[Resolved] Shared IPC Compositor Connect Failed

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Hopefully, someone will be able to help me out here.

I have a Pimax 4k Serial in 100s. I was running 1.1.92 software and hadn’t used it for a while but it worked.

I picked up a Rift with controllers as I wanted to play and compare them and have been using it a couple months. I decided to try out the Pimax again and plugged it in and downloaded the latest drivers 2.0.3.38 (I also tried .42).

Had some trouble getting them installed even with Windows Defender off until I found the link about the K-Lite codex and uninstalled them. Finally got Piplay to install, ran it and updated the firmware. It works in video mode fine. I reinstalled the K-Lite base package.

I cannot, however, get Steam to see Pimax. When running I get an error 306 SteamVR failed to initialize for unknown reasons (Shared IPC Compositor Connect fail).

I’ve installed the latest drivers from Nvidia (did a clean install). Shutdown and rebooted Steam and the computer and reinstalled Piplay a couple of times, including the beta version after killing background processes. I have also left K-Lite uninstalled now in fear that was causing an issue. Nothing is making a difference.

I am running Win 10, 64 bit. i7-6700 16Gig with a Nvidia 980TI driver version 387.92.

I want to be able to swap out headsets so I had not uninstalled Oculus home but I thought this was possible and not supposed to cause problems. I can still use the Rift once I restart the background service so at least that didn’t mess up.

What am I missing here?

@Pimax-Support @Doman.Chen @bacon

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I added some pokes to your post. @crony & @Sjef is likely to have knowledge on how to get multiple headsets playing nice.

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Could we use Teamviewer at present? I’m pleased to assist you remotely.

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4

Maybe these batch files will help you solve the problem.

Using the oculus rift

  1. Run PiService_Stop.bat
  2. Run OVRService_Start.bat
  3. Run SteamVR

Using the pimax 4k

  1. Run OVRService_Stop.bat
  2. Run PiService_Start.bat
  3. Run SteamVR

Download : MEGA

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Thanks all, @Doman.Chen will try to fix it.

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I think you can do this things: First pls change the 387.92 drive into the 385.69 drive, next install the K-Lite base package.If you also failed i think you need help from Pimax-support like me.

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Hi friend, i think i have found out the way to fix this issue. Pls reply me when you are available.

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Thanks again Doman! I appreciate the help!

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You are welcome.It’s my pleasure.

Edit: @Enopho Just now I did copy “pvr file” (C:\Program Files\Pimax\SteamVRSupport\drivers\pvr) to overwrite pvr file (E:\Steam\steamapps\common\SteamVR\drivers). But this issue only exist in old Piplays and New Piplay should not occur it in theory.

When you drag “vrpathreg.exe” (E:\Steam\steamapps\common\SteamVR\bin\win32\vrpathreg.exe) to CMD window and enter, it will show this info:

Usually SteamVR may work normally when it either detects C:\Program Files\Pimax\SteamVRSupport\drivers\pvr or detects “config”. New Piplay that have already wrote in this Config should not occur it other than old Piplay.

So please contact me if other users met the same issue, one of our engineers will join us to double-check.

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10

Hi doman,

For those visitors that have this issue can you explain here what the issue was and how you fixed it please

Thanks

Eno

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11

thanks for the update. so the pvr file you copied in, is that something the community can access without the need to contact your engineers? the fix seems easy otherwise.

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Yes, users with this issue may use this way. But our engineer need to double confirm it, so one more Teamviewer work will help us to sort it out :slight_smile:

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