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Question Unity 2019.4.5 using Vulkan and Unity XR Management System, Multiview not working on Oculus Quest

Discussion in 'VR' started by malrion, Dec 19, 2020.

  1. malrion

    malrion

    Joined:
    Dec 23, 2016
    Posts:
    10
    We're trying to optimize frametime right now, and attempting to get some big initial gains using Vulkan, il2cpp, and multiview, but it's giving us some trouble.
    We're seeing

    E vulkan : dequeueBuffer returned unrecognized buffer

    over and over again in some builds, and in others it loads, but with a ton of distortion on the right eye.
    One thing we noticed while testing is you can take the hmd off, put it back on and see it on the screen for a brief flash before it disappears again.

    One thing to note, by Unity XR, we mean XR Management System, and we're looking for some advice about what might be going on here! Thanks
     
    malrion, Dec 19, 2020
    #1

  2. daves

    daves

    Unity Technologies

    Joined:
    Oct 18, 2018
    Posts:
    22
    Are you still seeing these issues? If so, please consider opening a bug with a sample. The error you're seeing in the logcat I think is coming from the Vulkan driver and not Unity (Unity's messages are tagged with Unity :)), so this may be something getting out of sync between Unity, the Oculus system, and the Vulkan driver.

    One other thing that may be interested to know is which version of the OS you're running on the headset and if any updates to that addressed your problem.
     
    daves, Mar 9, 2021
    #2