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Lag and flicker in VR since 23.12 -> 2.7.9.17830


Buzzer1977

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With todays update i got several multi second lags in VR on multiplayer. The picture just vanishes and i'm in the SteamVR environment with the "DCS wait" logo until a few seconds later when i'm back in the cockpit. It wasn't as bad with 2.7.8.16140, but 2.7.9.17830 is really really bad.

AMD Ryzen 9 5950x, MSI MEG x570 Unify, G.Skill 128GB DDR4-3200, MSI RTX3090 Ventus 3x 24GB, Samsung PCIe 4.0 M.2 1TB 980 Pro, Seagate PCIe 4.0 M.2 2TB FireCuda 520, Quest 3

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I too am getting intense flickering during VR play since the update. The display seems to flick between the DCS display and another display  but the flicker is too quick to make out the image on the other display.

I have noticed it particularly during low level helicopter flight when I get close to a large building or monument. The flickering continues even if the game is paused. The attached track shows it well on my machine. The flickering starts just a few moments after I start to hover near the coloured monument in central Damascus. The track plays OK in non VR playback but the flicker is reproduced on playback in VR.

I have an Oculus Rift S with a 3080 graphics card. Drivers 496.76 (release date Nov 2021). My other VR games are working without any issues so this definitely seems to be a DCS issue. As mainly a helicopter user it is dramatically affecting low level game play.

flicking track.trk


Edited by Resection

Ryzen 5900X, RTX 3080, 32GB Ram, Oculus Rift S, Thrustmaster Warthog Throttle and Stick.

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This youtube video of my VR mirror shows the flickering that I am describing in VR. This is the track I posted above. The flickering starts at about 1 min and 30 seconds into the video. The same track plays back without any problems in non VR.

I have noticed the flicker only occurs on looking forward out of the cockpit. I can stop the flicker by looking outside to the side or down into the cockpit. Very strange!

 


Edited by Resection

Ryzen 5900X, RTX 3080, 32GB Ram, Oculus Rift S, Thrustmaster Warthog Throttle and Stick.

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I have the same problem in VR on a valve index mostly with warbirds looking straight through the prop specially on the ground. Happens with other aircraft but not nearly as bad as it does with warbirds but haven't tried helicopters yet. If I look out the sides of the cockpit or down at the dash the flickering stops. It also only does this on what would be the UI area.

CPU: AMD Ryzen 9 5900x
GPU:
Nvidia 3080
Mem: 64 GB
HDD: 2tb Samsung PCIEx4 980 Pro

Edited by Major_Mayhem
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On 12/23/2021 at 5:17 PM, Buzzer1977 said:

With todays update i got several multi second lags in VR on multiplayer. The picture just vanishes and i'm in the SteamVR environment with the "DCS wait" logo until a few seconds later when i'm back in the cockpit. It wasn't as bad with 2.7.8.16140, but 2.7.9.17830 is really really bad.

Unlikely, but its worth trying if you don't already have the latest firmware installed for your Reverb G2

HP Reverb G2 Audio FW Update
https://support.hp.com/gb-en/drivers/selfservice/hp-reverb-g2-virtual-reality-headset/33835976/model/33835980?sku=1N0T5AA

 

Fix and enhancements:

Resolves a potential issue where displays may flicker or go black when playing certain titles at high volume levels.

 

Regards,

Paul "Dodge / LondonLad"

 

SYSTEM SPECS: AMD Ryzen 7 5800x , 64GB 3600MHz RAM, ASUS ROG Strix X570-F Gaming, NVIDIA RTX 3070 8GB GDDR6, IIYAMA 34" Curved GB3466WQSU Monitor, Thrustmaster Warthog (Joystick (Backup) + Throttles),VPC WarBRD-D Base,VPC MongoosT-50CM2 Grip, VPC ACE Interceptor Pedals, VKB Pedals (v4) (backup)  + TM MFD w/CUBESIM (x2), PointCTRL, HP Reverb G2 VR  Headset & Oculus Quest 2 VR Headset + TrackIR

Group: DCAF

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4 hours ago, Major_Mayhem said:
It also only does this on what would be the UI area.

 

 

You are correct it mainly seems to be when looking at UI area. This video shows it quite well when the game is paused and you can see the UI. The flickering almost always seems to happen when the main focus of view is on the UI area and goes when looking elsewhere. Please note the VR mirror does not give the same FOV as the headset. In game it is even more obvious the flicker occurs on looking forward.

 

Ryzen 5900X, RTX 3080, 32GB Ram, Oculus Rift S, Thrustmaster Warthog Throttle and Stick.

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2 hours ago, Dodge said:

Unlikely, but its worth trying if you don't already have the latest firmware installed for your Reverb G2

Had already installed the firmware back in april when it was released. No new version was released since.

AMD Ryzen 9 5950x, MSI MEG x570 Unify, G.Skill 128GB DDR4-3200, MSI RTX3090 Ventus 3x 24GB, Samsung PCIe 4.0 M.2 1TB 980 Pro, Seagate PCIe 4.0 M.2 2TB FireCuda 520, Quest 3

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8 hours ago, Buzzer1977 said:

Had already installed the firmware back in april when it was released. No new version was released since.

Any other updates since (or shortly before) the update (Windows, GFX, others?), or configuration changes (e.g. within NCP)?


 

Regards,

Paul "Dodge / LondonLad"

 

SYSTEM SPECS: AMD Ryzen 7 5800x , 64GB 3600MHz RAM, ASUS ROG Strix X570-F Gaming, NVIDIA RTX 3070 8GB GDDR6, IIYAMA 34" Curved GB3466WQSU Monitor, Thrustmaster Warthog (Joystick (Backup) + Throttles),VPC WarBRD-D Base,VPC MongoosT-50CM2 Grip, VPC ACE Interceptor Pedals, VKB Pedals (v4) (backup)  + TM MFD w/CUBESIM (x2), PointCTRL, HP Reverb G2 VR  Headset & Oculus Quest 2 VR Headset + TrackIR

Group: DCAF

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1 hour ago, Dodge said:

Any other updates since (or shortly before) the update (Windows, GFX, others?), or configuration changes (e.g. within NCP)?

 

Nothing on the system recently. The only recent change was DCS 2.7.8.16140 to 2.7.9.17830.

AMD Ryzen 9 5950x, MSI MEG x570 Unify, G.Skill 128GB DDR4-3200, MSI RTX3090 Ventus 3x 24GB, Samsung PCIe 4.0 M.2 1TB 980 Pro, Seagate PCIe 4.0 M.2 2TB FireCuda 520, Quest 3

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4 hours ago, Resection said:

This fix posted on the 2D bugs forum seems to have worked for me 😀. Hope it works for others as well.

 

 

How do you check your 6 without mirrors?

AMD Ryzen 9 5950x, MSI MEG x570 Unify, G.Skill 128GB DDR4-3200, MSI RTX3090 Ventus 3x 24GB, Samsung PCIe 4.0 M.2 1TB 980 Pro, Seagate PCIe 4.0 M.2 2TB FireCuda 520, Quest 3

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5 hours ago, Buzzer1977 said:

How do you check your 6 without mirrors?

Mainly fly helicopters so checking six not that important for my gameplay 😉

Obviously though the fix is just a temporary solution until ED make a permanent fix to the bug.

 

 

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Ryzen 5900X, RTX 3080, 32GB Ram, Oculus Rift S, Thrustmaster Warthog Throttle and Stick.

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On 12/31/2021 at 3:28 PM, Decibel dB said:

I tend to use my neck 

Turning the head makes the stutter, flicker and lag even worse.

AMD Ryzen 9 5950x, MSI MEG x570 Unify, G.Skill 128GB DDR4-3200, MSI RTX3090 Ventus 3x 24GB, Samsung PCIe 4.0 M.2 1TB 980 Pro, Seagate PCIe 4.0 M.2 2TB FireCuda 520, Quest 3

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