Vive cosmos suddently laggy

[Ju]

Hi ! Sorry if it's a noobie's question but i have a very very annoying issue with my Vive cosmos

I bought it a week ago and all went well, most of the time (some classic problems that could be fix by unpluging)

But since 3 day, everything is soooo laggy on it. My Nvidia Drivers are updated, I have totally rebooted my headset, steam Vr etc.... But nothing seems to work.

i have those issues at the same time : lag, tracking trouble, grey screen and purple bar on steam VR

Do anybody have an idea ?

Thank by advance

[Ryuu]

Do you use HTC VIVE Wireless Adapter ?
If you use HTC VIVE Wireless Adapter, Me too.

HTC VIVE Wireless Adapter
It's roughly half fps of HTC VIVE Link BOX (Cable).
HTC VIVE Link BOX (Cable)
It almost keeps around 90 fps.

I suspect Motion Smoothing.

[Ju]

Nope, no adapter...

[Ryuu]

VIVE Console
Settings
Detailed settings
Reset HMD settings

[Ju]

Nope... Tried this, I becamr beta test member, and reinstalled everything. But nothing
I'm starting to lose my hope

[Max]

Hi, I same problem with HTC VIVE Wireless Adapter and HTC VIVE Link BOX (Cable) too.

I found that if in the game I go to desktop (etc I press button start), frames are ok. But I click to game, frames are half.

[Ju]

OK so I have new clues (maybe)

When I turn on the headset, I have 3 USB connecting sounds, then one disconnecting and a connection again.

And I'm Steam home VR or in the viveport, no problem. That's only in game (blade and sorcery or steam lab)

[Max]

I have problem in Steam home VR too.

[Ju]

OK SO !
I've almost fixed it, i'm on the good way.
It appears that you have to connect your cables very very precisely. Your USB 3.0 have to go in the right USB 3.0, not a random one. Same thing for the display port. I have two possible plugs on my graphic card, but only one work almost perfectly
I still have some lag and tracking problem but it's now playable again !

[BloodFX]

I noticed this problem right after the valve index was released, what a coincidence, yea my steamvr home always seems to lag now.

[Ju]

That sucks
But I fixed my problem !
My computer indeed have a "VR Ready" USB plug. It was well hidden ahah. If you have this problem try all your USB ports,it's boring, but it worked for me !