| 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" | ||
|---|---|---|---|
| Product: | [Plasma] plasma-integration | Reporter: | Nate Graham <nate> |
| Component: | general | Assignee: | Plasma Bugs List <plasma-bugs> |
| Status: | RESOLVED FIXED | ||
| Severity: | grave | CC: | bugseforuns, fabian, josh, justin.zobel, kde |
| Priority: | NOR | Keywords: | qt6 |
| Version: | master | ||
| Target Milestone: | --- | ||
| Platform: | Other | ||
| OS: | Linux | ||
| Latest Commit: | https://invent.kde.org/frameworks/kio/-/commit/916984940f64e07db9b4d152be9f2a87dda0cfb4 | Version Fixed In: | |
| Sentry Crash Report: | |||
CCing some people who were involved in the discussion about this earlier today. *** Bug 470981 has been marked as a duplicate of this bug. *** *** Bug 470932 has been marked as a duplicate of this bug. *** A possibly relevant merge request was started @ https://invent.kde.org/frameworks/kio/-/merge_requests/1313 Git commit 916984940f64e07db9b4d152be9f2a87dda0cfb4 by Fabian Vogt. Committed on 13/06/2023 at 18:35. Pushed by fvogt into branch 'master'. KIO::CommandLauncherJob: Inherit environment variables by default Before Qt 6.3, an empty (default constructed) QProcessEnvironment caused QProcess to incorrectly inherit the environment variables from the parent process. This was fixed in qtbase 5fc9c02a695. Adjust for this behaviour change by explicitly inheriting the environment from the parent, to restore useful default behaviour of CommandLauncherJob. M +1 -1 src/gui/commandlauncherjob.cpp https://invent.kde.org/frameworks/kio/-/commit/916984940f64e07db9b4d152be9f2a87dda0cfb4 |
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.