Can We Get Acknowledgement of the Pimax Specific RTX 4090 Latency / Lag Issue please?

Hello,

Our development team is in contact with Nvidia, and we have submitted all inspection reports for further investigation.
Hopefully there is a prompt solution to address our user’s latency/lag problem.

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Thanks…although this is a bit different from Raymondo’s response from Pimax Support, and also a bit different to my response from them saying Nvidia are fixing with a driver update. This sounds more like a one way request to Nvidia to investigate, rather than acknowledgement by Nvidia and confirmation their intent is to deliver a fix via a driver update.

Full quote from Raymondo here, apologies

It does indeed not sound too promising. I imagine pimax headset compatibility is not too high on nvidias current list of priorities.

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I feel the comment by @PimaxQuorra conflicts what I received from support. I got the impression that they (Pimax) had identified the issue and that their team was investigating/working on a solution. Which I found plausible given that the engineers at Varjo have already fixed this same (?) issue with a new firmware. This makes me a bit worried tbh

Yes me too. The update contradicts the update I was given as well, saying Nvidia were updating their driver to resolve the issue. Which Nvidia deny. So it seems everyone gets a different response from Pimax.

It is not looking good. Seems like this past month of not being able to use my 8K X & 5K XR will continue for some time.

How do we reconcile the fact that your update contradicts the updates we are receiving from Pimax Support please?

I was told about 3 weeks ago by Pimax Support that Pimax were working on a fix, then 2 weeks ago they said that Nvidia were fixing with a driver update.

Nvidia deny they are working on it to me.

Now your update reads like Pimax have just sent stuff to Nvidia to investigate.

I am now unable to use my 2 Pimax headsets for a month, and right now I feel there is no meaningful update.

This is not confidence inspiring.

It’s already been explained pretty clearly to you that your interaction with Nvidia support is not worth much. You keep constructing narratives and treating them as absolute.

I feel your frustration but try to remain constructive.

All we can do is be patient and keep raising awareness of the problem.

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Wut? I am not constructing any narratives, and I don’t need ‘explaining to’.

I am simply asking which is the correct response given that there is a variety of responses quoted from Pimax.

My take on this? As Pimax and Nvidia do consult each other. It is likely they are working on this issue together.

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I would like to believe so, of course. But as a SW engineer myself, I know all to well the blame game that sometimes happen where neither party acknowledges a given issue. It’s very easy to kick the ball over to the other player. I really hope that is not the case here though.

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The matter continued to interested me and I experimented to get this problem.
After days of tinkering on the computer I still had no success, but today my bad memory still has something to say.

Well, I can actually understand the latencies now. The picture sometimes lags behind.
The reason for my originally smooth experience is my active LINDY 38415 Repeater, which probably smoothes the signal.

Maybe someone can counter-test that, then you would at least have a reasonably cheap workaround to the problem.

@DrWilken - any (affected) person with a 40xx in your Area?

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Isn’t a repeater for extending HDMI signals over long distances? Shouldn’t using the Pimax optical cable be sufficient?

Also, there is no lag in signal, just in tracking head movements. So the image is being displayed up to speed, but just changes in position are like they are not getting back to the GPU quick enough. Not sure if this is via the displayport or HDMI. I assume displayport?

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display port 1.4 - 8k resolution@60Hz. I also don’t understand why there is a discrepancy between motion and image. It feels like some images have been repeatedly transmitted. Possibly because the signal is too fast for the older 8kx Gen1 scaler. I’m only rudimentary in the matter.

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With the 3090ti these cards seems to have weak DP signal. The fix for it with the 8kX was to use an active repeater with a short dp cable.

If what @dstar experiment is true somevof tye 4090s might also have a similar issue that the repeater’s boost might help in fixing.

Anything is possible. During the p1 series pimax had created a workaround firmware for rx400/rx500 And Vega series Amd gpus. In this case it was indeed an issue with Amd’s change in Architecture. It wasn’t until after the KS release that Amd with Pimax was able to address the issue that required changes in both drivers/firmware.

Hopefully it doesn’t take as long to address this issue. As the Revised 8kX only works at present with RTX desktop cards it is indeed a priority for pimax to have working for all users.

Similarly it will also be some kind of priority for Nvidia as they need headsets like pimax’s to help drive sales as Flat games are not likely to need or leverage this amount of gpu power.

Unfortunately time is always a paramount issue. The 3090ti issues with connecting might have been a preview of the 4000 series having some issues on launch that were seeing.

It is always frustrating to upgrade to newly released architecture to have issues that was not a problem in the previous series.

By difference in motion versus image let me give an example to explain:-

Let’s say I am in cockpit in DCS. I click a button on my joystick and the image in the headset to the corresponding change has no lag. The in cockpit switch moves with no lag.

However if I move my head, the movement of the 3D world in the cockpit lags behind. It doesn’t update immediately.

So the image is not lagging, just the tracking of head movement has a lag. Does that give a clearer explanation of what I mean?

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I know what you mean… and as written, I didn’t have it as I always have the lindy in between to add 3 meters to my playing area.

Without the repeater, I then also got the Latency, of which you report.

In my test, I stuck to the Pimax Home environment you mentioned. The planet immediately lagged behind, even jumping from left to right 1-2 times.

But before making a wild purchase, I would also wait for a second test… although I think the repeater is an asset for the 8kx. But for the 12kx it will probably be useless again.

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Pure Neugier :rofl:

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Reasonably cheap? That things expensive! Not in stock anywhere either.

Got one coming next week and I will update on whether it worked or got sent back.

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