2 Monitors with Amd Graphics Card

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http://askubuntu.com – Hi I have 2 amd graphics cards (1 integrated, other one is through the pci) and on windows it works fine, but if I install either one of the amd propitiatory drivers it works on both screens but unity gets messed up, and the system runs very buggy. And if I use the open source driver it doesn't detect my second monitor(the one plugged into the integrated card) I am on ubuntu 12.04 Here is an image of what happens if I use the proprietary drivers. http://i.stack.imgur.com/7uCT0.jpg My intergrated is a 4xxx (don't know that exact one) and my dedicated card is 6870 (HowTos)