If you are running Wayland then 'env' will show: XDG_SESSION_TYPE=wayland WAYLAND_DISPLAY=wayland-0
I don't know if GNOME Shell supports passing through X11 icon properties in a Wayland session. Please try selecting 'Ubuntu on Xorg' from the menu on the login screen so we can confirm if it works there. That all said, if the Java apps are using Qt or any other modern toolkit then they might bypass X11 altogether and run as native Wayland. If so then there are no X11 icon properties in the app to be displayed. Ideally please create .desktop files for each app to tell the system which icon to display. The icon also needs to be installed separately on disk. -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to gnome-shell-extension-ubuntu-dock in Ubuntu. https://bugs.launchpad.net/bugs/2078657 Title: Regression: Ubuntu 24.04.1 does not show icons of our apps on dash Status in gnome-shell-extension-ubuntu-dock package in Ubuntu: Incomplete Bug description: My company develops applications using pure Java (two apps) and QtJambi (Java wrapped for Qt 5, 1 app). After updating my system from Ubuntu 22.04.3 to Ubuntu 24.04.1 the icons of our application disappeared, while other applications have their icons as expected. The list of unaffected applications: - Firefox - Terminal - VS Code - GitKraken - Zoom - Shutter - System Monitor - ...many others How to debug why the icons for the our applications are missing? Why they are disappeared after update 22.04.3 -> 24.04.1? The applications was not recompiled since update. Below the report from the Ubuntu "Система" dialog (dialog opened by gear icon from power menu): # Отчет о подробностях системы --- ## Подробности отчета - **Дата создания:** 2024-09-02 10:05:55 ## Аппаратная информация: - **Модель оборудования:** ASUS All Series - **Память:** 32,0 ГиБ - **Процессор:** Intel® Core™ i7-4770 × 8 - **Графика:** Intel® HD Graphics 4600 (HSW GT2) - **Ёмкость диска:** 620,1 ГБ ## Программная информация: - **Версия прошивки:** 0807 - **Название ОС:** Ubuntu 24.04.1 LTS - **Сборка ОС:** (null) - **Тип ОС:** 64-бит - **Версия GNOME:** 46 - **Оконный интерфейс:** X11 - **Версия ядра:** Linux 6.8.0-41-generic I attach an image how it looks. ProblemType: Bug DistroRelease: Ubuntu 24.04 Package: gnome-shell-extension-ubuntu-dock 90ubuntu1 ProcVersionSignature: Ubuntu 6.8.0-41.41-generic 6.8.12 Uname: Linux 6.8.0-41-generic x86_64 ApportVersion: 2.28.1-0ubuntu3.1 Architecture: amd64 CasperMD5CheckResult: unknown CurrentDesktop: ubuntu:GNOME Date: Mon Sep 2 10:20:05 2024 InstallationDate: Installed on 2020-11-24 (1378 days ago) InstallationMedia: Ubuntu 18.04.3 LTS "Bionic Beaver" - Release amd64 (20190805) PackageArchitecture: all ProcEnviron: LANG=ru_RU.UTF-8 PATH=(custom, no user) SHELL=/bin/bash TERM=xterm-256color XDG_RUNTIME_DIR=<set> SourcePackage: gnome-shell-extension-ubuntu-dock UpgradeStatus: Upgraded to noble on 2024-08-30 (3 days ago) mtime.conffile..etc.init.d.apport: 2024-07-22T19:59:07 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gnome-shell-extension-ubuntu-dock/+bug/2078657/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : desktop-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp
