Bug 412201

Summary:	Panel disappears and desktop cannot right-click on login
Product:	[Plasma] plasmashell	Reporter:	thomascraig
Component:	Panel	Assignee:	Plasma Bugs List <plasma-bugs-null>
Status:	RESOLVED WORKSFORME
Severity:	major	CC:	nate, notmart
Priority:	NOR
Version First Reported In:	master
Target Milestone:	1.0
Platform:	Manjaro
OS:	Linux
Latest Commit:		Version Fixed/Implemented In:
Sentry Crash Report:

Description thomascraig 2019-09-22 16:01:25 UTC

SUMMARY


STEPS TO REPRODUCE
1. 
2. 
3. 

OBSERVED RESULT
When I logged in the other day, my desktop panel disappeared and I could not right-click my desktop.  I have tried running plasmashell from the terminal, but it results in a segfault.  I think it may have to do with CUPS as the past week, I set up a network printer over the web interface.  Here is the output of running plasmashell in the terminal:


$ plasmashell 
Icon theme "ubuntu-mono-dark" not found.
invalid metadata "/usr/lib/qt/plugins/kfileaudiopreview.so"
invalid metadata "/usr/lib/qt/plugins/jpegthumbnail.so"
invalid metadata "/usr/lib/qt/plugins/icon_mode.so"
invalid metadata "/usr/lib/qt/plugins/krunner_shell.so"
invalid metadata "/usr/lib/qt/plugins/fileviewdropboxplugin.so"
invalid metadata "/usr/lib/qt/plugins/djvuthumbnail.so"
invalid metadata "/usr/lib/qt/plugins/kdeconnect_runcommand_config.so"
invalid metadata "/usr/lib/qt/plugins/rawthumbnail.so"
invalid metadata "/usr/lib/qt/plugins/gsthumbnail.so"
invalid metadata "/usr/lib/qt/plugins/imagethumbnail.so"
invalid metadata "/usr/lib/qt/plugins/kcm_clock.so"
invalid metadata "/usr/lib/qt/plugins/powerdevilwirelesspowersavingaction_config.so"
invalid metadata "/usr/lib/qt/plugins/kcm_nic.so"
invalid metadata "/usr/lib/qt/plugins/kcm_hotkeys.so"
invalid metadata "/usr/lib/qt/plugins/fileviewbazaarplugin.so"
invalid metadata "/usr/lib/qt/plugins/opendocumentthumbnail.so"
invalid metadata "/usr/lib/qt/plugins/kcm_dolphinviewmodes.so"
invalid metadata "/usr/lib/qt/plugins/kio_fonts.so"
invalid metadata "/usr/lib/qt/plugins/kritathumbnail.so"
invalid metadata "/usr/lib/qt/plugins/kcm_ssl.so"
invalid metadata "/usr/lib/qt/plugins/krunner_plasma-desktop.so"
invalid metadata "/usr/lib/qt/plugins/kcm_kscreen.so"
invalid metadata "/usr/lib/qt/plugins/kcm_sddm.so"
invalid metadata "/usr/lib/qt/plugins/attica_kde.so"
invalid metadata "/usr/lib/qt/plugins/krunner_converter.so"
invalid metadata "/usr/lib/qt/plugins/kcm_plasmasearch.so"
invalid metadata "/usr/lib/qt/plugins/sambausershareplugin.so"
invalid metadata "/usr/lib/qt/plugins/kio_msits.so"
invalid metadata "/usr/lib/qt/plugins/kcm_desktoppaths.so"
invalid metadata "/usr/lib/qt/plugins/krunner_locations.so"
invalid metadata "/usr/lib/qt/plugins/kcmspellchecking.so"
invalid metadata "/usr/lib/qt/plugins/gvpart.so"
invalid metadata "/usr/lib/qt/plugins/krunner_spellcheck.so"
invalid metadata "/usr/lib/qt/plugins/kcm_smserver.so"
invalid metadata "/usr/lib/qt/plugins/kcm_kwallet5.so"
invalid metadata "/usr/lib/qt/plugins/kcm_kdeconnect.so"
invalid metadata "/usr/lib/qt/plugins/comicbookthumbnail.so"
invalid metadata "/usr/lib/qt/plugins/windowsexethumbnail.so"
invalid metadata "/usr/lib/qt/plugins/kcm_systemd.so"
invalid metadata "/usr/lib/qt/plugins/krunner_kill.so"
invalid metadata "/usr/lib/qt/plugins/windowsimagethumbnail.so"
invalid metadata "/usr/lib/qt/plugins/kcm_standard_actions.so"
invalid metadata "/usr/lib/qt/plugins/kcm_style.so"
invalid metadata "/usr/lib/qt/plugins/kcm_keys.so"
invalid metadata "/usr/lib/qt/plugins/kcm_opengl.so"
invalid metadata "/usr/lib/qt/plugins/fontthumbnail.so"
invalid metadata "/usr/lib/qt/plugins/exrthumbnail.so"
invalid metadata "/usr/lib/qt/plugins/textthumbnail.so"
invalid metadata "/usr/lib/qt/plugins/kwincompositing.so"
invalid metadata "/usr/lib/qt/plugins/krunner_datetime.so"
invalid metadata "/usr/lib/qt/plugins/kcm_view1394.so"
invalid metadata "/usr/lib/qt/plugins/kcm_pci.so"
invalid metadata "/usr/lib/qt/plugins/kcm_baloofile.so"
invalid metadata "/usr/lib/qt/plugins/powerdevildimdisplayaction_config.so"
invalid metadata "/usr/lib/qt/plugins/krunner_webshortcuts.so"
invalid metadata "/usr/lib/qt/plugins/libkcm_device_automounter.so"
invalid metadata "/usr/lib/qt/plugins/kcm_fontinst.so"
invalid metadata "/usr/lib/qt/plugins/krunner_bookmarksrunner.so"
invalid metadata "/usr/lib/qt/plugins/kded_touchpad.so"
invalid metadata "/usr/lib/qt/plugins/kcm_emoticons.so"
invalid metadata "/usr/lib/qt/plugins/kcm_webshortcuts.so"
invalid metadata "/usr/lib/qt/plugins/user_manager.so"
invalid metadata "/usr/lib/qt/plugins/kcm_autostart.so"
invalid metadata "/usr/lib/qt/plugins/kcm_memory.so"
invalid metadata "/usr/lib/qt/plugins/kcm_trash.so"
invalid metadata "/usr/lib/qt/plugins/powerdevilkeyboardbrightnesscontrolaction_config.so"
invalid metadata "/usr/lib/qt/plugins/kcm_kget_metalinkfactory.so"
invalid metadata "/usr/lib/qt/plugins/msm_timedate.so"
invalid metadata "/usr/lib/qt/plugins/kfontviewpart.so"
invalid metadata "/usr/lib/qt/plugins/kstyle_oxygen_config.so"
invalid metadata "/usr/lib/qt/plugins/kdeconnect_pausemusic_config.so"
invalid metadata "/usr/lib/qt/plugins/kcm_keyboard.so"
invalid metadata "/usr/lib/qt/plugins/svgthumbnail.so"
invalid metadata "/usr/lib/qt/plugins/kded_printmanager.so"
invalid metadata "/usr/lib/qt/plugins/krunner_services.so"
invalid metadata "/usr/lib/qt/plugins/appimagethumbnail.so"
invalid metadata "/usr/lib/qt/plugins/msm_locale.so"
invalid metadata "/usr/lib/qt/plugins/kstyle_breeze_config.so"
invalid metadata "/usr/lib/qt/plugins/krunner_konsoleprofiles.so"
invalid metadata "/usr/lib/qt/plugins/kcm_powerdevilglobalconfig.so"
invalid metadata "/usr/lib/qt/plugins/kcm_networkmanagement.so"
invalid metadata "/usr/lib/qt/plugins/powerdevildpmsaction.so"
invalid metadata "/usr/lib/qt/plugins/kcm_dolphingeneral.so"
invalid metadata "/usr/lib/qt/plugins/kio_obexftp.so"
invalid metadata "/usr/lib/qt/plugins/kio_bluetooth.so"
invalid metadata "/usr/lib/qt/plugins/kdeconnect_share_config.so"
invalid metadata "/usr/lib/qt/plugins/kcm_krunner_spellcheck.so"
invalid metadata "/usr/lib/qt/plugins/msm_kernel.so"
invalid metadata "/usr/lib/qt/plugins/krunner_recentdocuments.so"
invalid metadata "/usr/lib/qt/plugins/kcm_about_distro.so"
invalid metadata "/usr/lib/qt/plugins/powerdevildpmsaction_config.so"
invalid metadata "/usr/lib/qt/plugins/kcm_solid_actions.so"
invalid metadata "/usr/lib/qt/plugins/krunner_charrunner.so"
invalid metadata "/usr/lib/qt/plugins/krunner_windowedwidgets.so"
invalid metadata "/usr/lib/qt/plugins/kcm_printer_manager.so"
invalid metadata "/usr/lib/qt/plugins/kcm_info.so"
invalid metadata "/usr/lib/qt/plugins/kcm_samba.so"
invalid metadata "/usr/lib/qt/plugins/kcm_kgamma.so"
invalid metadata "/usr/lib/qt/plugins/plasma-geolocation-gps.so"
invalid metadata "/usr/lib/qt/plugins/krunner_sessions.so"
invalid metadata "/usr/lib/qt/plugins/msm_language_packages.so"
invalid metadata "/usr/lib/qt/plugins/kcm_activities.so"
invalid metadata "/usr/lib/qt/plugins/kcm_joystick.so"
invalid metadata "/usr/lib/qt/plugins/ffmpegthumbs.so"
invalid metadata "/usr/lib/qt/plugins/okularpart.so"
invalid metadata "/usr/lib/qt/plugins/ebookthumbnail.so"
invalid metadata "/usr/lib/qt/plugins/krunner_dictionary.so"
invalid metadata "/usr/lib/qt/plugins/kget_browser_integration.so"
invalid metadata "/usr/lib/qt/plugins/dolphinpart.so"
invalid metadata "/usr/lib/qt/plugins/krunner_powerdevil.so"
invalid metadata "/usr/lib/qt/plugins/plasma-geolocation-ip.so"
invalid metadata "/usr/lib/qt/plugins/kcm_kget_mmsfactory.so"
invalid metadata "/usr/lib/qt/plugins/powerdevilhandlebuttoneventsaction_config.so"
invalid metadata "/usr/lib/qt/plugins/kcm_kwintabbox.so"
invalid metadata "/usr/lib/qt/plugins/kdeconnect_sendnotifications_config.so"
invalid metadata "/usr/lib/qt/plugins/fileviewsvnplugin.so"
invalid metadata "/usr/lib/qt/plugins/kcm_kwinoptions.so"
invalid metadata "/usr/lib/qt/plugins/libkcm_qtquicksettings.so"
invalid metadata "/usr/lib/qt/plugins/krunner_katesessions.so"
invalid metadata "/usr/lib/qt/plugins/mltpreview.so"
invalid metadata "/usr/lib/qt/plugins/kcm_usb.so"
invalid metadata "/usr/lib/qt/plugins/kcm_phonon.so"
invalid metadata "/usr/lib/qt/plugins/powerdevilbrightnesscontrolaction_config.so"
invalid metadata "/usr/lib/qt/plugins/kcm_krunner_kill.so"
invalid metadata "/usr/lib/qt/plugins/blenderthumbnail.so"
invalid metadata "/usr/lib/qt/plugins/kcm_krunner_charrunner.so"
invalid metadata "/usr/lib/qt/plugins/kcm_mouse.so"
invalid metadata "/usr/lib/qt/plugins/kcm_kamera.so"
invalid metadata "/usr/lib/qt/plugins/kcm_powerdevilprofilesconfig.so"
invalid metadata "/usr/lib/qt/plugins/kdeconnectfileitemaction.so"
invalid metadata "/usr/lib/qt/plugins/kcm_powerdevilactivitiesconfig.so"
invalid metadata "/usr/lib/qt/plugins/kcm_kio.so"
invalid metadata "/usr/lib/qt/plugins/libplasmanetworkmanagement_openconnectui.so"
invalid metadata "/usr/lib/qt/plugins/kcm_filetypes.so"
invalid metadata "/usr/lib/qt/plugins/powerdevilsuspendsessionaction_config.so"
invalid metadata "/usr/lib/qt/plugins/kcm_kded.so"
invalid metadata "/usr/lib/qt/plugins/kcm_kget_multisegkiofactory.so"
invalid metadata "/usr/lib/qt/plugins/kstyle_qtcurve5_config.so"
invalid metadata "/usr/lib/qt/plugins/fileviewhgplugin.so"
invalid metadata "/usr/lib/qt/plugins/kcm_kwin_scripts.so"
invalid metadata "/usr/lib/qt/plugins/miloutextplugin.so"
invalid metadata "/usr/lib/qt/plugins/baloofilepropertiesplugin.so"
invalid metadata "/usr/lib/qt/plugins/msm_keyboard.so"
invalid metadata "/usr/lib/qt/plugins/audiothumbnail.so"
invalid metadata "/usr/lib/qt/plugins/fileviewgitplugin.so"
invalid metadata "/usr/lib/qt/plugins/krunner_calculatorrunner.so"
invalid metadata "/usr/lib/qt/plugins/krunner_windows.so"
invalid metadata "/usr/lib/qt/plugins/msm_mhwd.so"
invalid metadata "/usr/lib/qt/plugins/krunner_kwin.so"
invalid metadata "/usr/lib/qt/plugins/powerdevilrunscriptaction_config.so"
invalid metadata "/usr/lib/qt/plugins/krunner_appstream.so"
invalid metadata "/usr/lib/qt/plugins/kcm_kwinrules.so"
invalid metadata "/usr/lib/qt/plugins/kcm_krunner_dictionary.so"
invalid metadata "/usr/lib/qt/plugins/kcm_componentchooser.so"
invalid metadata "/usr/lib/qt/plugins/kcm_access.so"
invalid metadata "/usr/lib/qt/plugins/kcm_kwinscreenedges.so"
invalid metadata "/usr/lib/qt/plugins/kcm_dolphinnavigation.so"
invalid metadata "/usr/lib/qt/plugins/classic_mode.so"
invalid metadata "/usr/lib/qt/plugins/systemsettings_sidebar_mode.so"
invalid metadata "/usr/lib/qt/plugins/krunner_activities.so"
invalid metadata "/usr/lib/qt/plugins/msm_users.so"
invalid metadata "/usr/lib/qt/plugins/kcm_kget_checksumsearchfactory.so"
invalid metadata "/usr/lib/qt/plugins/kcm_devinfo.so"
invalid metadata "/usr/lib/qt/plugins/kcm_kget_mirrorsearchfactory.so"
invalid metadata "/usr/lib/qt/plugins/krunner_placesrunner.so"
invalid metadata "/usr/lib/qt/plugins/kcm_kwintouchscreen.so"
invalid metadata "/usr/lib/qt/plugins/kcm_kget_bittorrentfactory.so"
invalid metadata "/usr/lib/qt/plugins/kio_kamera.so"
invalid metadata "/usr/lib/qt/plugins/kcm_dolphinservices.so"
org.kde.plasmaquick: Applet preload policy set to 1
file:///usr/share/plasma/wallpapers/org.kde.image/contents/ui/main.qml:71:9: Unable to assign [undefined] to QStringList
file:///usr/share/plasma/wallpapers/org.kde.image/contents/ui/main.qml:71:9: Unable to assign [undefined] to QStringList
trying to show an empty dialog
file:///usr/share/plasma/shells/org.kde.plasma.desktop/contents/views/Desktop.qml:146:19: QML Loader: Binding loop detected for property "height"
file:///usr/share/plasma/shells/org.kde.plasma.desktop/contents/views/Desktop.qml:146:19: QML Loader: Binding loop detected for property "height"
file:///usr/share/plasma/wallpapers/org.kde.image/contents/ui/main.qml:71:9: Unable to assign [undefined] to QStringList
file:///usr/share/plasma/wallpapers/org.kde.image/contents/ui/main.qml:71:9: Unable to assign [undefined] to QStringList
trying to show an empty dialog
file:///usr/share/plasma/shells/org.kde.plasma.desktop/contents/views/Desktop.qml:146:19: QML Loader: Binding loop detected for property "height"
file:///usr/share/plasma/shells/org.kde.plasma.desktop/contents/views/Desktop.qml:146:19: QML Loader: Binding loop detected for property "height"
file:///usr/share/plasma/plasmoids/org.kde.desktopcontainment/contents/ui/FolderItemDelegate.qml:302:17: QML QQuickText: Binding loop detected for property "width"
file:///usr/share/plasma/plasmoids/org.kde.desktopcontainment/contents/ui/FolderItemDelegate.qml:302:17: QML QQuickText: Binding loop detected for property "width"
file:///usr/share/plasma/plasmoids/org.kde.desktopcontainment/contents/ui/FolderItemDelegate.qml:302:17: QML QQuickText: Binding loop detected for property "width"
Connecting to deprecated signal QDBusConnectionInterface::serviceOwnerChanged(QString,QString,QString)
Both point size and pixel size set. Using pixel size.
Both point size and pixel size set. Using pixel size.
Both point size and pixel size set. Using pixel size.
trying to show an empty dialog
trying to show an empty dialog
libkcups: CUPS-Get-Printers last error: 0 successful-ok
libkcups: Create-Printer-Subscriptions last error: 0 successful-ok
libkcups: Get-Jobs last error: 0 successful-ok
libkcups: Get-Jobs last error: 0 successful-ok
Plasma Shell startup completed
libkcups: 3 "Brother_MFC-J285DW"
libkcups: 5 "Canon_MG5500_series"
libkcups: 3
KCrash: Attempting to start /usr/bin/plasmashell from kdeinit
sock_file=/run/user/1000/kdeinit5__0
QSocketNotifier: Invalid socket 8 and type 'Read', disabling...
QSocketNotifier: Invalid socket 9 and type 'Read', disabling...
QSocketNotifier: Invalid socket 51 and type 'Read', disabling...
KCrash: crashing... crashRecursionCounter = 2
KCrash: Application Name = plasmashell path = /usr/bin pid = 4113
KCrash: Arguments: /usr/bin/plasmashell 
Segmentation fault (core dumped)


EXPECTED RESULT


SOFTWARE/OS VERSIONS
Windows: 
macOS: 
Linux/KDE Plasma: 
(available in About System)
KDE Plasma Version: 
KDE Frameworks Version: 
Qt Version: 

ADDITIONAL INFORMATION

Comment 1 thomascraig 2019-09-22 17:23:39 UTC

I have just fixed this issue by going into the cups web interface at http://localhost:631/printers/ and removing the netowork printer I recently added.  I then ran `$ plasmashell` and the panel loaded without a segmentation fault.  I am still unsure why a network printer would cause a segfault in plasma shell though.

Comment 2 Marco Martin 2021-01-28 10:02:35 UTC

can you reproduce with a backtrace?

Comment 3 Nate Graham 2021-05-07 18:26:31 UTC

That means Plasma crashed. As Marco says, we will need a backtrace of the crash, if you can still reprpoduce this issue with the latest version of Plasma. See https://community.kde.org/Guidelines_and_HOWTOs/Debugging/How_to_create_useful_crash_reports

Comment 4 Bug Janitor Service 2021-05-22 04:33:40 UTC

Dear Bug Submitter,

This bug has been in NEEDSINFO status with no change for at least
15 days. Please provide the requested information as soon as
possible and set the bug status as REPORTED. Due to regular bug
tracker maintenance, if the bug is still in NEEDSINFO status with
no change in 30 days the bug will be closed as RESOLVED > WORKSFORME
due to lack of needed information.

For more information about our bug triaging procedures please read the
wiki located here:
https://community.kde.org/Guidelines_and_HOWTOs/Bug_triaging

If you have already provided the requested information, please
mark the bug as REPORTED so that the KDE team knows that the bug is
ready to be confirmed.

Thank you for helping us make KDE software even better for everyone!

Comment 5 Bug Janitor Service 2021-06-06 04:33:35 UTC

This bug has been in NEEDSINFO status with no change for at least
30 days. The bug is now closed as RESOLVED > WORKSFORME
due to lack of needed information.

For more information about our bug triaging procedures please read the
wiki located here:
https://community.kde.org/Guidelines_and_HOWTOs/Bug_triaging

Thank you for helping us make KDE software even better for everyone!