I have been trying to solve this problem for a while now. I encrypted my home folder and the swap area and now when I select the first option in the boot loader the OS freezes. I tried reinstalling and encrypting on install and encrypting after install with the same effect.
A weird pattern of squares is shown on the screen and the keyboard is unresponsive(even numlk doesn't make the LED light up). I can boot by going in recovery mode and selecting continue booting normally but the graphics driver doesn't load and I have a very annoying resolutions.
P.S. I am running ubuntu 13.04