https://bugs.kde.org/show_bug.cgi?id=434955
Bug ID: 434955
Summary: exception "assertion 'GDK_IS_DISPLAY (display)' failed
is" thrown with "SystemTray" Kotlin/Java library
Product: Breeze
Version: unspecified
Platform: Archlinux Packages
OS: Linux
Status: REPORTED
Severity: normal
Priority: NOR
Component: gtk theme
Assignee: uhh...@gmail.com
Reporter: solonova...@12oclockpoint.com
CC: plasma-b...@kde.org
Target Milestone: ---
SUMMARY
"assertion 'GDK_IS_DISPLAY (display)' failed" is thrown many times while using
the Kotlin/Java library "SystemTray"
Relevant issues:
- Suwayomi/Tachidesk issue: https://github.com/Suwayomi/Tachidesk/issues/38
- dorkbox/SystemTray issue: https://github.com/dorkbox/SystemTray/issues/142
We're currently unsure if the issue is being caused by SystemTray misusing the
API, or by Breeze-GTK doing something weird.
This only seems to occur with the Breeze GTK theme and no other themes. (Except
the "Default" theme in the KDE GTK settings menu??)
STEPS TO REPRODUCE
1. Enable Breeze theme
2. Run an application that contains the Kotlin/Java library "SystemTray" (eg.
the application "Tachidesk")
3. The following is logged about 10 times before the program hangs, and does
not do anything afterwards:
(java:343959): Gdk-CRITICAL **: 12:13:43.182:
gdk_x11_get_xatom_by_name_for_display: assertion 'GDK_IS_DISPLAY (display)'
failed
OBSERVED RESULT
Application logs many errors & ceases to respond.
EXPECTED RESULT
The application doesn't error.
SOFTWARE/OS VERSIONS
Operating System Version: Arch Linux x86_64 5.10.11-arch1-1
Display Server: X11
DE Version: Plasmashell 5.21.3
Qt Version: 5.15.2
KDE Frameworks Version: 5.80.0
GPU Version: Nvidia RTX 2070
GPU Driver Version: 460.67-3
Breeze Version: 5.21.3-1, packages `breeze` and `breeze-gtk` from the AUR
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