Video Judder/Studder Dec 2019 & Q1 2020

[Heliosurge]

Sample Fill out Template

Date: Dec 18 2019
Issue Title: Video Judder (this case special Topic)
Description:
When Playing a variety of Games. Video studders. Cpu is spiking during this event. Pitool 132 doesn’t have this issue.

Aura Sync Software not installed.

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HMD Model: 5k+
First 3 Numbers Serial: 123
Pitool Version: 245 (beta)
HMD Firmware: 255
Tracking: 3dof

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System Info

• Windows Version: W10 Pro (Build #)
• CPU: r7 2700x (No OC)
• RAM: 16g Ddr4 3200 Corsair
• Motherboard: Asus Aura b450-I
• GPU Model: Zotac 1080ti
• GPU Driver: Version x.xx
• SteamVR Version: x.xx (non beta)
• Oculus Version: x.xx (non beta)

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Attachments (Pics/Video etc…)

[kzzyn]

Date: 2019-12-20
Issue Title: Stutter
Description: Stutter in pitools newer than 144 (= 180, 197, 245)

HMD Model: 5K+
First 3 Numbers Serial: 202
Pitool Version: 245 (also 197, 180)
HMD Firmware: 255
Tracking: 2x Lighthouse v1.0

System Info

• Windows Version: 10 Home (1909 build 18363.535)
• CPU: 8700K
• RAM: 16GB 3800MHz
• Motherboard: AsRock extreme 4 z370
• GPU Model: GeForce 2080Ti
• GPU Driver: 441.66 WHQL
• SteamVR Version: not beta (1.9.13)
• Oculus Version: none
  I don’t use any additional software for LED control.
  I have tried changing USB ports.
  I tried changing CPU affinity with Process Lasso.
  I don’t use Smart Smoothing and FFR.

There is visible stutter in image displayed in HMD panels.
The stutter is very annoying, distracting. Every pitool after 144 has the stutter. It is game independent, the stutter is visible even in the basic play space in steamvr, when you start steamvr and there are the circles on the floor and ceiling. It is also visible in pimax home (the starter pimax screen).
There are many posts about this in threads about pitools 180, 197.
It seems that it started after pimax changed something about the gpu utilization bug in pitool.

@Alex.liu @PimaxVR @PimaxUSA @Matthew.Xu @Konger

What is pimax doing to fix the stuttering ?
When is this going to be fixed ?

[Alex.liu]

we will add a slider control the gpu useage to solve this issue.

[kzzyn]

Great, thank you for answering.
When can we expect the solution (new pitool) ?

[JoCool]

Date: 2019-12-20
Issue Title: Stutter
Description: Stutter in pitools newer than 144; in 180, 197. 245 does not work for 5K+ SN 204.

HMD Model: 5K+
First 3 Numbers Serial: 204
Pitool Version: 197
HMD Firmware: 255
Tracking: 2x Lighthouse v1.0

System Info

• Windows Version: Win 10 Pro 1909
• CPU: i7 7700K
• RAM: 16GB 3200MHz
• Motherboard: AsRock Z270 Fatal1ty Gaming K6
• GPU Model: MSI RTX2080ti Trio X Gaming
• GPU Driver: 441.41 release
• SteamVR Version: All channels, Release and Beta
• Oculus Version: none
  I don’t use additional software for LED control.
  I have changed USB ports. All USB ports are 3.0 or 3.1, there are no USB 2.0 ports.
  I optimized CPU affinity with Prio as well, but it did not help.
  I don’t use Smart Smoothing or FFR.

[JohnnyO]

Date: 2019-12-22
Issue Title: Stutter
Description: Stutter in Pitools newer than 144 (= 180, 197, 245)

HMD Model: 5K+
First 3 Numbers Serial: 202
Pitool Version: 245 (also 197, 180)
HMD Firmware: 255
Tracking: 1x Lighthouse v1.0

System Info

• Windows Version: 10 Pro (1809 build 17763.914)
• CPU: Intel i9-9900K (no OC)
• RAM: 32GB Corsair Vengeance LPX 3200MHz (no OC)
• Motherboard: Gigabyte Z390 AORUS MASTER
• GPU Model: Asus RTX 2080Ti Strix (no OC)
• GPU Driver: 441.66 WHQL (always used the latest NVIDIA WHQL drivers)
• SteamVR Version: not beta (1.9.15)
• Oculus Version: none

Did a clean install of Pitool 245 (uninstalled old version, rebooted, deleted Pimax folders under C:\Users\user\AppData\Local, LocalLow, Roaming and C:\ProgramData, and installed new version).

Not using any RGP LED control software. Have tried changing USB ports. Tried changing CPU affinity but this does not help. Not using Smart Smoothing or FFR.

There is visible stutter seen in games, Steam VR test screen, the Pimax home planet scene etc. The stutter is very annoying, distracting. Every pitool after 144 has the stutter.

The stutter is visible in all refresh rate modes eg. 90Hz, 72Hz and 64Hz (currently no 120Hz available for the 5K+ S/N 202* owners ).

[Thall]

Date: 2019-12-25
Issue Title: Stutter
Description: Stutter in Pitools newer than 144 (= 180, 197, 245)

HMD Model: 5K+
First 3 Numbers Serial: 203
Pitool Version: 245 (also 197, 180)
HMD Firmware: 255
Tracking: 2x Lighthouse v1.0

I have two pcs that exhibit this issue so I’ll list both.

System Info 1

• Windows Version: 10 Pro
• CPU: Ryzen 5 1600
• RAM: 16 GB 2666MHz
• Motherboard: Asus prime A320I
• GPU Model: GTX 1080 FE
• GPU Driver: 441.66 WHQL (always used the latest NVIDIA WHQL drivers)
• SteamVR Version: not beta (1.9.15)
• Oculus Version: latest oculus version

System Info 2

• Windows Version: 10 Pro
• CPU: Ryzen 5 3600
• RAM: 16 GB 3000MHz
• Motherboard: MSI B350 gaming plus
• GPU Model: RTX 2070 Super
• GPU Driver: 441.66 WHQL (always used the latest NVIDIA WHQL drivers)
• SteamVR Version: not beta (1.9.15)
• Oculus Version: latest oculus version

The issue occurs on build 1 - which is a brand new pc and nvme ssd. No previous pitool installations, no RGB software (it is a mini itx build after all).

I have had the issue on my primary PC, build 2, ever since i updated beyond .132. The stutter displays itself almost as a tracking anomaly, or a vsync issue.

[Milopapa]

Date: Dec 31 2019
Issue Title: Video Judder
Description:
Random judder in-game, looks like it might be connected to high intensity scenes.
Aura Sync Software not installed.
I followed the purge instructions from SweViver (removing previous version completely), issue is still there

HMD Model: 5k+
First 3 Numbers Serial: 203
Pitool Version: 245 (beta)
HMD Firmware: 255
Tracking: 6dof (Lighthouse)

System Info

• Windows Version : W10 Pro (Build 1809)
• CPU: 8086K - 5.3GHz, no HT
• RAM: 32g DDR4 3200 GSkill TridentZ
• Motherboard: Aorus Pro Z390
• GPU Model: Gainward 2080 Ti
• GPU Driver: Version 418.?
• SteamVR Version: latest non-beta (1.9.16)

[kzzyn]

@Alex.liu

Follow-up to my previous report:

Date: 2020-01-22
Issue Title: Stutter
Description: Stutter in pitools newer than 144 (= 180, 197, 245)
Pitool Version: 254_alpha
HMD Firmware: 262

GPU Driver: 442.01

1. Thank you for the new pitool. I installed both new pitool 254_alpha and firmware 262.
2. Unfortunately for me the stutter is still there. It is a bit better than before, but it still stutters. (but it helped to some other people)
3. I tried Pimax Home and SteamVR starter space = stutter
4. I tried disabling lighthouse tracking, but it did not help = It stutters even with the internal 3DOF. (I thought lighthouse tracking could cause the stutter)
5. After installing pitool 144 the stutter is gone again (keeping the new firmware 262)

[Skyrimer]

Date: Jan 25 2020
Issue Title: Stutter
Description:
Random judder in-game and SteamVR Home, happens in some games/apps but not in others. RacketNX doesn’t have stutters, loading steamvr environment doesn’t have judder, but steamvr home and Monet / Mona Lisa experiences from Viveport had heavy stutters. Looks like a degrading performance problem, at first they are few and far in between, but start to grow until they happen nearly every second.
Aura Sync Software not installed.

HMD Model: 8k
First 3 Numbers Serial: 200
Pitool Version: 254 alpha
HMD Firmware: 255
Tracking: 6dof (Lighthouse)

System Info

• Windows Version : W10 Pro (Build 1809)
• CPU: Ryzen 3600 @3.60ghz
• RAM: Kingston HyperX Predator DDR4 3200 PC4-25600 16GB 2x8GB CL16
• Motherboard: MSI B450 Gaming Plus MAX
• GPU Model: NVIDIA 1080 Ti MSI AERO
• GPU Driver: Version 441.20
• SteamVR Version: latest non-beta (1.9.16)

[Thall]

Date: Jan 27 2020
Issue Title: Stutter
Description:
Following up to say that the alpha version does not eliminate stutter issues for me. Surprisingly, they seemed potentially even worse. I am glad Pimax are formally addressing this but I thought it would be useful to post a follow up. Nearly every 3-5 seconds the entire vision in the hmd jumps around. This problem gets worse with reprojection - in apps that run at capped framerate easily the stuttering is less severe.

HMD Model: 5k+
First 3 Numbers Serial: 203
Pitool Version: 254 alpha
HMD Firmware: 255
Tracking: 6dof (Lighthouse)

System Info

• Windows Version: 10 Pro
• CPU: Ryzen 5 3600
• RAM: 16 GB 3000MHz
• Motherboard: MSI B350 gaming plus
• GPU Model: RTX 2070 Super
• GPU Driver: 441.66 WHQL
• SteamVR Version: not beta (1.9.16)
• Oculus Version: latest oculus version

[General_Jeno]

Date: Jan 28 2020
Issue Title: Stutter
Description:*
Have had stuttering since day one, even got a new headset as RMA. Still the same problem. Tried many different PiTool versions. Tried all the tricks (different usb port, covering the window, even shut down my RGB softwares…)
Does it in every game, I tried Arizona sunshine (see vid below), Eleven table tennis and beat saber, does it simply in steamVR home too.
HMD Model: 5k+
First 3 Numbers Serial: 204
Pitool Version: 254 alpha
HMD Firmware: 255
Tracking: 6dof (Lighthouse)

System Info

• Windows Version: 10 Pro
• CPU: Intel i9 9900K
• RAM: 32GB 3200Mhz
• Motherboard: MSI MEG Z390 ACE
• GPU Model: RTX 2080Ti
• GPU Driver: 441.87
• SteamVR Version: tried both beta and not beta
• Oculus Version: irrelevant, don’t play oculus games atm

Video: https://youtu.be/8RmnPHNopXQ
edit, now an actually working video… could no one have told me it was borked

[ItchyNutz]

Date: Feb 09 2020
Issue Title: Stutter
Description:
Stutter/judder in-game and SteamVR Home. I don’t believe I’ve found a game where it doesn’t happen for me. It does not seem to be dependent on Refresh Rate as it does it no matter what rate I set it to.
It is only during slow horizontal rotation. If I move my head up and down only, then it does not happen. If I move my hide side to side quickly then it does not happen. If I move my head slowly side to side then it happens every 15 seconds or so on average. Pitool 144 is the last version to not have stutter for me. Recent versions of Pitool to seem to be better than the ones that were released right after 144. MSI Afterburner is installed. No RGB controller software is installed.

HMD Model: 5k+
First 3 Numbers Serial: 203
Pitool Version: 254 alpha
HMD Firmware: V2.1.255.255
Tracking: 6dof

Other configuration info:

• Valve Index controllers
• 2 x original light houses (May 2016) approximately 15 feet apart

System Info

• Windows Version : W10 Pro 1909 (18363)
• CPU: Intel Core i7-6700K @ 4.00 GHz
• RAM: 4 x 16gb (unsure of brand)
• Motherboard: Asus Z170 Premium
• GPU Model: NVIDIA RTX 2080 Ti Founders Edition
• GPU Driver: Version 442.19
• SteamVR Version: latest non-beta (1.9.16)

[Alex.liu]

sorry for my late reply , because of the Spring Festival would coming, we had no much time to solve the stutter issue ,so we release an alpha version to lenify the stutter, our enigneer still trying to solve it.

[neal_white_iii]

Good news:

Occasional stutter/judder issue finally solved by Pimax!

Hi guys. Sorry for not being available in the forums lately. Ive been busy in Germany since Tuesday helping and working with a VR arcade company setting up things, and Im still in Germany until Monday night. But I have some good news! During my days here, one of the issues to solve was the occasional/random stutter/judder problem many of you are experiencing ever since PiTool 149 or even earlier. Its an occasional stutter/judder or lost frame every 6-8 seconds or sometimes less often. This iss…

[ItchyNutz]

As far as I can tell, 255 seems to have fixed my stutter issues.