Vive Pro problems Normal Vive works fine

[Vaey]

Hi I just got my Vive Pro today.

I was using my normal Vive with extensions. So I ordered an DP extension. The USB 3.0 extension (10m) I used for my normal Vive is working with the normal Vive without any problem. It is this one without the AC extra power plugged in: https://www.amazon.de/gp/product/B01BLPSVFS/ref=oh_aui_detailpage_o02_s00?ie=UTF8&th=1

So now i get frame issues in Raw Data, then the HMD turns Black when it gets back on the controllers are not working anymore. The Steam VR Frame Sync is looking bad (even more when I am in Raw Data) but I am not so skilled in reading it. Also there is no sound on the Vive.

I also have colorful pixels jumping all over in black areas and yeah when it is black. The more white it gets like grey or human skin color the grain of colorful pixels is gone.

The DP Extension (7.5m) is this cable here: https://www.amazon.de/KabelDirekt-DisplayPort-Version-Verriegelung-Ummantelung-Grau-Schwarz/dp/B073RGCYDC/ref=sr_1_9?s=computers&ie=UTF8&qid=1530036245&sr=1-9&keywords=displayport+7.5m+cable

My PC Specs:

CPU i7-4790K

Asus ROG Strix 1080Ti 11gb OC

32GB Ram

Here is a screen of the Frame Sync window from Steam: https://imgur.com/a/lsHTm7I

So now my question is, is it the USB or the DP which is making the problem? Or do I need to get an AC power supply for the USB?

 

UPDATE: restarted Steam VR and unplugged / plugged the Vive Pro into the LinkBox again. Played BeatSaber and Fallout 4 VR without the black screen problem or the controller not working Problem, also had Sound in both games. The colorful pixelframe is still in both games when it gets more dark / black.

Also this is my frame Sync window when playing Fallout 4 VR: https://imgur.com/a/S59iHc9

SteamVR mentioning the game has frame drops: https://imgur.com/a/ZFPF21k

Is it bad / good? :/ Still don't know why Raw Data Crashes the Pro so hard :(

 

UPDATE 2: I now used another 7.5m long Displayport Cable. The colorful Pixels are nearlöy gone now only a few left. Also RawData don't crashes. No frame dropping in Frame Sync and SteamVR tells me good framerate without any problems. But after nearly 10 min of playing RawData my left controller lost the connection and was not sernding data anymore.

[Synthesis]

Hi ,

Thank you for posting your findings. I will take this opportunity to remind you that DisplayPort as a standard is generally not intended for lengthy cables. It is highly likely that any DP cable longer than 2 meters is going to experience an unavoidable degredation of signal. This will compound the longer the cable becomes.

We recommend only using first-party cables for maximum performance with Vive and Vive Pro. That said, if you do manage to find a solution that works for you, please share it here.

Thank you!

-John C

 

[Vaey]

UPDATE 3: After a Vive restart I was able to play the tutorial of RawData without the controller issue, only thing left now is the some grain of pixel on dark / black things but they are nearly gone with this other (and cheaper lol) cable. Maybe I will buy 2 short DP cables with an repeater inbetween or get the high cost fiber dp cable.

 

I know that your hint would be the best and I would totally do this but sadly my flat doen't allow me this I would have to move my pc every time to the big room if I want to play VR :(