[SOLVED] KDE System Settings crashes when opening Desktop Theme

ShinyShinx · 2017-08-03 14:24:07

Hello

I've been having a real problem with KDE. Every single time I open the system settings application and try to change my theme, it instantly crashes. I already brought up the issue at https://bugs.kde.org/show_bug.cgi?id=383026 , but they said it was an issue with the shared libraries for the package and NOT the actual package itself.

I would really appreciate it if anybody could help me. This is keeping me from theme-ing my DE, and I am very picky about how things look

Last edited by ShinyShinx (2017-08-03 18:44:42)

V1del · 2017-08-03 14:30:37

That backtrace looks like a crash that might be associated with a microcode issue. If you have an intel cpu, make sure you properly install and apply them.

https://wiki.archlinux.org/index.php/Microcode

seth · 2017-08-03 15:02:39

These three kcms are in a different path than the others:

usr/lib/qt/plugins/kcms/kcm_desktoptheme.so
usr/lib/qt/plugins/kcms/kcm_lookandfeel.so
usr/lib/qt/plugins/kcms/kcm_splashscreen.so

And

the assert wrote:

Plugin search paths are ("/usr/lib/qt/plugins", "/usr/bin")
The environment variable QT_PLUGIN_PATH might be not correctly set

Interestingly enough, the code is invoked from /usr/lib/qt/plugins/kcms/kcm_desktoptheme.so

Try

QT_PLUGIN_PATH=/usr/lib/qt/plugins/kcms:/usr/lib/qt/plugins:/usr/bin systemsettings

ShinyShinx · 2017-08-03 16:28:02

Okay, so I ran the command that seth mentioned, reinstalled the intel-ucode package, updated the grub.cfg, rebooted, and then tried the command again. I also tried it normally, but none of it is working. Anything else I can try? Im at a loss here.

seth · 2017-08-03 18:03:44

The error message under the altered QT_PLUGIN_PATH environment should have changed (as well as the backtrace) - please provide the updated output.

ShinyShinx · 2017-08-03 18:16:39

Note: I had to add the "5" to the end of the system settings to launch System Settings. I hope thats what this was supposed to do ;-;

4.4 > themeowfest {~} $ >QT_PLUGIN_PATH=/usr/lib/qt/plugins/kcms:/usr/lib/qt/plugins:/usr/bin systemsettings5
WARNING: Cannot find style "org.kde.desktop" - fallback: "/usr/lib/qt/qml/QtQuick/Controls/Styles/Desktop"
Trying to use rootObject before initialization is completed, whilst using setInitializationDelayed. Forcing completion
WARNING: Cannot find style "org.kde.desktop" - fallback: "/usr/lib/qt/qml/QtQuick/Controls/Styles/Desktop"
"/home/themeowfest/.local/share/plasma/desktoptheme/metadata/metadata.desktop" has no desktop group, cannot construct a KPluginInfo object from it.
"/home/themeowfest/.local/share/plasma/desktoptheme/metadata/metadata.desktop" has no desktop group, cannot construct a KPluginInfo object from it.
Accessed invalid KPluginInfo object
KCrash: Application 'systemsettings5' crashing...
KCrash: Attempting to start /usr/lib/drkonqi from kdeinit
sock_file=/run/user/1000/kdeinit5__0

[1]+  Stopped                 QT_PLUGIN_PATH=/usr/lib/qt/plugins/kcms:/usr/lib/qt/plugins:/usr/bin systemsettings5
4.4 > themeowfest {~} $ >

And then the backtrace

 Application: System Settings (systemsettings5), signal: Aborted
Using host libthread_db library "/usr/lib/libthread_db.so.1".
[Current thread is 1 (Thread 0x7f0c74ae56c0 (LWP 5262))]

Thread 5 (Thread 0x7f0c442eb700 (LWP 5267)):
#0  0x00007f0c70707e9d in poll () from /usr/lib/libc.so.6
#1  0x00007f0c6a558c09 in ?? () from /usr/lib/libglib-2.0.so.0
#2  0x00007f0c6a558d1c in g_main_context_iteration () from /usr/lib/libglib-2.0.so.0
#3  0x00007f0c7103c084 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/libQt5Core.so.5
#4  0x00007f0c70fdfffb in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/libQt5Core.so.5
#5  0x00007f0c70df940e in QThread::exec() () from /usr/lib/libQt5Core.so.5
#6  0x00007f0c6f0ea1d5 in ?? () from /usr/lib/libQt5Qml.so.5
#7  0x00007f0c70dfe15b in ?? () from /usr/lib/libQt5Core.so.5
#8  0x00007f0c6c738049 in start_thread () from /usr/lib/libpthread.so.0
#9  0x00007f0c70711f0f in clone () from /usr/lib/libc.so.6

Thread 4 (Thread 0x7f0c4d162700 (LWP 5266)):
#0  0x00007f0c6a59da84 in g_mutex_unlock () from /usr/lib/libglib-2.0.so.0
#1  0x00007f0c6a5580e2 in g_main_context_prepare () from /usr/lib/libglib-2.0.so.0
#2  0x00007f0c6a558b3b in ?? () from /usr/lib/libglib-2.0.so.0
#3  0x00007f0c6a558d1c in g_main_context_iteration () from /usr/lib/libglib-2.0.so.0
#4  0x00007f0c7103c084 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/libQt5Core.so.5
#5  0x00007f0c70fdfffb in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/libQt5Core.so.5
#6  0x00007f0c70df940e in QThread::exec() () from /usr/lib/libQt5Core.so.5
#7  0x00007f0c6f0ea1d5 in ?? () from /usr/lib/libQt5Qml.so.5
#8  0x00007f0c70dfe15b in ?? () from /usr/lib/libQt5Core.so.5
#9  0x00007f0c6c738049 in start_thread () from /usr/lib/libpthread.so.0
#10 0x00007f0c70711f0f in clone () from /usr/lib/libc.so.6

Thread 3 (Thread 0x7f0c59028700 (LWP 5264)):
#0  0x00007f0c6a55815a in g_main_context_prepare () from /usr/lib/libglib-2.0.so.0
#1  0x00007f0c6a558b3b in ?? () from /usr/lib/libglib-2.0.so.0
#2  0x00007f0c6a558d1c in g_main_context_iteration () from /usr/lib/libglib-2.0.so.0
#3  0x00007f0c7103c084 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/libQt5Core.so.5
#4  0x00007f0c70fdfffb in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/libQt5Core.so.5
#5  0x00007f0c70df940e in QThread::exec() () from /usr/lib/libQt5Core.so.5
#6  0x00007f0c7195b396 in ?? () from /usr/lib/libQt5DBus.so.5
#7  0x00007f0c70dfe15b in ?? () from /usr/lib/libQt5Core.so.5
#8  0x00007f0c6c738049 in start_thread () from /usr/lib/libpthread.so.0
#9  0x00007f0c70711f0f in clone () from /usr/lib/libc.so.6

Thread 2 (Thread 0x7f0c61e3a700 (LWP 5263)):
#0  0x00007f0c70707e9d in poll () from /usr/lib/libc.so.6
#1  0x00007f0c6cfbc8e0 in ?? () from /usr/lib/libxcb.so.1
#2  0x00007f0c6cfbe679 in xcb_wait_for_event () from /usr/lib/libxcb.so.1
#3  0x00007f0c649d572a in ?? () from /usr/lib/libQt5XcbQpa.so.5
#4  0x00007f0c70dfe15b in ?? () from /usr/lib/libQt5Core.so.5
#5  0x00007f0c6c738049 in start_thread () from /usr/lib/libpthread.so.0
#6  0x00007f0c70711f0f in clone () from /usr/lib/libc.so.6

Thread 1 (Thread 0x7f0c74ae56c0 (LWP 5262)):
[KCrash Handler]
#5  0x00007f0c706578c0 in raise () from /usr/lib/libc.so.6
#6  0x00007f0c70658f72 in abort () from /usr/lib/libc.so.6
#7  0x00007f0c70de89a8 in QMessageLogger::fatal(char const*, ...) const () from /usr/lib/libQt5Core.so.5
#8  0x00007f0c7205308b in ?? () from /usr/lib/libKF5Service.so.5
#9  0x00007f0c72086007 in KPluginInfo::version() const () from /usr/lib/libKF5Service.so.5
#10 0x00007f0c4dfc30b1 in ?? () from /usr/lib/libKF5Plasma.so.5
#11 0x00007f0c4dfb855b in Plasma::Theme::findInRectsCache(QString const&, QString const&, QRectF&) const () from /usr/lib/libKF5Plasma.so.5
#12 0x00007f0c4dfaf7ae in ?? () from /usr/lib/libKF5Plasma.so.5
#13 0x00007f0c4dfb0a68 in ?? () from /usr/lib/libKF5Plasma.so.5
#14 0x00007f0c4dfb0b8b in Plasma::Svg::setTheme(Plasma::Theme*) () from /usr/lib/libKF5Plasma.so.5
#15 0x00007f0c442f134b in ?? () from /usr/lib/qt/plugins/kcms/kcm_desktoptheme.so
#16 0x00007f0c442f5d66 in ?? () from /usr/lib/qt/plugins/kcms/kcm_desktoptheme.so
#17 0x00007f0c6f09e2c9 in ?? () from /usr/lib/libQt5Qml.so.5
#18 0x00007f0c6f01b839 in ?? () from /usr/lib/libQt5Qml.so.5
#19 0x00007f0c6f01d57e in ?? () from /usr/lib/libQt5Qml.so.5
#20 0x00007f0c6f01e269 in QV4::QObjectMethod::callInternal(QV4::CallData*, QV4::Scope&) const () from /usr/lib/libQt5Qml.so.5
#21 0x00007f0c6f03726a in QV4::Runtime::method_callProperty(QV4::ExecutionEngine*, int, QV4::CallData*) () from /usr/lib/libQt5Qml.so.5
#22 0x00007f0c425a0c09 in ?? ()
#23 0x000000a14ecf4810 in ?? ()
#24 0x0d978b35cb2fee00 in ?? ()
#25 0x00007ffee345be10 in ?? ()
#26 0x0000000000000000 in ?? ()

I hope it helps

seth · 2017-08-03 18:33:48

Yes, the warning about the missing lib is (probably) a red herring - and gone.

This looks fishy:

"/home/themeowfest/.local/share/plasma/desktoptheme/metadata/metadata.desktop" has no desktop group, cannot construct a KPluginInfo object from it.
"/home/themeowfest/.local/share/plasma/desktoptheme/metadata/metadata.desktop" has no desktop group, cannot construct a KPluginInfo object from it.
Accessed invalid KPluginInfo object

What is this file and what happens if you

mv /home/themeowfest/.local/share/plasma/desktoptheme /home/themeowfest/no.desktoptheme

and try again. (First w/ the export, then w/o in case)

Sorry about the systemsettings vs. systemsettings5 thing, I lost track on plasma's counting mechanism ;-)

ShinyShinx · 2017-08-03 18:43:08

I dunno what that did, but it worked.
So thank you!

I also just want to point out that this was working in the beginning when I first themed my Arch, but then mysteriously stopped. I must have done something to accidentally move it?

seth · 2017-08-03 18:48:20

I'd say the configured theme is kinda bonkers, but am not sure whether the handling by the kcm can be described as "graceful" - if you didn't delete it, you may want to update the bug report and upload the directory you moved away.

---
rooOOOAARRrrr ;-)

Arch Linux

#1 2017-08-03 14:24:07

[SOLVED] KDE System Settings crashes when opening Desktop Theme

#2 2017-08-03 14:30:37

Re: [SOLVED] KDE System Settings crashes when opening Desktop Theme

#3 2017-08-03 15:02:39

Re: [SOLVED] KDE System Settings crashes when opening Desktop Theme

#4 2017-08-03 16:28:02

Re: [SOLVED] KDE System Settings crashes when opening Desktop Theme

#5 2017-08-03 18:03:44

Re: [SOLVED] KDE System Settings crashes when opening Desktop Theme

#6 2017-08-03 18:16:39

Re: [SOLVED] KDE System Settings crashes when opening Desktop Theme

#7 2017-08-03 18:33:48

Re: [SOLVED] KDE System Settings crashes when opening Desktop Theme

#8 2017-08-03 18:43:08

Re: [SOLVED] KDE System Settings crashes when opening Desktop Theme

#9 2017-08-03 18:48:20

Re: [SOLVED] KDE System Settings crashes when opening Desktop Theme

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