Bug 361548

Summary: plasma crash when plug and unplug hdmi cable (2 screens)
Product: [Plasma] plasmashell Reporter: metacryptic
Component: generalAssignee: David Edmundson <kde>
Status: RESOLVED DUPLICATE    
Severity: crash CC: bhush94, bluescreenavenger, bruno, bvbfan, cogre666, heri+kde, krissn, me.dickson, plasma-bugs
Priority: NOR    
Version: 5.6.1   
Target Milestone: 1.0   
Platform: Arch Linux   
OS: Linux   
URL: Qt : 4.8.7 Plate-forme de développement de KDE : 4.14.18 Démon de KDE : 4.14.18
Latest Commit: Version Fixed In:
Sentry Crash Report:

Description metacryptic 2016-04-09 08:26:41 UTC 
Application: plasmashell (5.6.1)

Qt Version: 5.6.0
Frameworks Version: 5.20.0
Operating System: Linux 4.4.6-1-MANJARO x86_64
Distribution: "Manjaro Linux"

=> and 2 screen : one is the computer, the other my TV witch doesn't have the same resolution (less).


-- Information about the crash:
I was plugin the HDMI cable to have my desktop on my TV.
Turn off, turn on, turn off turn on my tv and it crach.

More generaly, I notice that the only way to have a desktop working on tv is to do this in the order :
1)  let linux turn on
2) if I plug an HDMI cable the TV must be Off
3) when I am completly log in my computer, now put on the TV
If you don't do that the desktop is in mess ot it crash (but less those 2 last month : a correction?)



The crash can be reproduced every time.

-- Backtrace:
Application: Plasma (plasmashell), signal: Segmentation fault
Using host libthread_db library "/usr/lib/libthread_db.so.1".
[Current thread is 1 (Thread 0x7f60532e1800 (LWP 894))]

Thread 9 (Thread 0x7f603c0fd700 (LWP 905)):
#0  0x00007f604c795c3d in poll () from /usr/lib/libc.so.6
#1  0x00007f6051793ae2 in ?? () from /usr/lib/libxcb.so.1
#2  0x00007f6051795757 in xcb_wait_for_event () from /usr/lib/libxcb.so.1
#3  0x00007f603da1fa99 in ?? () from /usr/lib/libQt5XcbQpa.so.5
#4  0x00007f604ce84de8 in ?? () from /usr/lib/libQt5Core.so.5
#5  0x00007f604bf98424 in start_thread () from /usr/lib/libpthread.so.0
#6  0x00007f604c79ecbd in clone () from /usr/lib/libc.so.6

Thread 8 (Thread 0x7f603a4d1700 (LWP 906)):
#0  0x00007f604c795c3d in poll () from /usr/lib/libc.so.6
#1  0x00007f6048c19f7c in ?? () from /usr/lib/libglib-2.0.so.0
#2  0x00007f6048c1a08c in g_main_context_iteration () from /usr/lib/libglib-2.0.so.0
#3  0x00007f604d0adcab in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/libQt5Core.so.5
#4  0x00007f604d0566fa in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/libQt5Core.so.5
#5  0x00007f604ce7ffe4 in QThread::exec() () from /usr/lib/libQt5Core.so.5
#6  0x00007f604de40a55 in ?? () from /usr/lib/libQt5DBus.so.5
#7  0x00007f604ce84de8 in ?? () from /usr/lib/libQt5Core.so.5
#8  0x00007f604bf98424 in start_thread () from /usr/lib/libpthread.so.0
#9  0x00007f604c79ecbd in clone () from /usr/lib/libc.so.6

Thread 7 (Thread 0x7f6038c91700 (LWP 995)):
#0  0x00007f6048c198e3 in g_main_context_check () from /usr/lib/libglib-2.0.so.0
#1  0x00007f6048c19f20 in ?? () from /usr/lib/libglib-2.0.so.0
#2  0x00007f6048c1a08c in g_main_context_iteration () from /usr/lib/libglib-2.0.so.0
#3  0x00007f604d0adcab in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/libQt5Core.so.5
#4  0x00007f604d0566fa in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/libQt5Core.so.5
#5  0x00007f604ce7ffe4 in QThread::exec() () from /usr/lib/libQt5Core.so.5
#6  0x00007f6050222915 in ?? () from /usr/lib/libQt5Qml.so.5
#7  0x00007f604ce84de8 in ?? () from /usr/lib/libQt5Core.so.5
#8  0x00007f604bf98424 in start_thread () from /usr/lib/libpthread.so.0
#9  0x00007f604c79ecbd in clone () from /usr/lib/libc.so.6

Thread 6 (Thread 0x7f6024094700 (LWP 998)):
#0  0x00007f604c795c3d in poll () from /usr/lib/libc.so.6
#1  0x00007f6048c19f7c in ?? () from /usr/lib/libglib-2.0.so.0
#2  0x00007f6048c1a08c in g_main_context_iteration () from /usr/lib/libglib-2.0.so.0
#3  0x00007f604d0adcab in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/libQt5Core.so.5
#4  0x00007f604d0566fa in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/libQt5Core.so.5
#5  0x00007f604ce7ffe4 in QThread::exec() () from /usr/lib/libQt5Core.so.5
#6  0x00007f6050222915 in ?? () from /usr/lib/libQt5Qml.so.5
#7  0x00007f604ce84de8 in ?? () from /usr/lib/libQt5Core.so.5
#8  0x00007f604bf98424 in start_thread () from /usr/lib/libpthread.so.0
#9  0x00007f604c79ecbd in clone () from /usr/lib/libc.so.6

Thread 5 (Thread 0x7f602263a700 (LWP 1001)):
#0  0x00007f6048c5e629 in g_mutex_lock () from /usr/lib/libglib-2.0.so.0
#1  0x00007f6048c19f3e in ?? () from /usr/lib/libglib-2.0.so.0
#2  0x00007f6048c1a08c in g_main_context_iteration () from /usr/lib/libglib-2.0.so.0
#3  0x00007f604d0adcab in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/libQt5Core.so.5
#4  0x00007f604d0566fa in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/libQt5Core.so.5
#5  0x00007f604ce7ffe4 in QThread::exec() () from /usr/lib/libQt5Core.so.5
#6  0x00007f6050222915 in ?? () from /usr/lib/libQt5Qml.so.5
#7  0x00007f604ce84de8 in ?? () from /usr/lib/libQt5Core.so.5
#8  0x00007f604bf98424 in start_thread () from /usr/lib/libpthread.so.0
#9  0x00007f604c79ecbd in clone () from /usr/lib/libc.so.6

Thread 4 (Thread 0x7f6020d18700 (LWP 1002)):
#0  0x00007f604bf9e03f in pthread_cond_wait@@GLIBC_2.3.2 () from /usr/lib/libpthread.so.0
#1  0x00007f6052a7d134 in ?? () from /usr/lib/libQt5Script.so.5
#2  0x00007f6052a7d179 in ?? () from /usr/lib/libQt5Script.so.5
#3  0x00007f604bf98424 in start_thread () from /usr/lib/libpthread.so.0
#4  0x00007f604c79ecbd in clone () from /usr/lib/libc.so.6

Thread 3 (Thread 0x7f5f93b34700 (LWP 1075)):
#0  0x00007f604c795c3d in poll () from /usr/lib/libc.so.6
#1  0x00007f6048c19f7c in ?? () from /usr/lib/libglib-2.0.so.0
#2  0x00007f6048c1a08c in g_main_context_iteration () from /usr/lib/libglib-2.0.so.0
#3  0x00007f604d0adcab in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/libQt5Core.so.5
#4  0x00007f604d0566fa in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/libQt5Core.so.5
#5  0x00007f604ce7ffe4 in QThread::exec() () from /usr/lib/libQt5Core.so.5
#6  0x00007f6050dbc616 in ?? () from /usr/lib/libQt5Quick.so.5
#7  0x00007f604ce84de8 in ?? () from /usr/lib/libQt5Core.so.5
#8  0x00007f604bf98424 in start_thread () from /usr/lib/libpthread.so.0
#9  0x00007f604c79ecbd in clone () from /usr/lib/libc.so.6

Thread 2 (Thread 0x7f5f856ad700 (LWP 1314)):
#0  0x00007f604d0abec8 in QTimerInfoList::timerWait(timespec&) () from /usr/lib/libQt5Core.so.5
#1  0x00007f604d0ad18e in ?? () from /usr/lib/libQt5Core.so.5
#2  0x00007f6048c1950d in g_main_context_prepare () from /usr/lib/libglib-2.0.so.0
#3  0x00007f6048c19eab in ?? () from /usr/lib/libglib-2.0.so.0
#4  0x00007f6048c1a08c in g_main_context_iteration () from /usr/lib/libglib-2.0.so.0
#5  0x00007f604d0adcab in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/libQt5Core.so.5
#6  0x00007f604d0566fa in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/libQt5Core.so.5
#7  0x00007f604ce7ffe4 in QThread::exec() () from /usr/lib/libQt5Core.so.5
#8  0x00007f5f87bb15b7 in KCupsConnection::run() () from /usr/lib/libkcupslib.so
#9  0x00007f604ce84de8 in ?? () from /usr/lib/libQt5Core.so.5
#10 0x00007f604bf98424 in start_thread () from /usr/lib/libpthread.so.0
#11 0x00007f604c79ecbd in clone () from /usr/lib/libc.so.6

Thread 1 (Thread 0x7f60532e1800 (LWP 894)):
[KCrash Handler]
#5  0x00007f60514ea270 in Plasma::Applet::actions() const () from /usr/lib/libKF5Plasma.so.5
#6  0x00000000004460be in ?? ()
#7  0x000000000044624f in ?? ()
#8  0x00007f604d084bae in QMetaObject::activate(QObject*, int, int, void**) () from /usr/lib/libQt5Core.so.5
#9  0x00007f60521b43bf in KScreen::Output::apply(QSharedPointer<KScreen::Output> const&) () from /usr/lib/libKF5Screen.so.7
#10 0x00007f6052195f85 in KScreen::Config::apply(QSharedPointer<KScreen::Config> const&) () from /usr/lib/libKF5Screen.so.7
#11 0x00007f60521a1fa6 in KScreen::ConfigMonitor::Private::updateConfigs(QSharedPointer<KScreen::Config> const&) () from /usr/lib/libKF5Screen.so.7
#12 0x00007f60521a3e71 in KScreen::ConfigMonitor::Private::edidReady(QDBusPendingCallWatcher*) () from /usr/lib/libKF5Screen.so.7
#13 0x00007f604d084bae in QMetaObject::activate(QObject*, int, int, void**) () from /usr/lib/libQt5Core.so.5
#14 0x00007f604de96e1f in QDBusPendingCallWatcher::finished(QDBusPendingCallWatcher*) () from /usr/lib/libQt5DBus.so.5
#15 0x00007f604de96f18 in ?? () from /usr/lib/libQt5DBus.so.5
#16 0x00007f604d085659 in QObject::event(QEvent*) () from /usr/lib/libQt5Core.so.5
#17 0x00007f604e20968c in QApplicationPrivate::notify_helper(QObject*, QEvent*) () from /usr/lib/libQt5Widgets.so.5
#18 0x00007f604e20e8f6 in QApplication::notify(QObject*, QEvent*) () from /usr/lib/libQt5Widgets.so.5
#19 0x00007f604d058518 in QCoreApplication::notifyInternal2(QObject*, QEvent*) () from /usr/lib/libQt5Core.so.5
#20 0x00007f604d05a3da in QCoreApplicationPrivate::sendPostedEvents(QObject*, int, QThreadData*) () from /usr/lib/libQt5Core.so.5
#21 0x00007f604d0ad883 in ?? () from /usr/lib/libQt5Core.so.5
#22 0x00007f6048c19d87 in g_main_context_dispatch () from /usr/lib/libglib-2.0.so.0
#23 0x00007f6048c19fe0 in ?? () from /usr/lib/libglib-2.0.so.0
#24 0x00007f6048c1a08c in g_main_context_iteration () from /usr/lib/libglib-2.0.so.0
#25 0x00007f604d0adc8f in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/libQt5Core.so.5
#26 0x00007f604d0566fa in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/libQt5Core.so.5
#27 0x00007f604d05eb7c in QCoreApplication::exec() () from /usr/lib/libQt5Core.so.5
#28 0x000000000041c176 in ?? ()
#29 0x00007f604c6d7710 in __libc_start_main () from /usr/lib/libc.so.6
#30 0x000000000041c2d9 in _start ()

Rapporter à https://bugs.kde.org/


Reproducible: Always

Steps to Reproduce:
1.plug and unplug HDMI cable (using HDMI to have 2 screen, well one in fact.... on my tv... but it doesn't work either, configuration window for this funcitonality is not clear and it can provoque messy desktop)
2.crash


Expected Results:  
good management of 2 screen with different resolution, without crash
Comment 1 Marco Martin 2016-05-04 10:50:01 UTC 
*** Bug 362552 has been marked as a duplicate of this bug. ***
Comment 2 Marco Martin 2016-05-04 10:51:03 UTC 
*** Bug 362184 has been marked as a duplicate of this bug. ***
Comment 3 Marco Martin 2016-05-04 10:51:28 UTC 
*** Bug 362635 has been marked as a duplicate of this bug. ***
Comment 4 Krzysztof Nowicki 2016-05-08 15:36:08 UTC 
I have a laptop with a docking station and a monitor attached to it over DisplayPort. Quite often when I leave the desk and the screen automatically blanks the monitor will switch itself off and unplug itself from the system (supposedly a standard DisplayPort behaviour). Once I come back and wake everything up I see Plasma restart itself and this crash report pops up.


Application: Plasma (plasmashell), signal: Segmentation fault
Using host libthread_db library "/lib64/libthread_db.so.1".
[Current thread is 1 (Thread 0x7f12304e2840 (LWP 7477))]

Thread 17 (Thread 0x7f122e60b700 (LWP 7482)):
#0  0x00007f123ad1648d in poll () from /lib64/libc.so.6
#1  0x00007f123f857bd2 in ?? () from /usr/lib64/libxcb.so.1
#2  0x00007f123f863f7f in xcb_wait_for_event () from /usr/lib64/libxcb.so.1
#3  0x00007f123013f4b9 in ?? () from /usr/lib64/libQt5XcbQpa.so.5
#4  0x00007f123b5da19f in ?? () from /usr/lib64/libQt5Core.so.5
#5  0x00007f123a0a0550 in start_thread () from /lib64/libpthread.so.0
#6  0x00007f123ad1febd in clone () from /lib64/libc.so.6

Thread 16 (Thread 0x7f122c9b2700 (LWP 7483)):
#0  0x00007f123ad1230d in read () from /lib64/libc.so.6
#1  0x00007f12379f6950 in ?? () from /usr/lib64/libglib-2.0.so.0
#2  0x00007f12379970ec in g_main_context_check () from /usr/lib64/libglib-2.0.so.0
#3  0x00007f12379d3f10 in ?? () from /usr/lib64/libglib-2.0.so.0
#4  0x00007f1237997b3b in g_main_context_iteration () from /usr/lib64/libglib-2.0.so.0
#5  0x00007f123b722b4b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib64/libQt5Core.so.5
#6  0x00007f123b67d33a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib64/libQt5Core.so.5
#7  0x00007f123b52ffdc in QThread::exec() () from /usr/lib64/libQt5Core.so.5
#8  0x00007f123be23061 in ?? () from /usr/lib64/libQt5DBus.so.5
#9  0x00007f123b5da19f in ?? () from /usr/lib64/libQt5Core.so.5
#10 0x00007f123a0a0550 in start_thread () from /lib64/libpthread.so.0
#11 0x00007f123ad1febd in clone () from /lib64/libc.so.6

Thread 15 (Thread 0x7f1226fc7700 (LWP 7488)):
#0  0x00007f12379f6ce7 in g_mutex_unlock () from /usr/lib64/libglib-2.0.so.0
#1  0x00007f1237997d50 in g_main_context_prepare () from /usr/lib64/libglib-2.0.so.0
#2  0x00007f12379d3e93 in ?? () from /usr/lib64/libglib-2.0.so.0
#3  0x00007f1237997b3b in g_main_context_iteration () from /usr/lib64/libglib-2.0.so.0
#4  0x00007f123b722b4b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib64/libQt5Core.so.5
#5  0x00007f123b67d33a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib64/libQt5Core.so.5
#6  0x00007f123b52ffdc in QThread::exec() () from /usr/lib64/libQt5Core.so.5
#7  0x00007f123e716a94 in ?? () from /usr/lib64/libQt5Qml.so.5
#8  0x00007f123b5da19f in ?? () from /usr/lib64/libQt5Core.so.5
#9  0x00007f123a0a0550 in start_thread () from /lib64/libpthread.so.0
#10 0x00007f123ad1febd in clone () from /lib64/libc.so.6

Thread 14 (Thread 0x7f1217eb2700 (LWP 7526)):
#0  0x00007f123b51e238 in QMutex::unlock() () from /usr/lib64/libQt5Core.so.5
#1  0x00007f123b7279c0 in ?? () from /usr/lib64/libQt5Core.so.5
#2  0x00007f1237997d5d in g_main_context_prepare () from /usr/lib64/libglib-2.0.so.0
#3  0x00007f12379d3e93 in ?? () from /usr/lib64/libglib-2.0.so.0
#4  0x00007f1237997b3b in g_main_context_iteration () from /usr/lib64/libglib-2.0.so.0
#5  0x00007f123b722b4b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib64/libQt5Core.so.5
#6  0x00007f123b67d33a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib64/libQt5Core.so.5
#7  0x00007f123b52ffdc in QThread::exec() () from /usr/lib64/libQt5Core.so.5
#8  0x00007f123e716a94 in ?? () from /usr/lib64/libQt5Qml.so.5
#9  0x00007f123b5da19f in ?? () from /usr/lib64/libQt5Core.so.5
#10 0x00007f123a0a0550 in start_thread () from /lib64/libpthread.so.0
#11 0x00007f123ad1febd in clone () from /lib64/libc.so.6

Thread 13 (Thread 0x7f1215a3f700 (LWP 7532)):
#0  0x00007f123b510140 in g_main_context_iteration@plt () from /usr/lib64/libQt5Core.so.5
#1  0x00007f123b722b4b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib64/libQt5Core.so.5
#2  0x00007f123b67d33a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib64/libQt5Core.so.5
#3  0x00007f123b52ffdc in QThread::exec() () from /usr/lib64/libQt5Core.so.5
#4  0x00007f123e716a94 in ?? () from /usr/lib64/libQt5Qml.so.5
#5  0x00007f123b5da19f in ?? () from /usr/lib64/libQt5Core.so.5
#6  0x00007f123a0a0550 in start_thread () from /lib64/libpthread.so.0
#7  0x00007f123ad1febd in clone () from /lib64/libc.so.6

Thread 12 (Thread 0x7f120fdf6700 (LWP 7564)):
#0  0x00007f123a0a62ff in pthread_cond_wait () from /lib64/libpthread.so.0
#1  0x00007f1241145c74 in ?? () from /usr/lib64/libQt5Script.so.5
#2  0x00007f1241145cc8 in ?? () from /usr/lib64/libQt5Script.so.5
#3  0x00007f123a0a0550 in start_thread () from /lib64/libpthread.so.0
#4  0x00007f123ad1febd in clone () from /lib64/libc.so.6

Thread 11 (Thread 0x7f1187648700 (LWP 7697)):
#0  0x00007f12379f6ce7 in g_mutex_unlock () from /usr/lib64/libglib-2.0.so.0
#1  0x00007f1237997de0 in g_main_context_prepare () from /usr/lib64/libglib-2.0.so.0
#2  0x00007f12379d3e93 in ?? () from /usr/lib64/libglib-2.0.so.0
#3  0x00007f1237997b3b in g_main_context_iteration () from /usr/lib64/libglib-2.0.so.0
#4  0x00007f123b722b4b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib64/libQt5Core.so.5
#5  0x00007f123b67d33a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib64/libQt5Core.so.5
#6  0x00007f123b52ffdc in QThread::exec() () from /usr/lib64/libQt5Core.so.5
#7  0x00007f123f0651d5 in ?? () from /usr/lib64/libQt5Quick.so.5
#8  0x00007f123b5da19f in ?? () from /usr/lib64/libQt5Core.so.5
#9  0x00007f123a0a0550 in start_thread () from /lib64/libpthread.so.0
#10 0x00007f123ad1febd in clone () from /lib64/libc.so.6

Thread 10 (Thread 0x7f1186009700 (LWP 7737)):
#0  0x00007f123a0a62ff in pthread_cond_wait () from /lib64/libpthread.so.0
#1  0x00007f123b5d5f9b in QWaitCondition::wait(QMutex*, unsigned long) () from /usr/lib64/libQt5Core.so.5
#2  0x00007f123f0a8e1f in ?? () from /usr/lib64/libQt5Quick.so.5
#3  0x00007f123b5da19f in ?? () from /usr/lib64/libQt5Core.so.5
#4  0x00007f123a0a0550 in start_thread () from /lib64/libpthread.so.0
#5  0x00007f123ad1febd in clone () from /lib64/libc.so.6

Thread 9 (Thread 0x7f1171a64700 (LWP 8284)):
#0  0x00007f123a0a62ff in pthread_cond_wait () from /lib64/libpthread.so.0
#1  0x00007f123b5d5f9b in QWaitCondition::wait(QMutex*, unsigned long) () from /usr/lib64/libQt5Core.so.5
#2  0x00007f123f0a8e1f in ?? () from /usr/lib64/libQt5Quick.so.5
#3  0x00007f123b5da19f in ?? () from /usr/lib64/libQt5Core.so.5
#4  0x00007f123a0a0550 in start_thread () from /lib64/libpthread.so.0
#5  0x00007f123ad1febd in clone () from /lib64/libc.so.6

Thread 8 (Thread 0x7f1162d8d700 (LWP 8537)):
#0  0x00007f123a0a62ff in pthread_cond_wait () from /lib64/libpthread.so.0
#1  0x00007f123b5d5f9b in QWaitCondition::wait(QMutex*, unsigned long) () from /usr/lib64/libQt5Core.so.5
#2  0x00007f123f0a8e1f in ?? () from /usr/lib64/libQt5Quick.so.5
#3  0x00007f123b5da19f in ?? () from /usr/lib64/libQt5Core.so.5
#4  0x00007f123a0a0550 in start_thread () from /lib64/libpthread.so.0
#5  0x00007f123ad1febd in clone () from /lib64/libc.so.6

Thread 7 (Thread 0x7f116258c700 (LWP 8549)):
#0  0x00007f123a0a62ff in pthread_cond_wait () from /lib64/libpthread.so.0
#1  0x00007f123b5d5f9b in QWaitCondition::wait(QMutex*, unsigned long) () from /usr/lib64/libQt5Core.so.5
#2  0x00007f123f0a8e1f in ?? () from /usr/lib64/libQt5Quick.so.5
#3  0x00007f123b5da19f in ?? () from /usr/lib64/libQt5Core.so.5
#4  0x00007f123a0a0550 in start_thread () from /lib64/libpthread.so.0
#5  0x00007f123ad1febd in clone () from /lib64/libc.so.6

Thread 6 (Thread 0x7f116358e700 (LWP 15275)):
#0  0x00007f123a0a62ff in pthread_cond_wait () from /lib64/libpthread.so.0
#1  0x00007f123b5d5f9b in QWaitCondition::wait(QMutex*, unsigned long) () from /usr/lib64/libQt5Core.so.5
#2  0x00007f123f0a8e1f in ?? () from /usr/lib64/libQt5Quick.so.5
#3  0x00007f123b5da19f in ?? () from /usr/lib64/libQt5Core.so.5
#4  0x00007f123a0a0550 in start_thread () from /lib64/libpthread.so.0
#5  0x00007f123ad1febd in clone () from /lib64/libc.so.6

Thread 5 (Thread 0x7f1161b8b700 (LWP 18189)):
#0  0x00007f123a0a62ff in pthread_cond_wait () from /lib64/libpthread.so.0
#1  0x00007f123b5d5f9b in QWaitCondition::wait(QMutex*, unsigned long) () from /usr/lib64/libQt5Core.so.5
#2  0x00007f123f0a8e1f in ?? () from /usr/lib64/libQt5Quick.so.5
#3  0x00007f123b5da19f in ?? () from /usr/lib64/libQt5Core.so.5
#4  0x00007f123a0a0550 in start_thread () from /lib64/libpthread.so.0
#5  0x00007f123ad1febd in clone () from /lib64/libc.so.6

Thread 4 (Thread 0x7f116118a700 (LWP 26455)):
#0  0x00007f123a0a62ff in pthread_cond_wait () from /lib64/libpthread.so.0
#1  0x00007f123b5d5f9b in QWaitCondition::wait(QMutex*, unsigned long) () from /usr/lib64/libQt5Core.so.5
#2  0x00007f123f0a8e1f in ?? () from /usr/lib64/libQt5Quick.so.5
#3  0x00007f123b5da19f in ?? () from /usr/lib64/libQt5Core.so.5
#4  0x00007f123a0a0550 in start_thread () from /lib64/libpthread.so.0
#5  0x00007f123ad1febd in clone () from /lib64/libc.so.6

Thread 3 (Thread 0x7f114bbff700 (LWP 28660)):
#0  0x00007f123a0a62ff in pthread_cond_wait () from /lib64/libpthread.so.0
#1  0x00007f123b5d5f9b in QWaitCondition::wait(QMutex*, unsigned long) () from /usr/lib64/libQt5Core.so.5
#2  0x00007f123f0a8e1f in ?? () from /usr/lib64/libQt5Quick.so.5
#3  0x00007f123b5da19f in ?? () from /usr/lib64/libQt5Core.so.5
#4  0x00007f123a0a0550 in start_thread () from /lib64/libpthread.so.0
#5  0x00007f123ad1febd in clone () from /lib64/libc.so.6

Thread 2 (Thread 0x7f11497fd700 (LWP 3991)):
#0  0x00007f123a0a62ff in pthread_cond_wait () from /lib64/libpthread.so.0
#1  0x00007f123b5d5f9b in QWaitCondition::wait(QMutex*, unsigned long) () from /usr/lib64/libQt5Core.so.5
#2  0x00007f123f0a8e1f in ?? () from /usr/lib64/libQt5Quick.so.5
#3  0x00007f123b5da19f in ?? () from /usr/lib64/libQt5Core.so.5
#4  0x00007f123a0a0550 in start_thread () from /lib64/libpthread.so.0
#5  0x00007f123ad1febd in clone () from /lib64/libc.so.6

Thread 1 (Thread 0x7f12304e2840 (LWP 7477)):
[KCrash Handler]
#6  Plasma::Applet::actions() const (this=0x0) at /var/tmp/portage/kde-frameworks/plasma-5.21.0/work/plasma-framework-5.21.0/src/plasma/applet.cpp:611
#7  0x000055f46203b8b1 in ShellCorona::addOutput(QSharedPointer<KScreen::Output> const&) (this=this@entry=0x55f462f80ea0, output=...) at /var/tmp/portage/kde-plasma/plasma-workspace-5.6.3/work/plasma-workspace-5.6.3/shell/shellcorona.cpp:909
#8  0x000055f46203b9f1 in ShellCorona::outputEnabledChanged() (this=0x55f462f80ea0) at /var/tmp/portage/kde-plasma/plasma-workspace-5.6.3/work/plasma-workspace-5.6.3/shell/shellcorona.cpp:802
#9  0x000055f46204f538 in QtPrivate::FunctorCall<QtPrivate::IndexesList<>, QtPrivate::List<>, void, void (ShellCorona::*)()>::call(void (ShellCorona::*)(), ShellCorona*, void**) () at /usr/include/qt5/QtCore/qobjectdefs_impl.h:501
#10 QtPrivate::FunctionPointer::call (arg=<optimized out>, o=<optimized out>, f=<optimized out>) at /usr/include/qt5/QtCore/qobjectdefs_impl.h:520
#11 QtPrivate::QSlotObject<void (ShellCorona::*)(), QtPrivate::List<>, void>::impl(int, QtPrivate::QSlotObjectBase*, QObject*, void**, bool*) [clone .lto_priv.80] (which=<optimized out>, this_=<optimized out>, r=<optimized out>, a=<optimized out>, ret=<optimized out>) at /usr/include/qt5/QtCore/qobject_impl.h:143
#12 0x00007f123b6a6c3e in QMetaObject::activate(QObject*, int, int, void**) () from /usr/lib64/libQt5Core.so.5
#13 0x00007f12408c30e0 in KScreen::Output::apply(QSharedPointer<KScreen::Output> const&) () from /usr/lib64/libKF5Screen.so.7
#14 0x00007f12408ca85b in KScreen::Config::apply(QSharedPointer<KScreen::Config> const&) () from /usr/lib64/libKF5Screen.so.7
#15 0x00007f12408d443b in KScreen::ConfigMonitor::Private::updateConfigs(QSharedPointer<KScreen::Config> const&) () from /usr/lib64/libKF5Screen.so.7
#16 0x00007f12408d4b7d in KScreen::ConfigMonitor::Private::edidReady(QDBusPendingCallWatcher*) () from /usr/lib64/libKF5Screen.so.7
#17 0x00007f123b6a6c3e in QMetaObject::activate(QObject*, int, int, void**) () from /usr/lib64/libQt5Core.so.5
#18 0x00007f123be4cc0e in QDBusPendingCallWatcher::finished(QDBusPendingCallWatcher*) () from /usr/lib64/libQt5DBus.so.5
#19 0x00007f123be4d330 in ?? () from /usr/lib64/libQt5DBus.so.5
#20 0x00007f123b773e3f in QObject::event(QEvent*) () from /usr/lib64/libQt5Core.so.5
#21 0x00007f123c3412ec in QApplicationPrivate::notify_helper(QObject*, QEvent*) () from /usr/lib64/libQt5Widgets.so.5
#22 0x00007f123c3487cc in QApplication::notify(QObject*, QEvent*) () from /usr/lib64/libQt5Widgets.so.5
#23 0x00007f123b67651a in QCoreApplication::notifyInternal2(QObject*, QEvent*) () from /usr/lib64/libQt5Core.so.5
#24 0x00007f123b6769c6 in QCoreApplicationPrivate::sendPostedEvents(QObject*, int, QThreadData*) () from /usr/lib64/libQt5Core.so.5
#25 0x00007f123b72a166 in ?? () from /usr/lib64/libQt5Core.so.5
#26 0x00007f1237996957 in g_main_context_dispatch () from /usr/lib64/libglib-2.0.so.0
#27 0x00007f12379d3fd8 in ?? () from /usr/lib64/libglib-2.0.so.0
#28 0x00007f1237997b3b in g_main_context_iteration () from /usr/lib64/libglib-2.0.so.0
#29 0x00007f123b722b2e in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib64/libQt5Core.so.5
#30 0x00007f123b67d33a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib64/libQt5Core.so.5
#31 0x00007f123b67d5cb in QCoreApplication::exec() () from /usr/lib64/libQt5Core.so.5
#32 0x000055f462030a6e in main (argc=2, argv=<optimized out>) at /var/tmp/portage/kde-plasma/plasma-workspace-5.6.3/work/plasma-workspace-5.6.3/shell/main.cpp:139
Comment 5 Marco Martin 2016-05-12 12:14:18 UTC 
*** Bug 362745 has been marked as a duplicate of this bug. ***
Comment 6 Marco Martin 2016-05-19 12:48:51 UTC 
*** Bug 363125 has been marked as a duplicate of this bug. ***
Comment 7 Anthony Fieroni 2016-05-30 18:07:50 UTC 
Can someone try this patch -> https://git.reviewboard.kde.org/r/128040/
Comment 8 Dennis Schridde 2016-05-30 20:04:39 UTC 
Actually I haven't seen this in a while. I'm using KF 5.22.0, Plasma 5.6.4, Apps 16.04.1.
Comment 9 Christoph Feck 2016-06-13 16:19:48 UTC 

*** This bug has been marked as a duplicate of bug 351507 ***