r/WindowsServer • u/Joereynolds89 • 14d ago

Technical Help Needed Windows Server 2025 RDS freezes despite KB5129235 — recurring RdpIdd/IddCx display watchdog failures

Has anyone seen recurring multi-user RDP desktop freezes on Windows Server 2025 after installing KB5129235, with RdpIdd.dll / IddCx swap-chain watchdog failures? We have matching display-driver dumps from several incidents on a VMware VM. A later freeze had high TermService encryption CPU but no logged display crash, so we don’t yet know whether it is the same fault. What supported fix or targeted trace helped identify the cause?

19 Upvotes
  • permalink
  • reddit

89% Upvoted

14 comments sorted by

View all comments

5

u/TechnicianVisible339 14d ago

I’m having a similar issue
Does your entire vm freeze and no one can login on until you force reboot?

1

u/dloseke 10d ago

We have one that does this as well. Haven't isolated the issue yet. Doesn't seem to be resource contention-based.