This applies to a 16.04 Lubuntu system.

There's this related question How to prevent deja-dup-monitor from running, or completely delete it? but that user didn't use deja-dup and just wanted to kill it. Also something about a weird interaction with Google Chrome, also not my issue.

I use deja-dup but only on demand. I don't need its daemon running to kick off automatic backups.

I've killed the daemon and tested backups and restores with it dead and they work fine.

I tried sudo systemctl stop deja-dup-monitor

but I get

Failed to stop deja-dup-monitor.service: Unit deja-dup-monitor.service not loaded.

though it shows up in Task Manager

enter image description here

Also sudo systemctl disable deja-dup-monitor results in

Failed to execute operation: No such file or directory

How can I prevent deja-dup-monitor from starting?


According to dpkg -S deja-dup-monitor (or package search) its XDG desktop-autostart file is located in /etc/xdg/autostart/deja-dup-monitor.desktop .

So you can disable deja-dup-monitor autostart by removing this file:

sudo rm /etc/xdg/autostart/deja-dup-monitor.desktop

As @OrganicMarble commented user-oriented solution is to launch lxsession-edit and uncheck Backup Monitor. This will create XDG-user file ~/.config/autostart/deja-dup-monitor.desktop with contents:

[Desktop Entry]
Name=Backup Monitor
Comment=Schedules backups at regular intervals

The main and significant difference between this file and original /etc/xdg/autostart/deja-dup-monitor.desktop is NotShowIn=LXDE; (it means that deja-dup-monitor will not start on LXDE session).

  • 1
    Thanks, I'm gonna accept this because you pointed me to the answer. While your way works perfectly, now that I know it's just autostarted, in Lubuntu, I can just open the LXsession Configuration app, click on Autostart, and untick "Backup Monitor". That way doesn't require sudo or command lines. Thanks again! – Organic Marble Mar 16 '18 at 21:16
  • Updated my answer (clarified your idea). Thank you! – N0rbert Mar 16 '18 at 21:48

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