When I turn on the computer, I see the Grub screen with the options to boot to Ubuntu or Windows, but after choosing Ubuntu I see a black rectangle and it stays like that until I see the login screen.
I know it's supposed to show the Ubuntu Mate logo loading the OS. But I have never being able to see that.
I tried deleting the "splash screen" option in Grub...
But it didn't make any difference.
I'm adding a couple of pictures so you can see.
(Yes, that's me in the backgound)