Cannot run on laptop dedicated graphics (Nvidia=

[Bruffandino]

First of all, hi everyone! Congratulations for the wonderful community

As in the title, there's no way I'm able to make KSP run on the dedicated NVIDIA GT 750M of my laptop. It always run on the integrated intel graphics, as you can see from the log:

Kerbal Space Program - 0.90.0.705 (WindowsPlayer) BETA

OS: Windows 8.1 (6.3.9600) 64bit

CPU: Intel® Core i5-3337U CPU @ 1.80GHz (4)

RAM: 8076

GPU: Intel® HD Graphics 4000 (3072MB)

SM: 30 (Direct3D 9.0c [nvumdshim.dll 9.18.13.4752])

RT Formats: ARGB32, Depth, ARGBHalf, RGB565, Default, DefaultHDR, ARGBFloat, RGFloat, RGHalf, RFloat, RHalf, R8

I've already tried the following:

-Force to use dedicated graphics through the Nvidia control panel

-Append -adapter x to KSP.exe (tried with x=0,1,2)

-Reinstall graphic drivers

-Reboot

-Wait for the full moon

None of the above worked.

Any ideas?

Thanks

[vexx32]

Try setting your power options to High Performance. A lot of laptops are configured to use the integrated graphics most of the time and will hardly ever use the dedicated graphics unless on high performance mode.

[Bruffandino]

I've tried it.. no change Anyway other programs are able to use the dedicated GPU without problems.

[NoMrBond]

It may default to the IGP when there isn't an application profile

Instructions for setting an AP on page three

[Claw]

For my Nvidia / Intel combo, I set KSP to use the Nvidia card through the Nvidia experience control panel. There is a place to add programs under the 3D options. I'm also able to set a lot of the advanced settings in there.

Cheers,

~Claw

[Bruffandino]

Thank you for your suggestions, but with "Force to use dedicated graphics through the Nvidia control panel" I meant that I created an application profile for KSP.exe.

I'm also trying to find a solution on the Unity forums, but no luck so far..

[Bruffandino]

Update: I tried the -force-opengl option and to my surprise the nvidia GPU is being used!! The game runs considerably smoother this way, even if some opengl related glitches are present.

I think I can just stick with that, although I would like to understand why with directx it doesn't work. I even tried to force dx11, but again it used the integrated graphics. Should I try to reinstall directx maybe??

Thanks!

Marco

[vexx32]

I'm not sure, but maybe there's a DirectX setting you can change somewhere? I've no idea, to be honest, but you might want to start poking around in the DxDiag utility.

[sal_vager]

Update: I tried the -force-opengl option and to my surprise the nvidia GPU is being used!!

This suggests your driver is supporting OpenGL but not DirectX, at least not correctly, your Dxdiag output would show exactly what driver you have and if all DirectX components are installed, you could also try "-force-d3d11" as well, if you are using an OEM driver supplied with your laptop it may be missing DirctX9.

The DirectX redistributable can be found here.

Edited February 16, 2015 by sal_vager

[Bruffandino]

I installed directx, but nothing changed. As i said before i tried to force dx11 but the integrated graphics is being used (and the game crashes pretty soon after loading)

I think I will stick with opengl for the moment, is working pretty well for me after all, I even managed to make the AA work. I'll look back into this problem when 1.0 will be released.

Thank you all for the support!