Ways for linux users to overcome the graphics card/"optimus" problem on laptops

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http://forums.fedoraforum.org – Hi, I have recently started looking for a laptop. However, it came to my attention that modern graphics cards have a mechanism allowing the operating system to swap between the built in card and the more powerful one, depending on the needs of the user (NVIDIA calls it optimus). Furthermore, I understand that this mechanism is not supported on linux. Is this true? If so, what are the possible solutions for linux users? I am not sure if I like the idea of switching to a Macbook or switching to Windows. Thanks in advance for any help and suggestions!! (HowTos)