No issue with a 4090 and 8KX for me.
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I have similar problem, ED v 4.0 work better with 3090 Elite Dangerous v 4.0 not working 4090! - #10 by jojon
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I have noticed a small latency since upgrading to the 4090. It’s most noticeable when turning my head sharply. I’ve tried various remedies such as clean install, repeating room setup, and upgrading Pitool, but it hasn’t eliminated it.
I tried taking the 4090 out and putting my 3080 Ti back in, and I found that this new latency was still happening. So I don’t think the issue is the 4090 itself, but rather the 522.25 nVidia driver that I had to upgrade to for 4090 support. Several issues have been reported with this driver, and based on my research online, it seems like this driver introduced significant internal changes.
I have installed newer nVidia drivers as they’ve come out, but the issue hasn’t gone away. I expect that some future nVidia driver update will fix it.
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I have 8K X & 5K XR. Used them both on 2080ti, 3090 and now when I upgraded to 4090 I have a movement lag too. Done everything you can think of, rolled back Nvidia drivers, Pitool & firmware versions etc, HAGS off (and tried on), uninstalled and clean installed everything. Tried all different settings in Pitool and Nvidia (eg smart smoothing, hidden area, parallel projections, low and ultra low latency modes, pre-rendered VR frames etc) and I cannot fix the lag.
I put my 3090 back in and both the 8K X & 5K XR are perfect as before. Put the 4090 in and the lag is back on both headsets.
Pimax suppprt asking me questions like if I am turning my head faster than before and no acknowledgement of the problem at all. And now they seem to be ignoring me.
When I got the hand tracking module they insisted it wasn’t working because of my PC. Then sometime later they released the Pitool version with the ‘fix for leap motion not detected’.
There is clearly an issue with Pitool or firmware and the 4090. I’m sure it will get fixed eventually but in the meantime it would be good if I wasn’t ignored or if at least there was an acknowledgement of the issue.
Right now I have a choice - have no VR, or put my 4090 back in its box (and I really need to sell my 3090 as the 4090 was far from cheap).
Pimax hardware is great and I always support them, and was planning on buying a 12K but the software and customer support don’t leave me feeling great right now, and I bought the 4090 specifically for the 8K X.
Come on Pimax, please acknowledge the issue and identify a fix quickly.
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The lag is present in everything, even Pimax home and Experience. So it is not Steam VR, Open XR, or other applications. It is a core Pitool or firmware issue.
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Okay so is everyone using msi afterburner?
I do not have MSI Afterburner installed
Many don’t use it but it’s installed and it’s service is running. Some I mentioned this to didn’t even know it was running until they double checked. So far everyone who removed (6 in a row) have reported issue resolved or dramatically diminished.
I imagine any windows service that monitors the GPU could also cause the same issue with the 4090 for some reason.
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With respect, diminished is not resolved. On a 3090 there is zero lag.
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I and many others use a 4090 and have zero lag and the issue never occurred at all. This information should help most people who are experiencing this issue.
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I have checked and I have nothing installed or running. I did have iCue but I uninstalled that and no difference. Again this is not an issue when I put my 3090 back in.
I uninstalled MSI Afterburner and… problem gone.
Maybe people shouldn’t be so quick to blame Pimax for stuff like this.
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I am asking for help from Pimax because I have tested and ensured there is nothing else running. I put my 3090 in and have no issue. With 4090 both 8K X and 5K XR have the same lag.
As it happens in Pi home, with nothing else running…and I have tried different Nvidia drivers, and I have nothing else running, checked services and processes - I don’t see what else it can be.
If people with different Virtual Reality brands also had the issue with the 4090 then I would suspect Nv drivers. In any case Pi need work work with Nv to figure this out.
Again when the hand tracking module wouldn’t work I was assured it was my PC, then the fix came out in Pitool.
What else do you suggest I do?
Cool Kevin. Just curious are non msi venderd including Afterburner?
Definitely cool is this fixes it. Thanks for sharing this solution.
At this point on yours it might be some issue with the card hardware itself. You’ve eliminated most potential issues via swapping to your 3090 which you mention works perfectly. I imagine there are some new 4090s out there that don’t check out fully.
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With the 4090 being a new line it is possible that both Nvidia and/or pimax may need to update there drivers.
Where as the 3090 has been out for quite sometime.
Yeah you can install it on any brand and yes it is regularly included or simply installed by the customer after the fact. Sometimes they had an MSI card at some point in the past on the Windows install and it’s there due to that. It’s quite common as a result. Half the people I mentioned it to didn’t even remember it was there.
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I also logged a ticket with Zotac and ram burn-in and stress tests. Everything looks and perform perfectly.
In 2D the 4090 works perfectly.
This is what Pimax said about my hand tracking module too. Then when you released the Pitool ‘fix for leap motion not detected’ it worked perfectly.
So I take it you are still not acknowledging the problem - it’s great some people have no issue, and it’s great removing Afterburner helps with some people. For me, I still have the issue.
So it is my problem and no help will be given?
Yeah it is very common tool folks install. Myself have jist stuck with the Zotac software.