011.fix plymouth

#This is solution how to fix no splash screen in Ubuntu after nvidia proprietary driver installation. It's no matter what Ubuntu version you use, it should work anyway.

#http://askubuntu.com/questions/362722/how-to-fix-splash-screen-in-all-ubuntu-releases

Open your terminal and type

sudo apt-get install v86d

Then

sudo pluma /etc/default/grub

Find this line

#GRUB_GFXMODE=640x480
and change for this one (of course choose your resolution)

GRUB_GFXMODE=1440x900x24          /  1024x768-24
GRUB_GFXPAYLOAD_LINUX=keep

Save file and type in terminal

echo FRAMEBUFFER=y | sudo tee /etc/initramfs-tools/conf.d/splash
sudo update-initramfs -u
sudo update-grub2

It's worked for me in all Ubuntu versions.
Give it a try :)