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White horizontal stripe across screen while using link

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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?

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PokebertAnswer

Participant

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.

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AlexiTQ

Up and Coming

Updating the video card BIOS did nothing for me. The updated BIOS versions are primarily for activating resizable BAR.

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bdoyle13

New Participant

Tried a lot of options listed here nothing works. When I contacted OCulus they said it's DCS flight sim that's the problem since it only happens with that game. When I referenced this thread they said nothing.... I will try the suggestions on page 10 tonight and see if that does it.

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raoulmarcelo

New Participant

I have that issue after the second day using the Q2 . And for two weeks of tweaking . This morning I tried lowering the Encode bit rate to 200 on the Oculus debug tool., Encode resolution width to 3664 and Pixel per display to 1.2.

That's all I did. For some reason It worked on my system. I7 9700K, RAM 64 and RX 6900 XT. So far so good today and I've been testing it on MSFS 2020 and DCS and dammed white strip is gone. Hopefully it will work other sytems too.

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JuanDaDestroyer

Participant

This here helped me fix this issue. I've played Tertis effect for 1 hours and I've yet to see the white line return. Before this I would simply get the distortion within 2-5 minutes. I'm rocking a 5600x, 16 GB's of ram, and a 3060ti. further testing is needed to see if the white line comes back however things are looking good.

Edit : While it seemed as thing were alright after playing around the same time as yesterday the distortion start to reappear. as many have stated this doesn't seem to be more than a band aid fix. It DOES seem to keep the issue at bay for at least 30 minutes plus. (which is way better than getting it within the 2-5 minutes.)

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giodude

Participant

Im having this same issue! Has nybody here found a solution? Here's what my display looks like:

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giodude

Participant

i should also mention the artifacting at the bottom of the screen

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AlexiTQ

Up and Coming

I would not consider significantly lowering the bitrate and resolution to be a solution - not when I have the GPU horsepower to comfortably run higher resolution.

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giodude

Participant

It also did not solve mine, looks like a band aid fix. My screen is still half pink.

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AlexiTQ

Up and Coming

Yeah, tried it just to see. It may have taken a little longer for the stripe to appear, I'm not sure, but that's it.

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Anonymous

That's okay you can't see the game you are playing. You'll be able to see notifications if you get a text on your IPhone though! Wow!

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Sp0uny

Participant

Hi

I've tried what did raoulmarcelo, without success for me.

The white stripe was there in less than 2 minutes.

Then I reset the default settings in OculusDebugTool, and I could play something like 30 minutes without issue.

This stripe just appears randomly, I played dirt rally 2.0 for about 200 hours with this problem that I had plenty of time to realize.
Sometimes just after starting the PC it appears every 2 minutes, and sometimes the PC is powered on for hours (and hot) it does not appear for 15 to 30 minutes, it's just random.
The only time I was able to play for fifty hours without a problem was with the oculus link V23, since we switched to V24 it's painful.

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JuanDaDestroyer

Participant

I think your right, the distortions just happen at random. Things aren't looking to good as many solutions were attempted and failed. This now just leaves us at the mercy of oculus to "investigate" and "fix" this issue.

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Anonymous

They never did an investigation for me. They just told me it was Codemasters issue and not their problem.

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Sp0uny

Participant

Just ask them why some people have the issue in Assetto Corsa Competizione, or/and in MFS2020, or/and in iRacing, and so on, if it's a Codamasters issue ?

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NGuy

Participant

Still having the issue on v29.

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