Share via

Getting Screen Flickering issue on Win 11 24H2 after updating the Omnissa Agent

Sai Teja Ponnuri 0 Reputation points
2025-12-03T10:45:46.16+00:00

Hello Everyone,

One of our customers is using Windows 11 virtual machines as the base image in their Horizon environment. Recently, they upgraded their infrastructure to the latest version. After that, they attempted to upgrade the Omnissa Horizon Agent from 2209 to 2312.

Post-upgrade, they started facing a screen flickering issue where:

Task Manager does not flicker

Desktop/background continues to flicker

Has anyone encountered a similar issue after upgrading to Horizon Agent 2312? If yes, please share the resolution or any suggested troubleshooting steps.

Thanks in advance for your help!

Windows for business | Windows Server | Devices and deployment | Set up upgrades and drivers
0 comments

2 answers

Sort by: Most helpful
Most helpful Newest Oldest
  1. Q&A Assist
    2025-12-03T10:45:54.6566667+00:00
    AI generated content. This question contains an answer created with AI from Q&A Assist. Learn more

    The screen flickering issue you are experiencing after upgrading the Omnissa Horizon Agent to version 2312 on Windows 11 virtual machines may be related to compatibility or configuration settings within the Horizon environment. While the specific issue of screen flickering is not detailed in the provided context, here are some general troubleshooting steps you can consider:

    1. Check for Updates: Ensure that both the Horizon infrastructure and the Omnissa Horizon Agent are fully updated to the latest versions, as updates often include fixes for known issues.
    2. Graphics Driver: Verify that the graphics drivers on the virtual machines are up to date. Outdated drivers can often cause display issues.
    3. Display Settings: Adjust the display settings within the virtual machine. Sometimes, changing the resolution or refresh rate can resolve flickering issues.
    4. Disable Hardware Acceleration: If applicable, try disabling hardware acceleration in applications that are experiencing flickering.
    5. Review Logs: Check the logs for any errors or warnings that might provide more insight into the issue.
    6. Revert to Previous Version: If the issue persists, consider reverting to the previous version of the Omnissa Horizon Agent to see if that resolves the flickering.

    If these steps do not resolve the issue, it may be beneficial to reach out to the support team for Omnissa or consult the community forums for additional insights from users who may have faced similar issues.

    References:

    0 comments
  2. Harry Phan 10,690 Reputation points Independent Advisor
    2025-12-03T11:07:20.53+00:00

    Hello Sai Teja Ponnuri

    The flickering issue after upgrading to Horizon Agent 2312 is often linked to mismatched VMware Tools or display drivers. Please try:

    Updating VMware Tools on the Windows 11 base image.

    Reinstalling Horizon Agent 2312 with the VMware SVGA 3D driver.

    Confirming the VM uses the VMware display adapter, not the Microsoft Basic Display Adapter.

    Testing with hardware acceleration disabled in apps.

    If the issue persists, roll back to Agent 2209 and test 2312 in a clean VM.

    If this guidance helps, kindly hit “Accept Answer” so we know it worked for you 🙂

    Harry.

Your answer

Answers can be marked as 'Accepted' by the question author and 'Recommended' by moderators, which helps users know the answer solved the author's problem.