A useful/quick workaround is to rename the sound file like this:
Code: Select all
sudo mv -v /usr/share/sounds/LinuxMint/stereo/system-ready.ogg{,.disabled}
This will rename the login sound file so that it cannot be found (and played). This has a little side-effect: an error sound is played instead. I can personally live better with that one but if that's also irritating to some then replacing the system-ready.ogg file by another would do the trick.
There's probably a better way to handle the problem properly and modify the settings directly but i don't know how to do that.