Need disable internel graphic card?

edit

I bought a EXP GDC Dock, insert a gtx670 in it, it works well with external Display and internal Display, X11 and wayland. I am not disable anything in BIOS, not read any manual, just add "negativo17 - Nvidia" repo and install nvidia-driver.

▶ lspci|g VGA
00:02.0 VGA compatible controller: Intel Corporation 3rd Gen Core processor Graphics Controller (rev 09)
02:00.0 VGA compatible controller: NVIDIA Corporation GK104 [GeForce GTX 670] (rev a1)

It seems my internel graphic card still work. need disable it? or how to disable it using command?