[Vive Pro + Wireless jitter stutter every 3 seconds]

3 hours ago, Colt said:

I started having the exact same issue a week ago... Started playing HL: Alyx and noticed it right away on the balcony regardeless of LOW to ULTRA settings. 

Reading this thread - interestingly I too have a i7-4770k mixed with a new RTX 2070. 

Intel i7-4770K, Asus Z87-PLUS, 16GB Ram, SSD, Asus RTX 2070. - HTC VIVE Original + HTC Wireless Adapter.

The clue here to me is: I did not have this issue when using my previous GTX 1070, but I recently upgraded to an RTX 2070 and issues started. Now like everyone's graph, I have studdering every few seconds with spikes (blurring the image for a sec) ONLY with the wireless adapter. With the vive cable no issue. Could be a coincidence with a software/driver release... but if not - i'm currently leaning towards the CPU/Chipset not being fast enough to keep up with the demand of the RTX 2070, creating a bottleneck that affects performance on other PCIe cards.. namely in this case the PCIe WiGig card. I tried moving the cards around to ensure they don't use shared PCIe slots - but same result like in this thread - no changes.

I'll be switching to a Z390 + i5-9600k, will post an update.. in the meantime, I would recommend (if you can), trying to downgrade the RTX to a GTX and see if that solves the studdering issue?! - just an educated guess for a test.

I have a feeling its CPU related and, more specifically, the 'turbo boost' setting that allows the system to overclock your CPU for short bursts of extra processing power. My main PC dose not have a turbo boost and worked perfectly fine with the wireless and my new AMD motherboard/CPU that also dose not use turbo boost has had no issues with this. I would have liked to research it a bit more but my VR motherboard didnt seem to have a way to turn off turbo boost for me to try and run it stability and I didnt have another board to test it on that did.

Thus take this as speculation but, since the VR compositor appears to use all additional available CPU power, it may have been pushing into the turbo boost range. Since TB is only supposed to be used for quick bursts of speed (3 seconds?), it then hitches when the boost timer ends. But I have a Noctua CPU cooler that kept the hardware cold enough that it just immediately makes TB available again perhaps. Setting the VRcompositor to high priority means, when the TB drops, the compositor is less likely to be the one to suffer from the sudden malnourishment of processing power.

If you have a Turbo Boost CPU and can disable it in BIOS, might be worth giving it a try. Not an ideal solution if that happens to be the case but better than flying blind.

[Vive Pro + Wireless jitter stutter every 3 seconds]

Cool. Spent a few hours trying to narrow down the issue. Some hardware and software adjustments and the final thing that worked was giving 'high' CPU priority to the vrcompositor. Kinda happened by accident cause 'above average' didn't do anything. Downloaded a program to give it high priority permanently and seems to be resolving the issue. I'm guessing something in the latest steamvr update buggered CPU allocation.

Hopefully that'll help someone in the future.

[Vive Pro + Wireless jitter stutter every 3 seconds]

On 9/24/2019 at 11:31 AM, BackWithPipes said:

I know that in the time of windows XP, the OS frequently check for new wireless networks. This service could be disabled in XP, but in Win7 or Win10 did not able to turn off this service. This was a 5 second interval at the time of XP.

Also there is a Motherboard thing.
Make sure that you run the latest bios firmware, turn off hardware monitor options (temperatures and fanspeed) in bios and do not run any monitor software. Try to fix you CPU speed.

Because the PCIe bus is very busy with handling the data from your GPU to the WiGiG card, make shure your GPU is in the fist slot en the the WiGiG card.

Also I see that your CPU is already running 100%. So you don't have any overhead on the CPU. Because wireless is GPU and CPU depending make shure to shutdown all application that you dont need.
Als you can try to set the CPU priority higher then standard.  Check this https://www.tenforums.com/tutorials/89548-set-cpu-process-priority-applications-windows-10-a.html

I was not able to get the wireless working with my "old" pc. (for the specs read the first post). I did buy a new PC instead.
@Dracasis Can you post you Motherboard specs here?

Its a brand new PC I bought specifically to do VR and it was working fine for about a month. I was playing Beat Saber, modded SkyrimVR and Arizona Sunshine on it without a hitch and this problem litteraly popped up out of nowhere. Because it was working previously I have a harder time believing its hardware related. Motherboard is an ASRock H370 Pro4 https://www.asrock.com/MB/Intel/H370 Pro4/index.asp

Cards inserted into the MB are Wi-Gig, GPU, Wireless adapter.

Not sure what you mean by 'fix your CPU' speed. The i5-9400F is a  2.9GHz processor currently turboclocked to 3.9GHz.

Unfortunately I cant effect what CPU usage the compositor is chugging: at just the idle screen it chews 60% of the CPU but when in an actual application it usually falls back to 30-50%. I can only assume its using all available CPU for its own processes and just dials back when other applications need it. There's no way the compositor should need to use 60% of a 6 core 3.9GHz processor doing 'nothing'. Setting CPU priority did not change the effect or I dont know what application needs priority.

 

On 9/24/2019 at 8:22 PM, Keyes said:

I recently started to use my wireless vive  again and while I had solved this issue in the past.... it has now returned

First thing, kill steamtours.exe. It is for steam home but absolutely trashes your CPU and subsequently the wireless gets impacted. This had solved me in the past but I don't see it as a process anymore so I'm stumped

Now I'm in the same boat of a stutter every 4 seconds and my CPU usage is minimal (beat saber or lazer vr as examples). Mininimal being 75% or less

Steamtours.exe is the steam home application which quits on its own when a new VR application is run. Force quitting it did not effect the stutter for me either.

[Vive Pro + Wireless jitter stutter every 3 seconds]

Any updates with this?
Am having the exact same issue that only seemed to start occurring with the Steam VR 1.7.15 update.

There is likely some sort of interference or hiccup that I cant figure out as it worked before and dosent now.

This video shows the display when using Steams "Display VR View"

https://www.youtube.com/watch?v=c_HtaS8ghwE

This video shows the view looking through the lens (recorded with a phone). The regular pixelated fuzzing/jumping is what you see and its quite distracting.

https://www.youtube.com/watch?v=53FRWnWYylE

Its very consistent in its timing.

Not sure why but the compositor eats up as much CPU as possible when anything is running, I've seen up to 60% so not sure if that's part of the issue.

Lastly, I noticed the same peeking in my network tab as well, regular and consistent with the fuzzing issue. Disabling the wifi card entirely doesn't change the issue though.

If I exit Steam VR but leave the VIVE Wireless program running, the network peaks go away.

If I have Steam VR running but no program (including no Steam Home so its just the borealis area) the fuzzing goes away.

 

I really have no idea how to fix this and, since there's no way to roll back to a previous version of Steam VR, I have no way of knowing if its something to do with the update.

Sheet Specs:

Win10 Home

Intel Core i5-9400F 2.9GHz (OC to 3.9)

16GB SDRAM DDR4 2666

1TB SATA III 3D NAND (SSD)

NVIDIA GeForce RTX 2070 Super

TP-LINK 802.11ac Wireless Network Adapter

And, of course, the Intel Wireless Gigabit VR Adapter card

 

If ya'lls have any ideas that would be awesome :)

Thanks,