But it might not do anything, I can't be sure because I can't use openXRtoolkit any more (I have to figure out how I messed it up). So I can't read my fps in VR.

 

Anyway, the method is to turn on FG for VR in usercfg.opt (because you can't do it in msfs options in the sim).

=>> Never edit usercfg.opt while msfs in running, it will reset all your options in the sim 😞

1 Open msfg 2024, or I suppose it will work in 2020 too, and go to msfs options and turn on FG in the general tab (not the VR tab). And if you use dlss for the FG then turn FG on choosing NVIDIA DLSS, and be sure to now close msfs. And usercfg.opt will now have changed by the sim to these lines:

FrameGeneration DLSSG

and

FrameGenerationVR OFF

 

2 Edit usercfg.opt with notepad to read this:

FrameGeneration DLSSG

and

FrameGenerationVR DLSSG

 

3 restart msfs 2024 and fly. If you have openxrtoolkit, you may now show more fps. I'm not sure.

I used this method, and it looked like an improvement, but I can't be sure if anything actually changed in performance, but the .opt file keeps on showing DLSSG in the VR FG line of the file.

5 hours ago, Fielder said:

... I can't use openXRtoolkit any more (I have to figure out how I messed it up). So I can't read my fps in VR.

Have you tried uninstalling the toolkit and reinstalling it. I had to do this recently and it worked fine. The registry got messed up and the reinstall fixed it.

Yes, I tried that using paid version iobit uninstaller which removes all traces, including what's in the registry, and reinstalled it. It still doesn't work. As soon as I turn on toolkit the screen shrinks to a tiny size in the VR headset. I think there's a setting wrong in the toolkit.

22 hours ago, Fielder said:

you may now show more fps.

you may also enter in the usercfg.opt "make everything run 10 x faster and give me 20 x more fps"

has the same effect.

"I'm not sure."

I am. 😀

p.s. if you can not use other tools to display fps, you could always turn DEV MODE on and have it display fps. 

I have never been able to see the dev mode fps in VR in 2020 nor in 2024. It shows in 2D of course, but not in VR.

Well, im going to try this soon..ill let you know how it goes

 

22 minutes ago, Fielder said:

I have never been able to see the dev mode fps in VR in 2020 nor in 2024. It shows in 2D of course, but not in VR.

HP Reverb G2:

 

Edited April 19, 20251 yr by turbomax

15 minutes ago, vonduck said:

ill let you know how it goes

 

1 hour ago, turbomax said:

HP Reverb G2:

 

I used to have a Reverb g2, could not see the dev mode menu in VR and still can't see it in my PimaxCrystalLight. It displays fine and I can see it in 2D.

But I managed to fix OXRtoolkit, my going to MENU | RESTORE DEFAULTS. I had to go there blind because I could not see the menu while navigating to that spot in the menu. But finally I got there by trial and error, It took me 2 hours. But now I can use OXRtk again !

your thread title is misleading because it does not work in vr, and hasn't for the last 5 years. rather: 

"how to turn FG ON and why it still doesn't work because of excessive latency, according to NVidia"

I think this may be a classic example of a naming convention lost in translation, FrameGen has never worked in VR so maybe they mean something else.

The bottom line. turning on FG in usercfg.opt does not increase fps. But it does cause instability, i.e. suddenly all controllers will stop working and frame rates will drop drastically. It comes and goes. So I had to turn it back OFF in usercfg.opt.

Off topic, but performance is up in the latest beta. I think it is almost ready to go official. Using mouse and EFB is not a problem in VR in the latest beta.

So this topic is about.....nothing? I read the title and thought somehow FG was now available in VR.

49 minutes ago, KL Oo said:

1) So this topic is about.....nothing?

2) I read the title and thought somehow FG was now available in VR.

1) yes, absolute nonsense

2) not available in VR, and has never been for the past 5 years. If it was available all of a sudden, don't you think Microsoft would have made a huge announcement? Nvidia said FG in VR is not possible due to too much latency.

I don't know why he started this and even talks about improved fps. complete bogus.

Edited April 20, 20251 yr by turbomax