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Recently I purchased a Lenovo G500 and installed Windows 7 in it. Then I thought of installing Ubuntu 13.10 64-bit OS alongside Windows 7 Ultimate. I created a bootable USB using UNetBootin. It started. Then whatever the option I chose I landed in the black screen. I can't even see the purple screen.
I have 2GB AMD Radeon Graphics Card HD 8500M Series and 1.75GB Intel HD Graphics 4000, besides 4GB RAM. Also can I install Ubuntu in the legacy mode so that I can access both the OSes?
I tried to install Ubuntu 13.10 64-bit in a Virtual Machine and it went smoothly.
What is the problem and how to fix it?