Unity app builds but no visuals on device

michela
Explorer

Unity app builds but no visuals on device

Any Unity app installed with Build & Run appears to install but you get either grey screen or screen with loading blue icon (looks like a triangular squid with three tenticles hanging down) - can hear audio on device but no display. This includes the scenes in the samples package such as TestVR.

 

Tried il2cpp and Mono. Gradle and Internal build tools.

 

Any advice?

 


Using: Unity 2108.24f1, Unreal 4.20.1, Wave SDK 2.1.0, NDK R13b, Fusion system 1.531400.2, Visual Studio Community 2017
Plank
Explorer

Re: Unity app builds but no visuals on device

Can confirm. Having the same issue. The grey screen goes away once you take off the headset and wait for it to pause then put it back on, but still annoying. The blue loading icon is persistent and won't go away.

 

Tested with Unity 2018.2.3f1 and Wave SDK 2.1.0

Plank
Explorer

Re: Unity app builds but no visuals on device

I might be wrong but the blue loading icon appears when I already have an old version of Wave SDK (2.0.37) in the project and update to 2.1.0, and grey screen when I start a new project with 2.1.0.

Vive Staff

Re: Unity app builds but no visuals on device

As for Unity version, we suggest you take version before 2018.1.2f1 since we find you might hit black screen when first time launch app on version after 2018.1.2f1 or even 2018.2.x. This symptom can be recovered by suspend/resume once, so you can keep development.

It's under investigation now.

Thanks.

natka
Explorer

Re: Unity app builds but no visuals on device

I am also having this issue. It gets stuck on the squid screen, but loads an empty test screen.

Vive Staff

Re: Unity app builds but no visuals on device

Hi @natka,

 

Which Unity version you use?

Can the symptom be recovered from suspend/resume? 

Thanks.

natka
Explorer

Re: Unity app builds but no visuals on device

Im on 2018.3, will try on an older version of Unity.
When I open the app it seems to freeze the headset and I have to power cycle it.

natka
Explorer

Re: Unity app builds but no visuals on device

I rolled back to 2018.1.1 and was able to load the app. Thanks!

brandonAtVrainium
Contributor

Re: Unity app builds but no visuals on device

Is this still under investigation? I was having black screens and stuck on the vive squid loading screens after updating from Unity 2017 to Unity 2018.


This was persistent on Unity 2018.1.1f1 which seems to be recommended for people seeing this issue, and I needed to make a Unity Package of my old project and import that into a new 2018 project to make it work.


It may be related that I had upgraded from Wave 2.0 to Wave 2.1 on the old project which had this issue, but on the new project I had just imported Wave 2.1 into the empty project before migrating the asset package with all of my scenes in the previous project.

This work around did work, but it was very frustrating and I had no guarentee it would work after spending a lot of time on it.

Vive Staff

Re: Unity app builds but no visuals on device

To update investigation result, this symptom could be observed after Unity 2018.1.2.

Our run time has something conflict with Unity after they induce patch after 2018.1.2.

So you can pick 2018.1.0 or 2018.1.1 if you don't use any new features on latest version.

 

Good news are that we have some solutions and it's under verifying with more Unity versions.

It still requires some time, but at least it's not a big risk for your development.

Thanks.

mender
Settler

Re: Unity app builds but no visuals on device

It's been another 2 months, is there any update on this?

 

@Tony PH Lin

Florian13
Settler

Re: Unity app builds but no visuals on device

Any update on this?

 

This is the end of the year, and Unity 2018.1 has been release a long time ago now! Please fix!

mender
Settler

Re: Unity app builds but no visuals on device

They said elsewhere on Friday that the update is probably coming out early this week, so hopefully any time now.

Moderator

Re: Unity app builds but no visuals on device

@mender

The workaround (certainly not shipping solution) was to take it off and back on again to force pause/resume and another one was this post: http://community.viveport.com/t5/Vive-Wave-SDK/Getting-around-the-black-screen-on-WaveSDK-2-1-0-on-U...

 

I'm sorry to hear those workarounds didn't work out for you, however for we do have the fix now in 2.1.8 which was just posted.

 

@Florian13

Florian13
Settler

Re: Unity app builds but no visuals on device

@Dario,  thanks for your support. 

 

I'll try the new SDK asap.

 

Edit: the new SDK is available here guys

 

PS: Leigh told me by email you might be able to help regarding IAPs. Should I create a new thread on this forum with my questions?