NOTE: The Indirect Display Driver is not present on Virtual Delivery Agent 7.15, so customers will need to upgrade to Virtual Delivery Agent 1912 LTSR or the Current Release to benefit from this.
Add the following registry value on the Virtual Delivery Agent:
Key:
HKEY_LOCAL_MACHINESoftwareCitrixGraphicsAdapterMerits
Value:
Name: CitrixIDD
Type: DWORD
Data: 3
This forces the Citrix Graphics stack to use the Citrix Indirect Display Driver instead of the default GPU driver for remote sessions.