How can the login greeter drums be turned off in Ubuntu 15.10?

Solution 1:

With one command in your terminal, disable with

gsettings set com.canonical.unity-greeter play-ready-sound "false"

and/or enable with

gsettings set com.canonical.unity-greeter play-ready-sound "true"

Or install dconf-editor

sudo apt-get install dconf-editor

and run

dconf-editor

Navigate to

com.canonical.unity-greeter

in the left pane. In the right pane you will see play-ready-sound

and you could do the same in a GUI.