| Summary: | kwin_wayland and su - or: how to point $WAYLAND_DISPLAY to another location as the default? | ||
|---|---|---|---|
| Product: | [Plasma] kwin | Reporter: | Andreas Hartmann <andihartmann> |
| Component: | wayland-generic | Assignee: | KWin default assignee <kwin-bugs-null> |
| Status: | RESOLVED NOT A BUG | ||
| Severity: | normal | CC: | nate |
| Priority: | NOR | ||
| Version First Reported In: | 5.26.4 | ||
| Target Milestone: | --- | ||
| Platform: | openSUSE | ||
| OS: | Linux | ||
| Latest Commit: | Version Fixed/Implemented In: | ||
| Sentry Crash Report: | |||
This isn't a KWin bug or feature request; please direct technical or development-related Wayland-related questions elsewhere, like maybe the Wayland mailing list. Thanks! |
SUMMARY *** To be able to run wayland apps in another user context (after su e.g.), the app needs access to $XDG_RUNTIME_DIR/$WAYLAND_DISPLAY. To achieve access to $XDG_RUNTIME_DIR/$WAYLAND_DISPLAY for the su user, the directory rights of $XDG_RUNTIME_DIR must be changed to group rx to get access to $XDG_RUNTIME_DIR/$WAYLAND_DISPLAY for the su user (using chmod or setfacl). If you do this, the log is spammed with entries like this: [krunner|kioslave5|dolphin|plsamashell|ksmserver|kded|..] QStandardPaths: wrong permissions on runtime directory /run/user/1000, 0750 instead of 0700 Setting a different $WAYLAND_DISPLAY like /tmp/${USER}_WAYLAND (in /etc/profile.d/) does not work, because plasma wayland session afterwards won't start at all (through sddm e.g.): (from /.local/share/sddm/wayland-session.log) ------------------------------------------------------------------------------------------ Error: could not determine $DISPLAY. Error: Can not contact kdeinit5! org.kde.startup: "kdeinit5_shutdown" () exited with code 255 startplasma-wayland: Shutting down... startplasmacompositor: Shutting down... startplasmacompositor: Done. ------------------------------------------------------------------------------------------- How is it supposed to run wayland apps as another user without spamming the log files? *** STEPS TO REPRODUCE 1. export WAYLAND_DISPLAY=/tmp/${USER}_wayland in /etc/profile.d/wayland.sh 2. Start wayland session in sddm for the primary user 3. OBSERVED RESULT Wayland session doesn't start. EXPECTED RESULT Wayland session should start using wayland display /tmp/${USER}_wayland instead of $XDG_RUNTIME_DIR/$WAYLAND_DISPLAY. SOFTWARE/OS VERSIONS Linux/KDE Plasma: 5.26.4 (available in About System) KDE Plasma Version: 5.26.4 KDE Frameworks Version: 5.100.0 Qt Version: 5.15.7