Connect the monitor to the Nvidia card, instead of the intel card!

axel95462

Prominent
Apr 23, 2017
4
0
510
Hello!
I have a laptop asus k550vx that have igpu intel and dgpu nvidia.
As u know, only intel work cause is directly connected to the monitor.
Can i connect my monitor, by modding the cable, directly to the nvidia, and let my pc use only the nvidia'??! Thannks
 

pohemi

Honorable
Jan 24, 2013
6
0
10,510
In order to use the dGPU, you must go into your power settings in Windows and select "High Power". It has nothing to do with the cable you are using.
 
On laptops with Nvidia Optimus, the Intel integrated GPU always drives the screen. The Nvidia GPU acts as a co-processor. When a game needs a frame rendered, it's rendered on the Nvidia GPU. The video drivers then pass the frame from the Nvidia GPU to the Intel GPU for display.

With a few exceptions, there is no way to hook up the Nvidia GPU directly to the screen. A few laptops are set up with the Intel GPU driving the screen, the Nvidia GPU driving the external video port. And a handful of laptops can in fact have the Nvidia GPU drive the screen (there's a BIOS setting). But these are very rare, and if your laptop isn't one of them there's no way to do it via software. The Nvidia GPU physically needs to be connected to the video output.

That said, Nvidia Optimus works well most of the time. If you open up Nvidia Control Panel (right-click the desktop), you can select which apps use the Nvidia GPU, which use the Intel GPU. You can even set the default to using the Nvidia GPU.

There are a handful of older games where Optimus doesn't work. These games were coded back in the days when computers only ever had one GPU. So the game searches for which GPU is installed, finds the Intel GPU (since it's driving the screen), and stops searching. It never looks for the Nvidia GPU so it never finds it, and as a result can only use the Intel GPU.

If you're using an OS without Intel + Nvidia drivers for Optimus, then you are SOL. Without proper drivers, only the Intel GPU can be used.
 

axel95462

Prominent
Apr 23, 2017
4
0
510


Yeah i know it! THanks for the reply.
Anyway i would like to know if i can do this hardware mod, like connetting my screen cable, directly to the nvidia gpu card.
It will work as my nvidia as default?
 
Jan 18, 2019
1
0
10


I have this problem, as you said most laptops hae the display connected to intel hd graphics card and use optimus to switch between one another.
The problem comes with Nvidia control panel missing all display options, as they are on intel control panel instead, but there are some settings that are not in intel control panel as they are SPECIFIC of Nvidia (g-sync for example, now that there is a workaround compatible with freesync, looks interesting to be able to turn it on, in case it works).
So how do I make the nvidia control panel show the display tab? Thank you