Oculus Rift with a RTX 4090 FE issues

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I recently built a new pc with my 3090 FE & all was working well, I upgrade to a 4090 FE over the weekend & now when I (with the Rift hmd hdmi connected) open the Oculus software after about a second my monitor goes to a black screen flickers then goes into standby, then back on again flickers then back to standby over & over. I can start up the Oculus without the hmd connected & look at the setup screen, plug the hmd hdmi in & see the the light go green (meaning its good) then lose connection to the monitor again.
I do have a picture in the hmd but I obviously need to see the monitor to do setup etc.
I have tried complete uninstall/reinstall the Oculus software, same with the graphics drivers with the clean install option.
Tried with the latest drivers (531.29) & also an older driver (528.49)
I have tried having the monitor (DP) & tv (hdmi) connected at the same time to rule that out & that works fine.
The closest thing I found was someone saying their monitor would flash with a 4090 & it was suggested the 4090 might not be supported by the Rift?
I couldn't find anything else after Googling & I've ran out of things to try.
Could it be simply that the Oculus software/Rift doesn't support the 4090 yet, is it really that old now & is being left behind? Anyone else have any experience with this issue?
I could try putting my 3090 back in to test but I'm 99.9% sure it will be fine cos it was working fine before the swap.
Any help would be much appreciated! :/

System specs are: MSI MAG Z790 Tomahawk DDR5 mobo, i7 13700k, 32gb mhz 6000 DDR5 ram, rtx 4090 FE, Windows 11.

 

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Not sure if it’s any help, but my Rift s works perfectly with my Zotac 4090.
I fitted the 4090 when I got it and it worked fine without updating any software.

Mines the older one, the one before the S model, I don't know if its called anything else other than just a Rift?

 

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iirc it's the rift CV1

Looking at pics on ebay, yes it looks like it is a Rift CV1.
If its a matter of it just being not supported now I will just accept it & move on & buy a newer system, but just would like to know for sure before I go & buy spend money on something else as I was playing Half Life Alex with the 3090 & it looked great.. :/

 

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sorry but i have no idea why it doesn't work with your 4090, i don't see why it wouldn't if it was working with a 3090, i've not heard of older hmd's being incompatible with newer gpu'

Not directly related, but when I went from a CV1 to a Rift S, I had a compatibility issue with a 1080Ti which could never properly be explained.

Tried two different Rift S headsets and had the same issue. Eventually gave in and changed my card to a 2070S, and all worked perfectly again.

As I say, not directly related except that it seems to show there can be incredibly niche compatibility issues with these headsets, so probably you'll find that changing to a different headset will end your woes.

It was so long ago now, I can't even remember the details of what didn't work for me. But pretty sure I posted on here so you could search. I don't think it was quite the same as your issue.

Yes from what I have read so far, although there's not much about it there does seem to be, or can an issue with compatibility with older hmds & newer gpu's (or even the other way round). I guess there's not many people using an old Rift with a 4090 right now, they probably have a newer vr system so info is hard to find.
Just would have liked it confirmed before spending even more hard earned cash..
Even then what do I buy, a G2? Any news on a G3?

 

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Not sure if it’s any help, but my Rift s works perfectly with my Zotac 4090.
I fitted the 4090 when I got it and it worked fine without updating any software.

I just read that the Rift S uses display port not hdmi, so I guess that's one major difference?

 

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are your drivers / software up to date? i seem to remember at launch the 4090 had some problems on the rift forums and oculus said an update would be needed - cant remember if it was an oculus software or an nvidia update.
do you have any extension cables with your rift? if so remove them (i had an extension cable and it worked fine with 1 gpu but not another)

how many sensors do you have with your rift. ? just to get it going try it with just 1, and try different usb 3 ports. i had to get a pcie usb3 card to support my 3 sensor rift CV1... without it i overloaded my usb and it caused all manner of issues.

i have a reverb G2... its been good but i would not contemplate one now..... and sadly i doubt the G3 will ever come , i fear HP are dropping VR which probably means an end to windows mixed reality in general.

if you do buy new exactly what to buy depends on your budget..... with foveated rendering taking off and the £500 cut the meta quest pro is suddently on my radar. still a little too rich for me to be honest but given the quest 3 will likely still be a single screen and may not offer eye tracking, the meta quest pro may be the only "Oculus" headset i would consider (shame as i have a lot of oculus software)

the quest 2 is nice enough but its long in the tooth now........ the pico4 not bad and worth considering but again, if you have an oculus library you may not want to use ReVive 3rd party software to play your games.

but if it were me and wanted a headset right now it would likely be a pico4, quest 2 (begrudgingly) or a quest pro.

Hey thx for the reply, everything is up to date & it was all working with the 3090, the only change was the graphics card. Anyway I managed to fix my problem by going out & buying a used Rift S & its now all working as it should be, I guess there must be some kind of issue with the hdmi being used along with the display port on the 4090 with the Rift CV1?

So why wouldn't you recommend a Reverb G2 Version 2, I've read lots of good things about it, it seems really good for the price? I have almost all my vr games on Steam so Im not interested in a stand alone hmd like the quest, dont want to pay their prices tbh, you can pick vr games up quite cheap for steam.

So is the meta quest pro just a higher quality version of the quest 2?

 

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I am assuming you are in the UK. (in the US the G2 has been $300 and it's a no brainer then). the G2 is a good headset, a very good one if you don't need the motion controllers that much (they do not track as well as oculus and certainly not as well as the original cv1 controllers,). but in England for £600..... for me the small sweetspot and it's field of view is just not good enough. I have no regrets buying mine (cost me around £500 and £30 to improve the face plate to get max fov) but that was a long time ago now and for me now I think if you have to buy new now I would be leaning to the pico 4 or quest pro budget depending (bear in mind I have used neither).
now you have a working rift S I would say enjoy that for a bit and see what happens

I know you say you are not interested in standalone... but the quest and pico both support PCVR too and some games for the quest are cross buy. you get 2 copies PCVR AND standalone. but I can't explain how freeing untethered vr is. (and is one reason I am now tempted to get a quest pro. that thing works flawlessly outside.

quest 2 Vs quest pro.

the pro has 2 screens one for each eye so makes better use of the resolution
the pro has 50% more grunt
the pro has better sound
the pro has larger (10% maybe) FOV
the pro has a better head mount
the pro has eye tracking for foveated rendering (increases resolution for what you look and and decreases what you can't see)
the pro controllers track themselves so no line of site issues with them behind your back or close together
the pro controllers track flawlessly outside.


but the pro costs £1000 (ouch)

Yes in the UK. You're certainly making a good case for the Quest pro, & your spec list for it sounds great. Would I need to buy the cable for pcvr or does it come with it?
Its deffo something I will consider when the time comes but for now I'm still recovering from the price of the 4090 & the unexpected cost of the Rift S on top lol.

 

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The Pro has QLED screens with local dimming that give almost OLED levels of colours (Though not all games support the dimming yet).
The Pro has pancake lenses that are clear from edge to edge - the entire lens is the sweet spot.
The Pro has an open faceplate that doesn't clamp to your face. (Don't knock this unless you try it!)

I will look at it again when I'm ready & able to upgrade my hmd thanks.

 

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Rift CV1 works fine with my 4090. I plug the Rift into the HDMI and my monitor into a DisplayPort with a HDMI converter.

Thats interesting, but like I said my rift would work but the problem was me losing signal to my monitor (DP) when I start the oculus software. I had only found one similar problem to mine here https://communityforums.atmeta.com/t5/Get-Help/v1-Oculus-rift-nvidia-gtx-4090-no-support/td-p/997851
But sorted now as I have a Rift S for the time being.
So why are you not using the display port on your monitor & using the HDMI/DP converter instead?

 

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Any chance you could return the Rift S and buy a Pico 4? It will be so much better!!

I bought it off FB marketplace last night for £120 so not really lol. It will do for the time being & I should be able to get a bit of money back when i sell it maybe?

 

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that is a great price!. i cant see you losing on that tbh.

Ah, that's a shame I guess £120 isn't a bad price, but, it's such a low resolution headset these days. Not sure what it will be worth in a few months when the Quest 3 is released. You might get £60 for it?

What you should do now is download Oculus Tray tools and up the super sampling to 2 or 2.5 even. In steam leave the resolution per eye at 100%. You could also try turning AWS on or off to see which you prefer.

i agree with bigmike, £120 for a rift s is well worth it imo i had 1 in 2020 i liked it, gives u a cheap way of trying vr.

I was a bit desperate to get things working again & don't really have the budget for a big spend atm right after buying the 4090, buying the Rift S seemed a good way to find out whether I had a problem elsewhere or it was simply a compatibility issue, & fortunately its paid off.
I played a bit of Half Life Alex on max settings last night & I thought it looked pretty good, bearing in mind I don't have the experience of a high quality hmd lol.
By the time I have things paid off the Quest 3 will be out so I will have even more options.
I havent got a lot of knowledge about VR so is the Oculus tray tool a good place to start? I've had it for quite a while just not used it much due to other things irl getting in the way. :/

 

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perosnally for now i would just keep things simple, dont install anything you do not have to.... (so install oculus basic stuff and steamVR for steam games which do not natively support the rift)

once you find your feet you can then experiment with apps like tray tool (open composite is another one to get once you know what you are doing.... steamVR is IME pretty poor, so when possible use open composite on steamvr games, it forces games to use openXR which when it is supported runs much better.

Ok thanks for the advice I'll look into it...

 

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With a 4090 you'll be able to supersample/increase the resolution a lot. in the oculus home software, find where the resolution is set (iirc it's somewhere like >devices>settings...) and max it out. also in the oculus debug tool (this is bundled with the oculus home software, the exe file for it is in the oculus directory somewhere, google it) or oculus tray tool (this is a separate download) you'll be able to set the supersampling to atleast 2-2.5 as melmac says. the setting is called the Pixels Per Display or something like that, it's not far off the top.

Ok cool thx..

 

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Simple - I don’t have a DisplayPort on my monitor!

My ‘monitor’ is a big TV, hooked up through an amp - that works really well for 2D stuff and flat gaming. I couldn’t get the Oculus to work when connected by the DisplayPort, so that had to take up the only HDMI I’ve got!

My Rift CV1 has a hdmi connection, are you saying yours has a display port connection?

 

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Get a Quest2 for better PCVR, its much clearer than the CV1 although the FOV still sucks.

I've bought myself a Rift S to last me for the time being, when I can afford to upgrade I'll probably look at the Quest 3 & whatever else is about at the time, more towards the end of the year I reckon.

 

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You're in for a treat when Q3 arrives. Pancake lenses and a higher resolution screen will be a quantum leap up from the Rift S.

I see a lot of people saying how the Rift isn't very good, I've been playing with a psvr & the Rift cv1 for a while & the rift looked kinda ok cos It's what I've been used to, so I know I'm gonna be impressed with whatever hmd i do get next, really looking forward to it.
I do plan on getting a psvr2 to go with my ps5 at some point too, although hearing mixed reviews about it atm.

 

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No, HDMI.

For me, this works fine:
Oculus -> HDMI
TV -> adapter -> DP

This doesn’t (black screen on Oculus) :
Oculus -> adapter -> DP
TV -> HDMI

My monitor is already using the DP so I cant really try that, but I guess I could try it with an adaptor to my tv to see if it works that way. Not sure if there's much point now tho as I bought a Rift S & its working ok.

 

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ok. I have the Oculus rift and have same issue since upgrading to an RTX 4090.
I believe the issue is caused by the hdmi cable conflicting.
The solution i use is to remove the display port cable to run vr then replace once finished.
If you do get flickering then just remove the displayport cable and replace and all ok

Yes you're right that is an option, but I had a message in the hmd to continue setup on the monitor which I couldn't do as there was no picture on screen. I might of been able to bypass that somehow I'm not sure, I do still have the cv1 so I may look at it again, but I have the Rift S & it's ok for the time being. Are you still gonna keep your cv1 or you gonna upgrade to something newer?