Optimus and drivers.

[blackomegax]

I'd just like to leave this here for anyone in the future looking for info about it.

Nvidias mobile 520m drivers install over, and function perfectly, vs lenovo 4200m optimus drivers. (it detects the 4200m, intel HD3000, and optimus, and installs with no hacks or complaint)

Optimus works. much better, even. most steam apps now launch nvidia instead of intel gpu.

[blackomegax]

Further record, GTA4 on 4200m at 1280x720 and all high settings = 33fps.

wont even run on lenovo's drivers. (locked to intel gpu)