What is starting this disabled service?
 

I have disabled the bluetooth service using:

and using systemd-manager, but it still starts at boot-time. I'm using Ubuntu 18.04 amd64.

If it is being activated by another service, how can I find and stop it?

I would like to stop it from loading in the first place, rather than stop it afterwards, for example by putting a line in /etc/rc.local.

I also want to activate it when needed, and so I would prefer not make bluetooth.service unexectuable or use similar hacks.

Thanks very much.

To prevent it starting at all you could mask it with
However, to find other services that rely on it (and so start it) examine the dependency chain with

Thanks. It turned out to be tlp. I edited the entry for it, according to the post by Hod here, to stop it from starting bluetooth:

https://superuser.com/questions/1447...-at-boot-linux

There you go. ;)

great!
Please mark your thread SOLVED now.