We have some VMs running Windows 8.1 and other VMs now running Windows 10 preview. The environment inside the VMs is definitely GPU accelerated, but the transmission over the network uses the WS 2008 R2 fallback mode, as shown from the event logs on the Remote Desktop Virtualisation Host. H264 encoding is disabled, unless we try to connect with something like FreeRDP, in which case it works fine.
I'm experiencing the same issues as this guy basically: https://social.technet.microsoft.com/Forums/windowsserver/en-US/a9fd61fb-0dbf-41f2-be59-9e5c76e6a3a2/rdp-incorectly-using-2008r2-compatible-mode-vdi-on-2012-r2-81-enterpise?forum=winserverTS
This happens under BOTH 2012 R2 and now upgraded Windows Server 10 box. I have tried machines domained, non-domained, neither works. Firewall off on client PC, and on VM. I've extensively reviewed Group Policies and tried many options in there. Nothing has helped. Anyone got any ideas? Avenues to investigate?
Machine is an i7 with 64GB of RAM and two AMD R7 260 GPUs which are available to Hyper-V.
Information12/03/2015 13:56:10RemoteDesktopServices-RdpCoreTS165RemoteFX module: RemoteFX Encoding for RemoteFX Clients designed for Windows Server 2008 R2 SP1 is enabled and a compatible session was created. Server:
Information12/03/2015 13:56:10RemoteDesktopServices-RdpCoreTS169RemoteFX module: The client operating system type is (1, 3). Server:
Information12/03/2015 13:56:10RemoteDesktopServices-RdpCoreTS162RemoteFX module: The client supports version 0x80105 of the RDP graphics protocol, client mode: 0, H264 enabled: 0. Server: