I wanted to know that How is "Switchable graphics" supported on HP laptops via BIOS setting or via Catalyst driver? . I have found that through the Catalyst drivers there is no way to disable the built-in Intel HD graphics permanently and then use ATI Radeon HD graphics card. I think that it should be through the BIOS or driver but then I am not sure about the same as I have heard that it needs custom-built HP driver. Is there anyone who has an idea about this and can clear my doubts as well?