Nvidia has changed the render pipeline. Framedrops on Vive Pro 2+ RTX 4090.

[Aragorn 76]

Fresh feedback from France today. 😉

@Daddydubz: my video card is horizontal, I do not use any PCIE Riser. 

For Moss, what are your resolution settings ? Are you on "auto" in SteamVR ? The first time I tested Moss (I or II), I had the same ghosting problem but the game was running at 6k x 6k per eye. I set a resolution of 3k x 3k and everything is fine now. 

Concerning BeatSaber : I changed the VP2 USB port on the rear of my PC case ( ). And guess what ? All these micro-stutters disappeared ! I tested the game at 90Hz with a 3k x 3k resolution per eye or 6k x 6k (150%). I also displayed the GPU performance in the headset (with SteamVR). 

However, these micro-stutters are still there (unfortunately) in other games such as Space Pirate Trainer (ghost images) or Arizona Sunshine. I also tested Steam VR Home at 120Hz. Similar problem. Even at 90Hz, I observed a lot of pink or red peaks.

In Space Pirate Trainer, I also observed green (yes, green !) peaks regularly spaced. Very stange ! I must mention that I uninstalled all my RGB stuff (Masterplus, iCue and Mystic light !), deactivated the synchronization with OneDrive and deactivated Creative Cloud from Adobe. 

And, of course, HAGS is off.

For sure, there is a problem with this new family of cards... But not with all games. Can it be related to DX11 or DX12, to the engine used (unity ?) ?

Edited November 26, 2022 by Aragorn 76
Impossible to publish anymore ??

[Jackrip]

On 11/23/2022 at 12:53 PM, Jaw_B said:

So what is the official response here? HTC still investigating? @C.T. 120hz still gives massive reprojection (and very noticable stuttering on objects). We hoping for a fix from nvidia or HTC? Any more information we, as users, can provide?

@JackripHave you turned off HAGS, any RGB (on gpu/motherboard), and monitoring software? In 90hz you shouldnt be getting framedrops anymore?

Yes, I've turned off HAGs and all external applications like icue, msi afterburner, etc. Still happening. Getting a ton of reprojection at 90hz, like 20%

[Aragorn 76]

@C.T. 

Is the Vive console different on Steam ? I can use it as well. Waiting for your test build. 

[Jackrip]

11 hours ago, C.T. said:

Anyone of you running on steam installed? vive console for steamVR
Team is prepairing some potential test build, see if you can give me some feedback on that.

Alright I just opted into the beta branch, I'll see if there's any change

Still having issues on the beta branch

[Jackrip]

10 minutes ago, C.T. said:

@Aragorn 76 if you would like to check out steam installed version, please uninstall the one you have on your PC first. 

I'll send you private release code via DM. 

Any chance you could send me it to? I'll try it out asap

[Jackrip]

1 hour ago, C.T. said:

sure, I also send you DM already.. please check your up right corner thanks 

seems to have done the trick! no longer getting weird frame drops / stuttering at 120hz and 90hz. I'll keep you updated if anything is weird as I try even more games

[Aragorn 76]

@Jackrip

Good news ! I hope this trick will work for me too.

@C.T.

I will test this evening (GMT+1). Crossed fingers.

[TheLK]

@C.T. New private/test version is only for 4090 users ?   I am using the vive app from SteamVR and be a 3090 owner with frame drops and stuttering too....

[TheLK]

28 minutes ago, C.T. said:

The tweek was made for 40-series, but we've also included the suggestion from FPS VR Dev, hopefully to help out W11 users at the same time. 
But sure I can send you one if you want to try it too. 

Thx, I will test this evening (W10 22H2 + 3090FE - VP2)

[Aragorn 76]

I just tried but it does not work for me. Same reprojection (30%) in Space Pirate Training (ghost pictures) and Arizona Sunshine. 

It's worst at 120Hz (Stem VR Home). I do not know how to describe that. The picture  flickers (not sure of the english term) and it is impossible to stay at this frequency (it did not happen before this update).

FPSVR with Space Pirate Training (with regularly spaced orange peaks and FPS capped to 60 !)