https://bugs.kde.org/show_bug.cgi?id=514039
Bug ID: 514039
Summary: Autostarted applications crash on Plasma 6 Wayland
because they launch before the session is ready
Classification: Plasma
Product: plasmashell
Version First 6.5.4
Reported In:
Platform: Arch Linux
OS: Linux
Status: REPORTED
Severity: normal
Priority: NOR
Component: Startup process
Assignee: [email protected]
Reporter: [email protected]
CC: [email protected]
Target Milestone: 1.0
Applications started via Autostart in Plasma 6 on Wayland are launched before
the graphical session is fully ready. As a result, several applications crash
at login with errors such as Failed to create wl_display or qt.qpa.xcb: could
not connect to display. The systemd-user autostart units should wait for the
Wayland session (or compositor availability) before execution to prevent these
early-start failures.
SUMMARY
STEPS TO REPRODUCE
1. Install KDE Plasma with Wayland.
2. Add applications to autostart using .desktop files.
3. Log out and log back in, or reboot the system.
OBSERVED RESULT
Applications fail to start and crash with errors such as “Failed to create
wl_display (No such file or directory)” or “qt.qpa.xcb: could not connect to
display”.
EXPECTED RESULT
Autostarted applications should only launch after the Wayland session is fully
initialized, allowing them to successfully connect to the display and start
without errors or crashes.
SOFTWARE/OS VERSIONS
Linux/KDE Plasma:
KDE Plasma Version: 6.5.4
KDE Frameworks Version: 6.21.0
Qt Version: 6.10.1
Kernel Version: 6.18.2-arch2-1 (64-bit)
Graphics Platform: Wayland
Hardware:
Processors: 4 × Intel® Core™ i3-8100 CPU @ 3.60GHz
Memory: 8 GiB RAM
Graphics Processor: Intel® UHD Graphics 630
Storage device: SAMSUNG HD154UI 1,5 TB, 5400 RPM SATA2
ADDITIONAL INFORMATION
I suspect this might be happening because of the slow storage device. I'm not
sure which exact version it started in, but it was in November. As a
workaround, I created a small script to delay the startup of the affected
applications by a few seconds. This works because it ensures the Wayland
display (wl_display) is available before the applications are launched.
However, this is not a proper solution since Autostart should already wait for
the session to be ready.
Script:
#!/bin/bash
sleep 5
copyq --start-server & disown
keepassxc & disown
/home/lucas/scripts/easy.effects_in_background.sh & disown
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