On Azure I created a new master image for DaaS with Packer. In this (not yet Prod) image, the logoff of users hangs, with a process called nvidia container. Does anybody know something about that?

I've not seen this particular process cause issues before, but for other 3rd party apps on VDAs, i've used the AutoEndTasks reg key detailed here https://serverfault.com/questions/103733/script-to-kill-process-at-logoff-doesnt-execute-until-process-is-dead

At least for this build process, I can replicate that process preventing logoff. For tomorrow I triggered a new build pipeline, to switch from driver 537.13 to 538.15. Worth a try.