Arch Linux

c21253

Member

Registered: 2018-10-24

Posts: 5

[SOLVED]KDE Plasma very slow and some KDE applications crash

I recently installed KDE on my Freshly installed Arch Linux,
My system is
Operating System: Arch Linux
KDE Plasma Version: 5.14.3
Qt Version: 5.11.2
KDE Frameworks Version: 5.52.0
Kernel Version: 4.18.16-arch1-1-ARCH
OS Type: 64-bit
Processors: 4 × Intel® Core™ i5-7200U CPU @ 2.50GHz
Memory: 15.5 GiB of RAM

I'm installed Xorg but I'm using lightdm(as sddm doesn't seem to start in my installation) to start KDE.

On startup, ksplashqml crashes immediately.

Then my KDE installation is very slow. Moving windows are delayed and slows down the system.
I'm using nvidia340-xx if that helps/

As for other application crashes, opening some applications like
Info Center(then clicking Energy Information) crashes and here's the log

Application: Info Center (kinfocenter), signal: Aborted
Using host libthread_db library "/usr/lib/libthread_db.so.1".
[Current thread is 1 (Thread 0x7f48b8b1acc0 (LWP 1133))]

Thread 4 (Thread 0x7f48af2bf700 (LWP 1140)):
#0  0x00007f48c1269c21 in poll () from /usr/lib/libc.so.6
#1  0x00007f48bf0caee0 in ?? () from /usr/lib/libglib-2.0.so.0
#2  0x00007f48bf0cafce in g_main_context_iteration () from /usr/lib/libglib-2.0.so.0
#3  0x00007f48c1790fe4 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/libQt5Core.so.5
#4  0x00007f48c173c8cc in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/libQt5Core.so.5
#5  0x00007f48c1585eb9 in QThread::exec() () from /usr/lib/libQt5Core.so.5
#6  0x00007f48c0b5f859 in ?? () from /usr/lib/libQt5Qml.so.5
#7  0x00007f48c158ff65 in ?? () from /usr/lib/libQt5Core.so.5
#8  0x00007f48bff7ba9d in start_thread () from /usr/lib/libpthread.so.0
#9  0x00007f48c1274b23 in clone () from /usr/lib/libc.so.6

Thread 3 (Thread 0x7f48b4fb1700 (LWP 1136)):
#0  0x00007f48c1269c21 in poll () from /usr/lib/libc.so.6
#1  0x00007f48bf0caee0 in ?? () from /usr/lib/libglib-2.0.so.0
#2  0x00007f48bf0cafce in g_main_context_iteration () from /usr/lib/libglib-2.0.so.0
#3  0x00007f48c1790fe4 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/libQt5Core.so.5
#4  0x00007f48c173c8cc in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/libQt5Core.so.5
#5  0x00007f48c1585eb9 in QThread::exec() () from /usr/lib/libQt5Core.so.5
#6  0x00007f48c0725ba6 in ?? () from /usr/lib/libQt5DBus.so.5
#7  0x00007f48c158ff65 in ?? () from /usr/lib/libQt5Core.so.5
#8  0x00007f48bff7ba9d in start_thread () from /usr/lib/libpthread.so.0
#9  0x00007f48c1274b23 in clone () from /usr/lib/libc.so.6

Thread 2 (Thread 0x7f48b72cc700 (LWP 1135)):
#0  0x00007f48c1269c21 in poll () from /usr/lib/libc.so.6
#1  0x00007f48c01a4630 in ?? () from /usr/lib/libxcb.so.1
#2  0x00007f48c01a62db in xcb_wait_for_event () from /usr/lib/libxcb.so.1
#3  0x00007f48b8686c5a in ?? () from /usr/lib/libQt5XcbQpa.so.5
#4  0x00007f48c158ff65 in ?? () from /usr/lib/libQt5Core.so.5
#5  0x00007f48bff7ba9d in start_thread () from /usr/lib/libpthread.so.0
#6  0x00007f48c1274b23 in clone () from /usr/lib/libc.so.6

Thread 1 (Thread 0x7f48b8b1acc0 (LWP 1133)):
[KCrash Handler]
#6  0x00007f48c11b0d7f in raise () from /usr/lib/libc.so.6
#7  0x00007f48c119b672 in abort () from /usr/lib/libc.so.6
#8  0x00007f48c154c7fc in QMessageLogger::fatal(char const*, ...) const () from /usr/lib/libQt5Core.so.5
#9  0x00007f48c116e036 in ?? () from /usr/lib/libQt5QuickWidgets.so.5
#10 0x00007f48c116e374 in ?? () from /usr/lib/libQt5QuickWidgets.so.5
#11 0x00007f48c11705d6 in QQuickWidget::resizeEvent(QResizeEvent*) () from /usr/lib/libQt5QuickWidgets.so.5
#12 0x00007f48c20f806e in QWidget::event(QEvent*) () from /usr/lib/libQt5Widgets.so.5
#13 0x00007f48c11712c6 in QQuickWidget::event(QEvent*) () from /usr/lib/libQt5QuickWidgets.so.5
#14 0x00007f48c20b7e14 in QApplicationPrivate::notify_helper(QObject*, QEvent*) () from /usr/lib/libQt5Widgets.so.5
#15 0x00007f48c20bf6e1 in QApplication::notify(QObject*, QEvent*) () from /usr/lib/libQt5Widgets.so.5
#16 0x00007f48c173dc39 in QCoreApplication::notifyInternal2(QObject*, QEvent*) () from /usr/lib/libQt5Core.so.5
#17 0x00007f48c20efdf5 in QWidgetPrivate::sendPendingMoveAndResizeEvents(bool, bool) () from /usr/lib/libQt5Widgets.so.5
#18 0x00007f48c20f3e94 in QWidgetPrivate::show_helper() () from /usr/lib/libQt5Widgets.so.5
#19 0x00007f48c20f71d5 in QWidget::setVisible(bool) () from /usr/lib/libQt5Widgets.so.5
#20 0x00007f48c20f3e49 in QWidgetPrivate::showChildren(bool) () from /usr/lib/libQt5Widgets.so.5
#21 0x00007f48c20f3eb2 in QWidgetPrivate::show_helper() () from /usr/lib/libQt5Widgets.so.5
#22 0x00007f48c20f71d5 in QWidget::setVisible(bool) () from /usr/lib/libQt5Widgets.so.5
#23 0x00007f48c20f3e49 in QWidgetPrivate::showChildren(bool) () from /usr/lib/libQt5Widgets.so.5
#24 0x00007f48c20f3eb2 in QWidgetPrivate::show_helper() () from /usr/lib/libQt5Widgets.so.5
#25 0x00007f48c20f71d5 in QWidget::setVisible(bool) () from /usr/lib/libQt5Widgets.so.5
#26 0x00007f48c20f65e2 in ?? () from /usr/lib/libQt5Widgets.so.5
#27 0x00007f48c1768352 in QObject::event(QEvent*) () from /usr/lib/libQt5Core.so.5
#28 0x00007f48c20f7b0c in QWidget::event(QEvent*) () from /usr/lib/libQt5Widgets.so.5
#29 0x00007f48c20b7e14 in QApplicationPrivate::notify_helper(QObject*, QEvent*) () from /usr/lib/libQt5Widgets.so.5
#30 0x00007f48c20bf6e1 in QApplication::notify(QObject*, QEvent*) () from /usr/lib/libQt5Widgets.so.5
#31 0x00007f48c173dc39 in QCoreApplication::notifyInternal2(QObject*, QEvent*) () from /usr/lib/libQt5Core.so.5
#32 0x00007f48c1740ccc in QCoreApplicationPrivate::sendPostedEvents(QObject*, int, QThreadData*) () from /usr/lib/libQt5Core.so.5
#33 0x00007f48c17919d4 in ?? () from /usr/lib/libQt5Core.so.5
#34 0x00007f48bf0c93cf in g_main_context_dispatch () from /usr/lib/libglib-2.0.so.0
#35 0x00007f48bf0caf89 in ?? () from /usr/lib/libglib-2.0.so.0
#36 0x00007f48bf0cafce in g_main_context_iteration () from /usr/lib/libglib-2.0.so.0
#37 0x00007f48c1790fc9 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/libQt5Core.so.5
#38 0x00007f48b871cda2 in ?? () from /usr/lib/libQt5XcbQpa.so.5
#39 0x00007f48c173c8cc in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/libQt5Core.so.5
#40 0x00007f48c1744bc6 in QCoreApplication::exec() () from /usr/lib/libQt5Core.so.5
#41 0x00005560973ea05b in ?? ()
#42 0x00007f48c119d223 in __libc_start_main () from /usr/lib/libc.so.6
#43 0x00005560973ea0ce in _start ()
[Inferior 1 (process 1133) detached]

and software center:

Application: Discover (plasma-discover), signal: Aborted

Plasma Theme explorer:

Application: plasmathemeexplorer (plasmathemeexplorer), signal: Aborted
Using host libthread_db library "/usr/lib/libthread_db.so.1".
[Current thread is 1 (Thread 0x7faa660d9840 (LWP 1341))]

Thread 4 (Thread 0x7faa5ec7d700 (LWP 1345)):
#0  0x00007faa6f3f97a4 in read () from /usr/lib/libc.so.6
#1  0x00007faa6d3d4781 in ?? () from /usr/lib/libglib-2.0.so.0
#2  0x00007faa6d424a50 in g_main_context_check () from /usr/lib/libglib-2.0.so.0
#3  0x00007faa6d425e86 in ?? () from /usr/lib/libglib-2.0.so.0
#4  0x00007faa6d425fce in g_main_context_iteration () from /usr/lib/libglib-2.0.so.0
#5  0x00007faa6f924fe4 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/libQt5Core.so.5
#6  0x00007faa6f8d08cc in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/libQt5Core.so.5
#7  0x00007faa6f719eb9 in QThread::exec() () from /usr/lib/libQt5Core.so.5
#8  0x00007faa70bd8859 in ?? () from /usr/lib/libQt5Qml.so.5
#9  0x00007faa6f723f65 in ?? () from /usr/lib/libQt5Core.so.5
#10 0x00007faa6e50da9d in start_thread () from /usr/lib/libpthread.so.0
#11 0x00007faa6f408b23 in clone () from /usr/lib/libc.so.6

Thread 3 (Thread 0x7faa5f47e700 (LWP 1344)):
#0  0x00007faa6f3fdc21 in poll () from /usr/lib/libc.so.6
#1  0x00007faa6d425ee0 in ?? () from /usr/lib/libglib-2.0.so.0
#2  0x00007faa6d425fce in g_main_context_iteration () from /usr/lib/libglib-2.0.so.0
#3  0x00007faa6f924fe4 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/libQt5Core.so.5
#4  0x00007faa6f8d08cc in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/libQt5Core.so.5
#5  0x00007faa6f719eb9 in QThread::exec() () from /usr/lib/libQt5Core.so.5
#6  0x00007faa6edbaba6 in ?? () from /usr/lib/libQt5DBus.so.5
#7  0x00007faa6f723f65 in ?? () from /usr/lib/libQt5Core.so.5
#8  0x00007faa6e50da9d in start_thread () from /usr/lib/libpthread.so.0
#9  0x00007faa6f408b23 in clone () from /usr/lib/libc.so.6

Thread 2 (Thread 0x7faa64a9e700 (LWP 1343)):
#0  0x00007faa6f3fdc21 in poll () from /usr/lib/libc.so.6
#1  0x00007faa6f111630 in ?? () from /usr/lib/libxcb.so.1
#2  0x00007faa6f1132db in xcb_wait_for_event () from /usr/lib/libxcb.so.1
#3  0x00007faa65c47c5a in ?? () from /usr/lib/libQt5XcbQpa.so.5
#4  0x00007faa6f723f65 in ?? () from /usr/lib/libQt5Core.so.5
#5  0x00007faa6e50da9d in start_thread () from /usr/lib/libpthread.so.0
#6  0x00007faa6f408b23 in clone () from /usr/lib/libc.so.6

Thread 1 (Thread 0x7faa660d9840 (LWP 1341)):
[KCrash Handler]
#6  0x00007faa6f344d7f in raise () from /usr/lib/libc.so.6
#7  0x00007faa6f32f672 in abort () from /usr/lib/libc.so.6
#8  0x00007faa6f6e07fc in QMessageLogger::fatal(char const*, ...) const () from /usr/lib/libQt5Core.so.5
#9  0x00007faa6eaaec31 in QSGRenderLoop::handleContextCreationFailure(QQuickWindow*, bool) () from /usr/lib/libQt5Quick.so.5
#10 0x00007faa6eaafd72 in ?? () from /usr/lib/libQt5Quick.so.5
#11 0x00007faa6eab0435 in ?? () from /usr/lib/libQt5Quick.so.5
#12 0x00007faa6fd2ea95 in QWindow::event(QEvent*) () from /usr/lib/libQt5Gui.so.5
#13 0x00007faa6eb2ca5c in QQuickWindow::event(QEvent*) () from /usr/lib/libQt5Quick.so.5
#14 0x00007faa70342e14 in QApplicationPrivate::notify_helper(QObject*, QEvent*) () from /usr/lib/libQt5Widgets.so.5
#15 0x00007faa7034a6e1 in QApplication::notify(QObject*, QEvent*) () from /usr/lib/libQt5Widgets.so.5
#16 0x00007faa6f8d1c39 in QCoreApplication::notifyInternal2(QObject*, QEvent*) () from /usr/lib/libQt5Core.so.5
#17 0x00007faa6fd233b6 in QGuiApplicationPrivate::processExposeEvent(QWindowSystemInterfacePrivate::ExposeEvent*) () from /usr/lib/libQt5Gui.so.5
#18 0x00007faa6fd240ee in QGuiApplicationPrivate::processWindowSystemEvent(QWindowSystemInterfacePrivate::WindowSystemEvent*) () from /usr/lib/libQt5Gui.so.5
#19 0x00007faa6fcfda3c in QWindowSystemInterface::sendWindowSystemEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/libQt5Gui.so.5
#20 0x00007faa65cdddad in ?? () from /usr/lib/libQt5XcbQpa.so.5
#21 0x00007faa6f8d08cc in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/libQt5Core.so.5
#22 0x00007faa6f8d8bc6 in QCoreApplication::exec() () from /usr/lib/libQt5Core.so.5
#23 0x0000557ebd460a41 in ?? ()
#24 0x00007faa6f331223 in __libc_start_main () from /usr/lib/libc.so.6
#25 0x0000557ebd460c7e in _start ()
[Inferior 1 (process 1341) detached]

There's also an icon on my lower-right panel that says "Software renderer in use":

Current values are:
Rendering Background: Software
Render Loop: Automatic
GL Core Profile: False

If I change a value, every KDE application crashes even just shutting down the system so I have to ctrl+alt+f3 to shutdown.

What could be the problem here, may I ask?

I could provide further details if needed. Thank you

Last edited by c21253 (2018-11-14 13:55:30)

V1del

Forum Moderator

Registered: 2012-10-16

Posts: 25,381

Re: [SOLVED]KDE Plasma very slow and some KDE applications crash

Post a Xorg log.

nvidia-340xx is almost guaranteed to be the wrong driver, and you are more than likely to have an Optimus system which means your nvidia GPU is not hooked up to any display by default.  What exact laptop are we talking here? In any case remove nvidia-340xx and maybe read through https://wiki.archlinux.org/index.php/NVIDIA_Optimus (The using nvidia part if you intend to make full use of the nvidia card, or the link to bumblebee to disable it by default and only enable it on demand in order to save power)

Last edited by V1del (2018-11-14 09:28:02)

c21253

Member

Registered: 2018-10-24

Posts: 5

Re: [SOLVED]KDE Plasma very slow and some KDE applications crash

Apparently, it was a mistake of mine during installation that I chose nvidia-340xx instead of libgl. I have a 940mx on which nvidia-340xx wouldn't work so I guess that was the problem of the crash. I followed your steps and it solved my problem. Cheers!