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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?

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marked as duplicate by chronitis, Warren Hill, Kevin Bowen, belacqua, Seth Oct 25 '13 at 1:45

This question was marked as an exact duplicate of an existing question.

See the answers of this well documented question: My computer boots to a black screen, what options do I have to fix it? – Boris Oct 20 '13 at 7:36

did you try to set the backlight up?

press fn+ keys

On the Lenovo G780 this would be normal behavior.

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