/etc/xdg/autostart/notification-daemon-autostart.desktop is in notification-daemon 3.18.2-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 | [Desktop Entry]
Name=Notification Daemon
Comment=Display notifications
Exec=/usr/lib/notification-daemon/notification-daemon
Terminal=false
Type=Application
OnlyShowIn=GNOME-Flashback;
NoDisplay=true
X-Ubuntu-Gettext-Domain=notification-daemon
|