[kubuntu] help [instalation] ... blank screen

Image: https://drive.google.com/open?id=0B5-K267BSqd6VlJoZnJ6TmlzTk0 Image: https://drive.google.com/open?id=0B5-K267BSqd6eUxkc2NCWG1ZeG8 Dear. I'm trying to install Ubuntu 15.04 on a Mac Mini. I have another installation of this distribution on a Sony Vaio ruing fine. Follow the guidelines in...