I've followed the instructions here:  https://forum.il2sturmovik.com/topic/79847-step-by-step-instructions-for-openxr-and-necksafer-for-wmr-sets/ (except for the part about launching IL2 from Steam)

OpenComposite shows OpenXR selected, but when I run WMR and then IL2 (vr enabled), IL2 simply launches in full screen mode, no vr.

I don't recall having this problem on my old machine (both W10).

I've placed the 64b openvr_api in the /bin/game folder as instructed)

 

With WMR running  and openxr selected in OpenComposite,  IL2 simply opens in a standard screen view, and the headset still shows the WMR cliff house.   I've tried re-doing the entire openxr process, but no change.    I can get VR to work with SteamVR (also selected in OpComp)

Are you using the IL2 Launcher and is "Enable VR" in the launcher "Settings" enabled? I had issues launching using a shortcut to the il2.exe earlier. I now use the launcher. I uncheck the "Enable VR" if I want to launch in pancake mode.

2 hours ago, Jaus said:

I've followed the instructions here:  https://forum.il2sturmovik.com/topic/79847-step-by-step-instructions-for-openxr-and-necksafer-for-wmr-sets/ (except for the part about launching IL2 from Steam)

OpenComposite shows OpenXR selected, but when I run WMR and then IL2 (vr enabled), IL2 simply launches in full screen mode, no vr.

I don't recall having this problem on my old machine (both W10).

I've placed the 64b openvr_api in the /bin/game folder as instructed)

 

With WMR running  and openxr selected in OpenComposite,  IL2 simply opens in a standard screen view, and the headset still shows the WMR cliff house.   I've tried re-doing the entire openxr process, but no change.    I can get VR to work with SteamVR (also selected in OpComp)

I’ve had the same problem since I got a new machine and haven’t been able to get it to work except using Steam VR. Maybe it’s something with WMR so I’m hoping when I eventually get my Pimax this will solve things. 

Yeah, its strange since I had no problem setting it up on my old machine.

I use a shortcut to the launcher, but not directly to the il2 exe.   VR is enabled in the launcher.

Looks like I stumbled upon the problem.   While switching windows in pursuit of a solution I happened to notice a small message in the top banner of the WMR Portal window that said something to the effect of "WMR Portal is not set up to use OpenXR composite"   There was a "Learn More" and "Fix it" buttons next to the message.   "Learn More" didn't get a response, but when I hit "Fix it" the banner disappeared and now WMR handshakes with IL2 to launch IL2 in VR.  Not sure how I missed that setup component.