https://bugs.kde.org/show_bug.cgi?id=470984
Bug ID: 470984 Summary: Various things fail to launch with errors saying "qt.qpa.xcb: could not connect to display" and "Detected locale "C" with character encoding "UTF-8", which is not UTF-8" Classification: Plasma Product: plasma-integration Version: master Platform: Other OS: Linux Status: REPORTED Keywords: qt6 Severity: grave Priority: NOR Component: general Assignee: plasma-b...@kde.org Reporter: n...@kde.org Target Milestone: --- When I open KRunner and click on its configure button, nothing visibly happens. `journalctl` shows what's going on: Jun 13 10:17:59 Liberator systemd[1401]: Started app-kcmshell6-1d22d2baeeab454b99025696db7821c1.scope - kcmshell6. Jun 13 10:17:59 Liberator kcmshell6[1038311]: Detected locale "C" with character encoding "UTF-8", which is not UTF-8. Qt depends on a UTF-8 locale, and has switched to "C.UTF-8" instead. If this causes problems, reconfigure your locale. See the locale(1) manual for more information. Jun 13 10:17:59 Liberator kcmshell6[1038311]: qt.qpa.xcb: could not connect to display Jun 13 10:17:59 Liberator audit[1038311]: ANOM_ABEND auid=1000 uid=1000 gid=1000 ses=3 subj=unconfined_u:unconfined_r:unconfined_t:s0-s0:c0.c1023 pid=1038311 comm="kcmshell6" exe="/home/nate/kde/usr6/bin/kcmshell6" sig=6 res=1 Jun 13 10:17:59 Liberator kcmshell6[1038311]: qt.qpa.plugin: Could not load the Qt platform plugin "xcb" in "" even though it was found. Jun 13 10:17:59 Liberator kcmshell6[1038311]: This application failed to start because no Qt platform plugin could be initialized. Reinstalling the application may fix this problem. Available platform plugins are: linuxfb, wayland-egl, eglfs, wayland, vnc, offscreen, minimal, minimalegl, vkkhrdisplay, xcb. Jun 13 10:17:59 Liberator audit: BPF prog-id=464 op=LOAD Jun 13 10:17:59 Liberator audit: BPF prog-id=465 op=LOAD Jun 13 10:17:59 Liberator audit: BPF prog-id=466 op=LOAD Jun 13 10:17:59 Liberator audit[1]: SERVICE_START pid=1 uid=0 auid=4294967295 ses=4294967295 subj=system_u:system_r:init_t:s0 msg='unit=systemd-coredump@41-1038313-0 comm="systemd" exe="/usr/lib/systemd/systemd" hostname=? addr=? terminal=? res=success' Jun 13 10:17:59 Liberator systemd[1]: Started systemd-coredump@41-1038313-0.service - Process Core Dump (PID 1038313/UID 0). The crash backtrace is not useful and just shows that it's dying in QGuiApplicationPrivate::createPlatformIntegration() #7 0x00007ffb1cb5bc32 in init_platform (pluginNamesWithArguments=..., platformPluginPath=..., platformThemeName=..., argc=@0x7ffec0c50f0c: 2, argv=argv@entry=0x7ffec0c51218) at /usr/src/debug/qt6-qtbase-6.5.1-1.fc38.x86_64/src/gui/kernel/qguiapplication.cpp:1257 #8 0x00007ffb1cbfede0 in QGuiApplicationPrivate::createPlatformIntegration (this=0xf260f0) at /usr/src/debug/qt6-qtbase-6.5.1-1.fc38.x86_64/src/gui/kernel/qguiapplication.cpp:1505 This issue was also seen today by Justin Zobel when trying to open the "Add new printer" dialog from the printers KCM. -- You are receiving this mail because: You are watching all bug changes.