1- Remove login screen question sound

When the login screen appears, Ubuntu plays a “drum drum” ready sound. It is really annoying when I am in a public place like public library… Let’s image that the whole other people will look at your computer  when they here that drum drum sound. It is really awkward huh?

Recently I have a temporary solution to disable that annoying sound, but it should work all Ubuntu version.

Open the  terminal, Applications>Accessories>Teminal and run nautilus by the command:

gksudo nautilus

Then locate to /usr/share/sounds/ubuntu/stereo   Now, just rename the file “dialog-question.ogg” for ex: CUONG-dialog-question.ogg

2- Disable GNOME Login Sound

Go to menu System>Preferences>Startup Applications then just UNCHECK GNOME Login Sound

That’s it!