Some may find the hud-service usefull, but it generates biiiiiiiiig CPU usage on a lot of systems. In this article I will show you how to disable the hud-service on Ubuntu 12.04, Ubuntu 12.10, Linux Mint 13 and Linux Mint 14.
Actually, it is very simple. You just have to remove the execution permission from /usr/lib/indicator-appmenu/hud-service. Like this:
$ sudo chmod -x /usr/lib/indicator-appmenu/hud-service
After reboot, the hud-service will not be started anymore (because it does not have execution rights).
To terminate the procee, you have to kill it:
$ sudo pkill -9 hud-service
$ sudo kill -9 $(pidof hud-service)