Eu instalei o Tweaks do Ubuntu, mas isso parece não ter a possibilidade de desligar o som do tambor. O que mais eu posso tentar?
I installed ubuntu tweaks but this seems not to have a possibility to switch off the drum sound. What else can I try?
Ubuntu Tweaks should have that possibility
You need to open the Tweak Tab and select the "Login Settings" option. There you can see the Play Login Sound option select with the possibility for on/off. Note: You need to click on the unlock button first to be able to change the Play Login Sound option.
A non-Tweaks option is:
gksudo gedit /usr/share/glib-2.0/schemas/50_unity-greeter.gschema.override
Insert following lines:
[com.canonical.unity-greeter] play-ready-sound = false
Save and run following command:
sudo glib-compile-schemas /usr/share/glib-2.0/schemas/
Courtesy of liberiangeek.net