@brammetje I’d recommend you start a new thread as what you are describing sounds unrelated to this thread.
In regards to this thread… I’ve been working with Nvidia and VMware support for many weeks now on this issue. I could replicate the screen freeze on initial Blast Extreme connection and subsequent reconnects with the 7.1 (412.16) and 7.2 (412.31) versions of the vGPU driver and Horizon 7.8 Agent (on both Windows 10 2016 LTSC and 2019 LTSC).
Nvidia has provided a workaround that appears to work.
Create the following registry setting on the master image:
Based on Nvidia’s very detailed response to me (which I appreciate), it sounds like without this registry setting, the vGPU driver on first Horizon session thinks it’s not installed properly and does a reload which causes the screen to freeze… At which time a reboot of Windows is required to finish the driver reload… But in the case of my non-persistent instant clones, the VM is deleted when the user logs out so every connection is a first session. In my case, once I created the above registry setting on my master image, I no longer experienced the screen freeze on initial connection or the black screen on subsequent reconnects.
Hopefully this is helpful to someone else.