https://bugs.kde.org/show_bug.cgi?id=465671
Bug ID: 465671
Summary: KWin Wayland hangs for a second while launching
browser with Junction
Classification: Plasma
Product: kwin
Version: 5.26.90
Platform: Other
OS: Linux
Status: REPORTED
Severity: normal
Priority: NOR
Component: wayland-generic
Assignee: kwin-bugs-n...@kde.org
Reporter: k...@hexchain.org
Target Milestone: ---
Created attachment 156194
--> https://bugs.kde.org/attachment.cgi?id=156194&action=edit
reproducer.js
SUMMARY
When using Junction (non-flatpak) to start the browser, the whole desktop
freezes for less than a second before the browser shows up. This does not
happen when it's running inside Flatpak.
I've nailed down the problem and attached a simple reproducer script.
STEPS TO REPRODUCE
1. Execute the script with GJS: gjs test.js
OBSERVED RESULT
Upon executing the script, the whole screen freezes for about a second.
This can be verified with some animated/moving things, e.g. glxgears or simply
moving the mouse.
In the journal, kwin_wayland prints some warnings from kf.services:
kwin_wayland[1398775]: kf.service.services: The desktop entry file
"/usr/share/applications/qemu.desktop" has Type= "Application" but no Exec line
kwin_wayland[1398775]: kf.service.sycoca: Invalid Service :
"/usr/share/applications/qemu.desktop"
kwin_wayland[1398775]: kf.service.sycoca: The menu spec file ( "" ) contains a
Layout or DefaultLayout tag without the mandatory Merge tag inside. Please fix
it.
EXPECTED RESULT
The screen should not freeze.
SOFTWARE/OS VERSIONS
Operating System: Arch Linux
KDE Plasma Version: 5.26.90
KDE Frameworks Version: 5.103.0
Qt Version: 5.15.8
Kernel Version: 6.1.10-arch1-1 (64-bit)
Graphics Platform: Wayland
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