Bigscreen Beyond 2e Vertical Diplopia

[SteeleTalon]

I upgraded my BSB to the new version recently, and got it set up a few days ago. Upon trying to play IL-2, there is a vertical offset that makes playing the game impossible. I spent nearly an entire day troubleshooting the issue and nothing worked. Internet searches and chatgpt are suggesting it has something to do with IL-2's old VR projection and the way the BSB2 angles the images. Note that the BSB2 works normally outside of IL-2, and the VR view IL-2 puts on the monitor shows no vertical offset, so the problem is between the game and the headset.

It would be great for the devs here to check into this to see if there's anything they can do on their end. I have put a ticket in with the BSB folks as well. Here's a post from the old forum about this issue: https://forum.il2sturmovik.com/topic/92444-issues-with-bigscreen-beyond-2e/

In the meantime, I had to switch back to the original BSB, which still works fine. 

[chiliwili69]

It looks this happen with the eyetraking version (BSB2e) but no with the non-eye-tracking (BSB2).

Look here, https://forum.il2sturmovik.com/topic/90790-bigscreen-beyond-2/page/2/

Neither Goldwrench nor me were having diplopia with the BSB2 non eye tracking.

Just to try, I don´t know if the eye-tracking thing can be deactivated via software. 

[WWCraven]

You can turn it off in the utility by opening the  Eye Tracking Client then uncheck the box where it says Available Models.

[SteeleTalon]

On 2/23/2026 at 2:55 AM, chiliwili69 said:

It looks this happen with the eyetraking version (BSB2e) but no with the non-eye-tracking (BSB2).

Look here, https://forum.il2sturmovik.com/topic/90790-bigscreen-beyond-2/page/2/

Neither Goldwrench nor me were having diplopia with the BSB2 non eye tracking.

Just to try, I don´t know if the eye-tracking thing can be deactivated via software. 

Hm, okay, one more thing to try. I'll see if that changes anything, thanks. 

Edit: no luck. I turned off eye tracking and still had the issue. It's interesting that the 2 without eye tracking works fine. I'll send that info to the BSB ticket.

Edited February 24 by SteeleTalon

[KaDva]

Absolutely the same problem, BSB2e, tried to solve the problem through IL-2 support, but they are not interested in our problems with our new helmets at all) so all hope for BSB developers! I tried many options: different SteamVR settings, OpenXR, OpenComposite, BSB application, complete system reinstallation) but nothing helped. Eye tracking is probably the cause of this problem. However, there is still a positive side to this option, which I was able to configure using DCS (quad views) foveal rendering with 1.5x supersampling, resulting in a stable 75 FPS (in 75hz) and incredibly clear image quality. So eye tracking really gives you a huge boost in performance.

[nicki9knuckles]

I also have the same issue with vertical diplopia in IL-2 using the beyuond 2e. I created a ticket here:
 https://il2-series.com/en/support/tickets/
@SteeleTalon @KaDva Maybe if more people submit tickets they will look into a solution for it i hope