I can't access the login screen in Lubuntu 16.04 LTS (2)

Finally, I fixed this problem using these steps:

1. Boot to GRUB (press SHIFT until the menu is shown).
2. Go to recovery.
3. Resume normal boot.
4. The computer will boot but with bad resolution.

5. Go to terminal and run this command:

   apt-get install xserver-xorg-video-intel
   

6. Reboot, and everything will work just fine.

You can bypass the error by pressing SHIFT button when booting, go to the recovery mode and then resume to normal boot, you will get an xorg error but you can close that window.

But that is no fix because you have to do it every time you boot and you'll face many error (deformed wallpaper, bad resolution, can't change the refresh rate)

I hope someone can provide a permanent working solution, because this release is fast and it will be shame not to use it because of an stupid error.