Gpp 3 solutions to updating of firmware
When Citrix Virtual Delivery Agent is installed on a machine, non-administrators can no longer RDP to the machine.
A new local group called Direct Access Users is created on each Virtual Delivery Agent.
Currently the Std-VDA for Xen Desktop and RDS-VDA for Xen App does not support resolutions higher than 4094 in any dimension. At the time of writing, the number of monitors supported is 1, the use of more monitors will cause the graphics mode to change from Framehawk to Thinwire to support multi-monitor.
The maximum resolution supported by Framehawk is currently 2048×2048.
From CTX200257 – Screen Issues Connecting to 4K Resolution Monitors: Symptom: A blank or corrupt screen is displayed when connecting to Windows 7 or 8.1 Standard Xen Desktop Virtual Delivery Agents on a client which has one or more 4K resolution monitors.
To enable Framehawk, see On 2012 R2 RDSH, the only way to configure Remote Desktop Licensing is using group policy (local or domain). The solution was to delete the REG_BINARY in HKEY_LOCAL_MACHINE\SYSTEM\Current Control Set\Control\Terminal Server\RCM\Grace Period only leaving the default.The Default value for Display memory Limit is 65536KB and this is sufficient up to 2x4K monitors (2x32400KB).You can find more information on Graphics modes at Citrix Blogs – Site Wide View of HDX Graphics Modes.For example, if you allocate 20 GB of RAM to your Remote Desktop Session Host, and if the cache disk is only 15 GB, then Windows will have a default pagefile size of 20 GB and Provisioning Services will be unable to move it to the cache disk.This causes Provisioning Services to cache to server instead of caching to your local cache disk (or RAM).