今天当我打开 Manjaro KDE 桌面时，面板/任务栏完全消失了，我无法右键单击桌面。我仍然可以运行 Yakuke，以便能够访问终端，但是当我从中运行应用程序时，它们会出现延迟，留下数十个相同窗口的副本。当我关闭窗口时，它仍留在屏幕上。
我已经更新了我的系统，pacman并尝试了网上的几种解决方案，包括一个类似但旧的超级用户帖子（其贡献者不再活跃），尽管这些解决方案对我都不起作用。如有必要，我很乐意提供任何额外的输出。
plasmashell这是我从终端运行时的输出：
$ 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)
答案1
当计算机上某个原本可以正常工作的程序突然停止工作时，第一个问题应该是“发生了什么变化？”。
问题可能出在硬件上，但通常是软件导致的。首先应检查以下任一问题：
- 安装新产品，或更新现有产品
- 驱动程序更新
- 操作系统升级。
如果上述任何情况在问题开始前发生，则立即进行的测试是撤消更改。对于驱动程序，应将其从设备上卸载和从操作系统（或者它将在重新启动时返回）。
撤消更改后，重新启动并测试问题是否消失。如果成功，则应阻止此更新再次出现。
在这篇文章中，问题是由于安装网络打印机引起的。
答案2
问题是由我通过 Web 界面添加到 CUPS 的网络打印机引起的。我通过以下方式访问 Web 界面：http://本地主机:631/并删除了我添加的打印机。我不确定这为什么会导致 plasmashell 崩溃，但这修复了分段错误。我已在https://bugs.kde.org/从而找到根本原因。