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Panzermk2
New Participant
November 12, 2020
Solved

White horizontal stripe across screen while using link

Headset seems to work fine stand-alone.  I use the headset with IRacing, and often (not always) get a translucent horizontal stripe across the screen after about 15 minutes or so.  It doesn't feel like the headset is overheating.  This doesn't show up on the screen mirror on PC, or if I "mirror" with the debug tool.  Is this likely a failing display or is there somewhere else I should look?

    PokebertAnswer
    Participant
    March 20, 2023

    UPDATE: POSSIBLE WORKAROUND/FIX USING REGISTRY EDITOR

    As I theorized above, this issue does NOT occur for those who use Air Link. Air Link uses HEVC and uses 1 slice for its encoding, whereas wired Link uses H.264 and 5 slices for encoding. Whenever the white bar issue occurs, it is very likely the final 5th slice experiencing an error in the encoding. If you pay close attention when this occurs, you will likely notice it only occurs in the bottom slice of the screen.

    To use this workaround, open Command Prompt and use the following:

    • reg add "HKEY_CURRENT_USER\SOFTWARE\Oculus\RemoteHeadset" /v "numSlices" /t REG_DWORD /d "1" /f

    I will be experimenting with this for the next few weeks to make sure  I do not get the white bar issue!

    Original Post on REVISITED thread:

    I have noticed that this is related to the horizontal encoding slices that are visible only through the Link Cable. A very easy stopgap solution would be to offer a toggle in the OculusDebugTool that allows us to turn OFF these encoding slices. Additionally, the encoding slices do not appear with Air Link and thus the issue has almost never occurred wirelessly according to both personal experience and these threads.

    View in thread

    1125 replies

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    NGuy
    Participant
    May 11, 2021

    What are everyone's specs? Maybe we can find something in-common that's causing the issues.

     

    8700k @ 4.9ghz

    32gb 4000mhz (4 sticks)

    EVGA 3080

    Asus Maximus XI Hero WiFi

     

    For RAM, I'm listing the # of sticks because I noticed that I was getting errors while running a memory test. I have XMP enabled but I have a feeling that the automatic dram voltage settings aren't enough for 4 sticks. I've upped the voltage since first trying to eliminate errors. Once that's done, I'll see if Link is still giving me issues.

    AlexiTQ
    Up and Coming
    May 12, 2021

    8086K @5Ghz

    16GB 3800Mhz RAM

    Asus TUF 3080 OC, undervolted

    Gigabyte Aorus G7 motherboard
    Corsair HX850i PSU (80+ Platinum)

     

    The motherboard has both ASMedia and Intel USB controllers, and I've tried both with the same result. My system is thouroughly stress tested. It's rock solid and weel cooled.

     

    I've seen some speculation that these issues are common with RTX 30-series. I don't think it's been confirmed, however. Might be worth checking.

    ShawnSkay
    Participant
    May 12, 2021

    HP OMEN 30L Desktop GT13-0038nc:

    i7-10700K

    Chipset Z490

    2x16GB HyperX DDR4-3200 XMP

    RTX 3080

     

    Definitely it's not overheating problem, my GPU peaks around 70°C. I can confirm this issue started with Oculus update 24 or 25, so it's very probably software bug. Which hasn't been fixed for a months. 😕 Shame Oculus!

     

    We don't need infinite office, keyboard tracking and other gimmicks, only we want is stable Link without this white stripe!

     

    I've tested AirLink yesterday with Dirt 2.0 and white stripe issue isn't there, which is good, but latency in racing games is noticeable.

      Sp0uny
      Participant
      May 13, 2021

      Last thing tested today, I've connected the Quest 2 & official Oculus link cable to the MSI B550 motherboard rear panel (USB3.2 Gen 2 10GB/S) instead of front panel connected to an USB 3.2 Gen1 5GB/S), same white stipe problem.

      USB speed test in Oculus link gives me 2.5GB/S.

      As usually, I've the problem in Dirt Rally 2.0, but not in ACC.

        gargarbot
        New Participant
        May 13, 2021

        One thought I had trying to isolate this issue is that I am not running the default brightness on my Quest. Is anyone else running a brightness that is not 100% on the Quest?

        NGuy
        Participant
        May 13, 2021

        Using OculusLogGatherer in the Diagnosis folder, I'm noticing a lot of these errors:

        {!ERROR!} [xrstreaming] OculusVadSharedMemoryProducer::write: no available buffer availableSize = 0, maxStallDurationMs= 10

        and

        {!ERROR!} [Kernel:Error] OVR Error:

        {!ERROR!} [xrstreaming] Frame 55098 dropped due to encoder backup

          AlexiTQ
          Up and Coming
          May 14, 2021

          Oculus support wants me to send in my headset for a replacement. They're refusing to answer why they think a replacement will help, considering everything points to a software issue and others have already tried different headsets without luck. Of course, they're also refusing cross shipping so the expected turnaround time is around two weeks.

          Essentially, Oculus support is playing a useless charade for a two week turnaround that will do nothing to fix the problem. On top of that they're refusing to answer why they think it's a good idea, and why they can't even have the decency to offer cross shipping.

           

          I guess if they want to turn customers to enemies, then they're doing everything right.

          Sp0uny
          Participant
          May 14, 2021

          It may be worth a try.

          It seems that not everyone has this problem, on my side I changed almost the entire PC, reinstalled everything, without success.

          I hesitate to ask for the replacement of my headset just to try, the problem is if it is worse afterwards, in the sense that I only have this problem with Dirt Rallye 2, while others less fortunate have this issue in several games that I also play (MFS2020 and ACC).

          Anonymous
          May 14, 2021

          Like I stated earlier I returned my original headset to Amazon and got a second one from Best Buy and the problem happened again immediately. Also 2 official Link Cables and 2 different aftermarket cables. 2 USB C to USB 3 adapters. One USB C powered pcie card and 4 different USB 3.0 ports on my computer. Nothing works. Still using my Rift S with Dirt Rally 2.0.

          AlexiTQ
          Up and Coming
          May 15, 2021

          Yeah, the only thing replacing the headset would be useful for is when demanding a full refund after the replacement shows the same issue. Considering how Oculus has handled this I will make sure to get both headset and cable fully refunded.

          77OSCAR77
          New Participant
          May 16, 2021

          Hello, after updating the bios of the video card and motherboard, the problem seems to be gone. Two days without white stripe. Maybe it's a hardware issue.

          QUEST 1
          Aorus Z490 Master
          Gigabyte RTX3080 Gaming OC

          tanubon
          Inspiring
          May 16, 2021

          This problem happens on Link. It doesn't happen on Air Link. Hmm...

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