Please read the following thread about the current changes
I have 2 graphics card on my laptop, one is integrated another is addon. both are ATI. How I can switch between them while running kde/.... in similar as we can do it in win?
I can point you in the right direction but don't think it's real usable or easy to set up how to ASUSM51Ta & Linux: Enjoy Hybrid Graphics with switcheroo further reading [Phoronix] switcheroo On Phoronix [Phoronix] Notebook Hybrid Graphics On Linux Still Sucks Linux Hybrid Graphics
openSUSE Leap 42.1 x64, Plasma 5 & KDE 4.14.x, pretty current proprietary Nvidia drivers (self-compiled)
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