[ubuntu] Does AMD radeon computer support Ubuntu?

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http://ubuntuforums.org – Dear All Ubuntu folks, i have this computer would like to install Ubuntu but failed. Nothing appears on screen when i load in the live CD pressing F12 for boot source selection as what i do for installation of other computer. I believe the graphic card the culprit, it comes with dual graphics. but i really got no idea what should i do. Is there anyone can share your experiences on how to get ubuntu install on such computer? (Hardware)