Found it after modifying the web search a little. I had to start openbox with:
/usr/bin/dbus-launch --exit-with-session openbox --startup $HOME/.config/openbox/autostart The dbus-launch --exit-with-session apparently starts some service that gnome apps now insist on. This apparently works with other window managers: it was an i3 user who found it. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1852016 Title: Applications delayed on launch To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/dbus/+bug/1852016/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs