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4.11.2 Vr preview greyed out

Hello, I am new to the unreal engine but not to VR and the oculus series. I am unsuccessfully trying to run a DK2 runtime 1.3 with unreal 4.11.2 on a windows 7 machine. Whatever I do, I get the "VR preview" option greyed out which is insane because I though 4.11 was all about VR dev. Sooooo if anyone has a solution?

Things I've tried Uninst and reinst Oculus runtime 0.7, 0.8, 1.3 Shut down & restart Oculus runtime Update GPU drivers

Product Version: UE 4.11
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asked Apr 26 '16 at 05:46 PM in VR

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avatar image Jc_Smash Apr 28 '16 at 03:28 AM

I am getting the same problem. I can get the VR working in 4.10 but i still cant get it to work in 4.11

I have tried reinstalling the Oculus SDK (0.8).

I had it working in 4.11.1 but for some reason cant get it to work in 4.11.2

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3 answers: sort voted first

You have to start the oculus desktop app first and turn the rift DK2 on. Than start UE4 v4.10.4 as a test. If this works try on 4.11. I got same problems with the 4.11 version. 4.10.4 works fine.

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answered Apr 26 '16 at 09:36 PM

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avatar image Vincent.rieuf Apr 27 '16 at 11:05 AM

Ok tried it, and it worked! Weird but true. Thx man

avatar image daJhoony Apr 27 '16 at 01:49 PM

You are welcome! :)

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I've tried this and it doesn't work for me. It works on 4.10.4 but it's greyed out in 4.11.2

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answered May 04 '16 at 02:34 PM

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I had the same issue. This was a Unicode problem in my case. When UE4 installed on Windows it can work only with English characters. It is ancient bug.

So, what I've done to make it work: 1. Uninstall Engine, SteamVR and Steam or all Oculus software and clean registry 2. In Windows 10 go to Settings -> Time & Language -> Region & Language -> Set English language as default (install it if needed) -> click on "Additional date, time, & region settings" -> Region -> Administrative -> Copy Settings -> choose both check boxes and click Ok 3. In Region -> Administrative -> Change system locale -> choose English(United States) 4. If your current Windows user's name (account name) not in English language (my name was typed with Cirillic Alphabet) you should create new user in English 5. Relogin under new user then install all stuff again

This should work on Windows 7 too. Just keep in mind the main reason: characters Unicode problem

Maybe I made some extra steps to solve it. Maybe you don't need to change language for whole Windows, maybe it is enough to change "Current language for non-Unicode programs" option and set up new User in English, but i never checked it, because I feel comfortable with this settings

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answered Aug 04 '16 at 10:26 PM

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avatar image tomofnz Nov 26 '16 at 07:18 AM

This also was the fix for me in 4,14 win10 (commercial oculus, not dk2) The steps to get there are indeed a little step heavy... but it seemed to work fine. Thanks aitechtor

avatar image skymaphans Feb 15 '17 at 10:22 AM

I wanted to confirm that you do not need to do all these steps, it's enough to just change "Current language for non-Unicode programs" to English (USA). That's all I had to do anyway. I'm running Windows 10 Home in Swedish language and am using UE 4.13.3. Thanks for the help aitector!

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