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Dobboman's avatar
Dobboman
Copper Contributor
Aug 03, 2023

Azure Virtual desktop (AVD) Microsoft Teams flickers green after some time when on meeting

We have encountered a persistent problem with AVD Teams where the camera during meetings experiences flickering. This issue has been ongoing for the past three weeks. Some participants observe a green screen, while others notice general flickering. However, the audio remains unaffected. The problem primarily arises when there are four or more people in the meeting or when screen sharing is initiated. Additionally, the issue tends to worsen after approximately 10 minutes or more. It is important to note that this problem is specific to AVD and does not occur on our laptops.

Troubleshooting steps:

  • Disable the "Disable GPU hardware acceleration" option.
  • Ensure that Teams on AVD and the Wertc software are up to date.
  • Teams is Optimize.
  • Verify if the issue occurs only when there are four or more people in the meeting or during screen sharing.
  • Check if the issue is specific to AVD and does not occur on laptops.
  • Remote Desktop client is up to date , tried a roll back same issue.
  • Changed the  settings on the host pool to session behavior & device redirection as per another post here. 

    What's going on ??
  • Dobboman 

    i will share with you 2 screenshot to enhance the session behavior and the device redirection for audio and video. configure them and test your teams meeting again. 

     

     

    Please click Mark as Best Response & Like if my post helped you to solve your issue. This will help others to find the correct solution easily.

     

     

     

     

    • Dobboman's avatar
      Dobboman
      Copper Contributor

      eliekarkafyThank you.
      I saw this on the other post , I have tested this seem to be same issue. 

      • are your users sitting behind any firewall or proxy that is filtering the traffic with AVD ?
  • tmbcun's avatar
    tmbcun
    Copper Contributor

    Anyone able to remediate this issue? unfortunately we are still facing this issue for months now.
    and updates and other provided tweaks doesnt help. 😕

    • m77ewl's avatar
      m77ewl
      Brass Contributor

      Yes the issue is still occurring its been logged for  over 3 months, have had no reposonse from the AVD team at MS .  tmbcun 

      • csongorvarga's avatar
        csongorvarga
        Copper Contributor
        I am not sure if this is related, but I am using a Cloud PC and and the Windows 365 app to access the remote desktop.
        Sympthoms are the same:
        - Shared screen flickers between a green screen and a frozen charged screen
        - Sometimes the video feed of certain user also flickers into green
        - Audio not affected

        I see no hardware acceleration options in Windows 365, so there is no setting I can change.
    • WhiskeyTangoFox's avatar
      WhiskeyTangoFox
      Copper Contributor

      No updates on our end. Microsoft continues to archive our ticket as well which is pleasant of them. We're continuing to try to fix this ourselves and have planned upgrades of FSLogix, Teams (for AVD) and WebRTC in the next few weeks to see if that'll help. 

      • m77ewl's avatar
        m77ewl
        Brass Contributor
        after months of escalations, we now have a reply from MS they have asked us to update WEBRTC to version 1.43.2306.30001, will let you know if it does anything different.
  • ignite24's avatar
    ignite24
    Brass Contributor

    Dobboman 

     

    Anyone have any luck here yet?  We keep getting asked to send logs, but no progress.  It fully seems to be with how the video redirection is handled, but I feel like nothing we have been asked to gather would have the right info.

    • m77ewl's avatar
      m77ewl
      Brass Contributor
      At least you are getting a response (since its been passed to the AVD Team I have no response
  • william320's avatar
    william320
    Copper Contributor
    Hi All,
    Did anyone get a solution for this issue yet ?
    HELP!!
    Many Thanks!
  • william320's avatar
    william320
    Copper Contributor
    Received below from Microsoft :


    Hello William,

    Thanks for your email.

    My escalation team has confirmed that the flickering of screen during screen sharing in Teams Meeting is a known issue that is currently receiving attention.

    Please let the users select the option "Share the entire screen" and see if it will help.

    Please refer to the document below for Teams on VDI and documented known issues.
    Classic Teams for Virtualized Desktop Infrastructure - Microsoft Teams | Microsoft Learn

    Please let us know if you need further clarifications.

    Thank you

    Ibe
    Support Engineer | M
    • WhiskeyTangoFox's avatar
      WhiskeyTangoFox
      Copper Contributor

      william320 - For reference, we're seeing it regardless of whether or not a person shares their screen. It's not every meeting, but if the meeting goes on long enough it'll start to happen. 

      gevans26 - Was it Microsoft who indicated that it was an Intel driver issue? 

      We just updated Teams for AVD, FSLogix and WebRTC on our AVD hosts this week and we're trialing the suggested workstation reg key on a few folks, it'll be a few days before we have results, but crossing fingers. 

      • csongorvarga's avatar
        csongorvarga
        Copper Contributor
        My host laptop has an Nvidia graphics card, therefore I am not using an Intel video driver (I assume). I also noticed that if Teams is no running full screen, the issue starts a bit later. But we always share entire screens, therefore I don't think it is related to what is being shared. And the camera screens start to do flicker, or just a few frames go in an infinite loop.
        The remote desktop is controller by the organization I work for, therefore I did not update anything myself, only the updates pushed down by the IT department.
  • DACUETO's avatar
    DACUETO
    Copper Contributor

    Dobboman I know this is probably not helpful for anyone on here anymore, but ultimately, we ended up having to plug in our webcam directly into a 3.0 port on whatever computer is being used to connect to the virtual machine. In our scenario, we had Dell Desktops we used to connect to Azure VMs; used the USB-C to USB-A (3.0) cable that came with the webcam, and plugged the device directly into any 3.0 port on the computer. Any other setup resulted in the same flashing green screen that was mentioned. 

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