0, array = {0x0}}, d = 0x558e28093640}, d = 0x558e28093640}}
        i = <optimized out>
        pCount = <optimized out>
        numMetaTypes = <optimized out>
        outputArgs = {<QListSpecialMethods<QVariant>> = {<No data fields>}, {p = {static shared_null = {ref = {atomic = {_q_value = {<std::__atomic_base<int>> = {static _S_alignment = 4, _M_i = -1}, static is_always_lock_free = true}}}, alloc = 0, begin = 0, end = 0, array = {0x0}}, d = 0x558e28073b80}, d = 0x558e28073b80}}
        null = 0x0
        fail = <optimized out>
#11 0x00007efd58e55d30 in QDBusConnectionPrivate::activateCall (this=this@entry=0x7efd440013d0, object=0x558e2807ee20, flags=flags@entry=273, msg=...) at qdbusintegrator.cpp:904
        mo = <optimized out>
        memberName = {d = 0x558e280d2ae0}
        slotData = {flags = 273, slotIdx = 8, metaTypes = {d = 0x7efd440112e0}}
        slotCache = {hash = {<QHash<QString, QDBusSlotCache::Data>> = {{d = 0x558e280902e0, e = 0x558e280902e0}}, <No data fields>}}
        cacheKey = {d = 0x558e280d2b20}
        signature = {d = 0x7efd44016080}
        cacheIt = <optimized out>
        cachePropertyName = "_qdbus_slotCache"
#12 0x00007efd58e567d9 in QDBusConnectionPrivate::activateCall (msg=..., flags=273, object=<optimized out>, this=0x7efd440013d0) at qdbusintegrator.cpp:853
        slotCache = <optimized out>
        cacheKey = <optimized out>
        signature = <optimized out>
        cacheIt = <optimized out>
        cachePropertyName = "_qdbus_slotCache"
        mo = <optimized out>
        memberName = <optimized out>
        slotData = <optimized out>
#13 QDBusConnectionPrivate::activateObject (this=0x7efd440013d0, node=..., msg=..., pathStartPos=<optimized out>) at qdbusintegrator.cpp:1497
        it = 0x558e28085268
        newflags = <optimized out>
        connector = <optimized out>
#14 0x00007efd58e58a5c in QDBusActivateObjectEvent::placeMetaCall (this=0x558e27ed7480) at qdbusintegrator.cpp:1617
        that = <optimized out>
#15 0x00007efd584ba9a0 in QObject::event (this=0x558e28085dc0, e=0x558e27ed7480) at kernel/qobject.cpp:1347
        mce = 0x558e27ed7480
        sender = {previous = 0x0, receiver = 0x558e28085dc0, sender = 0x7efd440013d0, signal = -1}
#16 0x00007efd5848d7a8 in QCoreApplication::notifyInternal2 (receiver=0x558e28085dc0, event=0x558e27ed7480) at kernel/qcoreapplication.cpp:1064
        selfRequired = true
        result = false
        cbdata = {0x558e28085dc0, 0x558e27ed7480, 0x7ffde7ad4fef}
        d = <optimized out>
        threadData = 0x558e27ec8650
        scopeLevelCounter = {threadData = 0x558e27ec8650}
#17 0x00007efd5848d982 in QCoreApplication::sendEvent (receiver=<optimized out>, event=<optimized out>) at kernel/qcoreapplication.cpp:1462
No locals.
#18 0x00007efd58490eb1 in QCoreApplicationPrivate::sendPostedEvents (receiver=0x0, event_type=0, data=0x558e27ec8650) at kernel/qcoreapplication.cpp:1821
        e = 0x558e27ed7480
        pe = <optimized out>
        r = <optimized out>
        relocker = <optimized out>
        event_deleter = {d = 0x558e27ed7480}
        locker = {_M_device = 0x558e27ec8680, _M_owns = false}
        startOffset = 0
        i = @0x558e27ec8674: 1
        cleanup = {receiver = 0x0, event_type = 0, data = 0x558e27ec8650, exceptionCaught = true}
#19 0x00007efd5849140c in QCoreApplication::sendPostedEvents (receiver=<optimized out>, event_type=<optimized out>) at kernel/qcoreapplication.cpp:1680
        data = <optimized out>
#20 0x00007efd584e96f7 in postEventSourceDispatch (s=0x558e28071180) at kernel/qeventdispatcher_glib.cpp:277
        source = 0x558e28071180
#21 0x00007efd5727ab8c in g_main_dispatch (context=0x7efd4c000ec0) at ../../../glib/gmain.c:3476
        dispatch = 0x7efd584e96e0 <postEventSourceDispatch(GSource*, GSourceFunc, gpointer)>
        prev_source = 0x0
        begin_time_nsec = 0
        was_in_call = 0
        user_data = 0x0
        callback = 0x0
        cb_funcs = <optimized out>
        cb_data = <optimized out>
        need_destroy = <optimized out>
        source = 0x558e28071180
        current = 0x558e28075fc0
        i = 0
        __func__ = "g_main_dispatch"
#22 0x00007efd572d61af in g_main_context_dispatch_unlocked (context=0x7efd4c000ec0) at ../../../glib/gmain.c:4284
No locals.
#23 g_main_context_iterate_unlocked.isra.0 (context=context@entry=0x7efd4c000ec0, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at ../../../glib/gmain.c:4349
        max_priority = 2147483647
        timeout = -1
        some_ready = 1
        nfds = <optimized out>
        allocated_nfds = 1
        fds = 0x7efd44011a00
        begin_time_nsec = 0
#24 0x00007efd57278d80 in g_main_context_iteration (context=0x7efd4c000ec0, may_block=1) at ../../../glib/gmain.c:4414
        retval = <optimized out>
#25 0x00007efd584e8daa in QEventDispatcherGlib::processEvents (this=0x558e2806b2c0, flags=...) at kernel/qeventdispatcher_glib.cpp:423
        d = 0x558e27f082f0
        canWait = true
        savedFlags = {i = 0}
        result = <optimized out>
#26 0x00007efd5848c15b in QEventLoop::exec (this=this@entry=0x7ffde7ad52d0, flags=..., flags@entry=...) at ../../include/QtCore/../../src/corelib/global/qflags.h:69
        d = 0x7efd44011cd0
        threadData = <optimized out>
        locker = {val = 94069043529544}
        ref = <optimized out>
        app = <optimized out>
#27 0x00007efd58494904 in QCoreApplication::exec () at ../../include/QtCore/../../src/corelib/global/qflags.h:121
        threadData = 0x558e27ec8650
        eventLoop = {<QObject> = {_vptr.QObject = 0x7efd587318c8 <vtable for QEventLoop+16>, static staticMetaObject = {d = {superdata = {direct = 0x0}, stringdata = 0x7efd586659c0 <qt_meta_stringdata_QObject>, data = 0x7efd586658a0 <qt_meta_data_QObject>, static_metacall = 0x7efd584c5150 <QObject::qt_static_metacall(QObject*, QMetaObject::Call, int, void**)>, relatedMetaObjects = 0x0, extradata = 0x0}}, d_ptr = {d = 0x7efd44011cd0}, static staticQtMetaObject = {d = {superdata = {direct = 0x0}, stringdata = 0x7efd58668960 <qt_meta_stringdata_Qt>, data = 0x7efd58665ae0 <qt_meta_data_Qt>, static_metacall = 0x0, relatedMetaObjects = 0x0, extradata = 0x0}}}, static staticMetaObject = {d = {superdata = {direct = 0x7efd58729180 <QObject::staticMetaObject>}, stringdata = 0x7efd58661b60 <qt_meta_stringdata_QEventLoop>, data = 0x7efd58661b00 <qt_meta_data_QEventLoop>, static_metacall = 0x7efd5848be80 <QEventLoop::qt_static_metacall(QObject*, QMetaObject::Call, int, void**)>, relatedMetaObjects = 0x0, extradata = 0x0}}}
        returnCode = <optimized out>
#28 0x00007efd58870610 in QGuiApplication::exec () at kernel/qguiapplication.cpp:1863
No locals.
#29 0x0000558e264159b1 in main (argc=<optimized out>, argv=<optimized out>) at /usr/src/libkscreen-4:5.27.7-0ubuntu1/src/backendlauncher/main.cpp:32
        app = {<QCoreApplication> = {<QObject> = {_vptr.QObject = 0x7efd58e10860 <vtable for QGuiApplication+16>, static staticMetaObject = {d = {superdata = {direct = 0x0}, stringdata = 0x7efd586659c0 <qt_meta_stringdata_QObject>, data = 0x7efd586658a0 <qt_meta_data_QObject>, static_metacall = 0x7efd584c5150 <QObject::qt_static_metacall(QObject*, QMetaObject::Call, int, void**)>, relatedMetaObjects = 0x0, extradata = 0x0}}, d_ptr = {d = 0x558e27ec8520}, static staticQtMetaObject = {d = {superdata = {direct = 0x0}, stringdata = 0x7efd58668960 <qt_meta_stringdata_Qt>, data = 0x7efd58665ae0 <qt_meta_data_Qt>, static_metacall = 0x0, relatedMetaObjects = 0x0, extradata = 0x0}}}, static staticMetaObject = {d = {superdata = {direct = 0x7efd58729180 <QObject::staticMetaObject>}, stringdata = 0x7efd58661d80 <qt_meta_stringdata_QCoreApplication>, data = 0x7efd58661c60 <qt_meta_data_QCoreApplication>, static_metacall = 0x7efd5848f040 <QCoreApplication::qt_static_metacall(QObject*, QMetaObject::Call, int, void**)>, relatedMetaObjects = 0x0, extradata = 0x0}}, static self = 0x7ffde7ad5360}, static staticMetaObject = {d = {superdata = {direct = 0x7efd58731a60 <QCoreApplication::staticMetaObject>}, stringdata = 0x7efd58d2edc0 <qt_meta_stringdata_QGuiApplication>, data = 0x7efd58d2eb40 <qt_meta_data_QGuiApplication>, static_metacall = 0x7efd58875920 <QGuiApplication::qt_static_metacall(QObject*, QMetaObject::Call, int, void**)>, relatedMetaObjects = 0x0, extradata = 0x0}}}
        loader = 0x7efd440115c0
        ret = <optimized out>