Gtk-CRITICAL **: 16:07:07.797: gtk_widget_get_scale_factor: assertion 'GTK_IS_WIDGET (widget)' failed about xdm HOT 4 OPEN

The issue seems to persist regardless of if the system-tray is enabled or not

from xdm.

I am having the same issue as well it just appeared randomly. It still downloads files it catches from the browser but wont open the main window

from xdm.

+1, Currently my problem. Running it as a superuser seems to work but a dangerous way to do.

from xdm.

I resolve this issue by installing libappindicator
OS : Ubuntu 24.04

sudo apt install libappindicator3-1

and then modify file /usr/share/applications/xdm-app.desktop, add GDK_BACKEND=x11

[Desktop Entry]
Version=1.0
Encoding=UTF-8
Exec=env GTK_USE_PORTAL=1 GDK_BACKEND=x11 /opt/xdman/xdm-app %U
Type=Application
Terminal=false
Name=Xtreme Download Manager
Comment=Xtreme Download Manager
Categories=Network;
Icon=/opt/xdman/xdm-logo.svg
MimeType=application/xdm-app;x-scheme-handler/xdm-app;
StartupNotify=true

after that, kill xdm process using following command :

ps aux | grep xdm
kill {proccess id}

i remove XDM and added back startup application from Gnome Tweak Tools to prevent issue in next reboot

reference : #1056 (comment)

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