Re: [Trisquel-users] Why user and password in live cd?

[antiesnob]

That will only work on the live CD. So, once  you installed Trisquel you'll  
surely need to set the "nomodeset" again but this time it'll be in a  
different way.
In the next link you can find a guide of howto do that and some info.
http://ubuntuforums.org/showthread.php?t=1613132

Good luck!!!