I'm running Windows Server 2012 R2 with VDI using Windows 8.1 Enterprise client VMs.
When a user attempts to reconnect to a previously disconnected session, the RDP connection fails and a large number of the following critical errors are logged on the VM in Microsoft-Windows-RemoteDesktopServices-vGPU-KModeDriver/Admin (Event ID 1):
The RDVGM kernel mode driver failed to start. The VM will not run with RemoteFX. If this issue persists, consider running with a lower number of monitors, resolutions, VMs, or increasing the GPU capacity.
At the same time, the RDS Host server logs a large number of these errors in Microsoft-Windows-Hyper-V-VMMS/Admin (Event ID 32615):
The RemoteFX Manager process stopped working and has been restarted. VM computer: <withheld> VM ID: <withheld>.
Restarting the VM resolves the issue, but that also logs off the session that the user tried to reconnect to.
Things I've tried so far:
- Increase the resolution of the RemoteFX adapter, giving it more VRAM
- Enable Migration Compatibility on the VM Processor
- Tried using both older and the latest graphics drivers for the NVIDIA Grid K1 GPUs.
Any ideas?