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The System->Preferences->Sound have no option for that..

(using ubuntu 9.10)

--update for @JonT

Mycustom.config file:










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The what sound? – Ignacio Vazquez-Abrams Jul 27 '10 at 22:04
@Ignacio the sound made when you login – Tom Brito Aug 1 '10 at 0:45
up vote 3 down vote accepted

Go to System->Preferences->Startup Applications. Uncheck GNOME Login Sound. That'll disable the sound you get when you log in.

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Unmark it didn't worked (as I logout and login it get back marked). But remove it worked, thanks! =) – Tom Brito Aug 28 '10 at 17:58

Its in: System->Administration->Login Screen->Check box(Play login sound)

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did you find it? – jer.salamon Jul 29 '10 at 12:23
hi, there's no such checkbox here.. – Tom Brito Aug 1 '10 at 0:44

If you're referring to the sound on the login screen, open up the file /etc/gdm/custom.conf and under the [greeter] section, insert this:


you will probably need to open the above file with sudo, so use sudo gedit /etc/gdm/custom.conf or it will not allow you to save.

You can turn off all Ubuntu event sounds with gconftool:

gksudo -u gdm gconftool-2 –set /desktop/gnome/sound/event_sounds –type bool false
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I believe instead of sudo gedit /etc/gdm/custom.conf it is more Linuxxy to use gksu gedit /etc/gdm/custom.conf (as sudo is for console commands, while gksu/gksudo/kdesu are for X/graphical applications). – chronos Aug 23 '10 at 11:12
@chr You will see the same result as long as you've entered the sudo password within the grace period. – John T Aug 23 '10 at 12:08
@John - I thought it was considered bad to use sudo for graphical applicattions - something to do with creating files that are owned by root and cause problems later??? – Andy Aug 24 '10 at 14:58
@Andy can you point me to the source of where you got this information? Because it's entirely wrong. gksudo will present you with a graphical dialog asking you for your password as opposed to sudo which asks you for it on the command line. It doesn't create any files. – John T Aug 25 '10 at 0:04
@John I agree with you, but also found there are certain cases where this is a problem ( I use sudoedit filename in any case. – invert Aug 25 '10 at 10:44

I think you can use Ubuntu Tweak for that. It's easy to install and you can disable the start-up sound with a GUI.

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Can't remember exactly, but I think it's in "Login Screen" and/or "Appearance" section.

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