1. LoadGen
  2. LoadGen Applications
  3. LoadGen Studio

Use of Citrix Receiver 4.7 and up needs a policy change for successful implementation of Validate on image

Updated

This issue is solved!

This issue is solved in release 5.0.0.3853

Problem

Creating a flow in the recorder and not getting an image back in your 'Validate on image' wizard, when trying to select an image (grey screenshot).
 

Scenario

  1. Open the LoadGen Studio.
  2. Select a flow.
  3. Open the Studio Recorder from the ribbon
  4. Connect your Citrix session through the connect button in the middle pane.
  5. Go to the block in the application where you want to add a Validation on the image.
  6. In the wizard step Image configuration and add a new image.
  7. You have a Citrix session in the Studio Recorder but you have the following grey window.

Citrix session in the Studio Recorder window can also give you an indication

In the Studio Recorder when you move your mouse over your connected session you can see it flicker.

Solution 1: Citrix Receiver 4.6

Install Citrix Receiver 4.6: this version of the Citrix Receiver doesn't have this issue with Validate on the image.
 

Solution 2: for Citrix Receiver 4.7 and higher

The issue can be solved by changing your Local Group Policy for Citrix Receiver: Hardware Acceleration for graphics to disabled (see below how to change this policy).
 

Verify with your System Administrator

Check with your System Administrator if you are allowed to make these changes.

 

Copy files to the correct location

  1. Starting with Citrix Receiver for Windows Version 4.6 onward, the installation directory includes CitrixBase.admx and CitrixBase.adml files.
  2. Citrix recommends that you use the CitrixBase.admx and CitrixBase.adml files.
  3. Remove the Receiver.admx and Receiver.adml from:
    • C:\Windows\PolicyDefinitions\en-US
    • C:\Windows\PolicyDefinitions\
  4. Go to the C:\Program Files (x86)\Citrix\ICA Client\Configuration\en-US directory and copy the CitrixBase.adml and Receiver.adml to the C:\Windows\PolicyDefinitions\en-US directory. 
  5. Go to the C:\Program Files (x86)\Citrix\ICA Client\Configuration directory and copy the CitrixBase.admx and Receiver.admx to the C:\Windows\PolicyDefinitions directory.

How to change your Local Group Policy

  1. In the Start Menu type group policy and click on Edit group Policy.
  2. A new Window will open Local Group Policy Editor.
  3. Navigate to Computer Configuration > Administrative Templates > Citrix Components > Citrix Receiver > User experience.
  4. Check the state of Hardware Acceleration for graphics (standard state is 'Not configured').
  5. Change State from 'Not Configured' to 'Disabled'.
  6. Click on OK.
  7. Close Local Group Policy Editor.
  8. Restart your LoadGen Studio.
  9. Select a flow.
  10. Open the Studio Recorder from the ribbon
  11. Connect to your Citrix session through the connect button in the middle pane.
  12. Go to the block in the application where you want to add a Validation on the image.
  13. In the wizard step Image configuration and add a new image.
  14. You should now have a correct screenshot as your session will host.

Solution 3: Change your registry

Solution: you need to add a key in your Registry editor of the LoadGen Agents which are launching the sessions:
  • HKEY_LOCAL_MACHINE\SOFTWARE\Policies\Citrix\ICA Client\Graphics Engine
Key
HKEY_LOCAL_MACHINE\SOFTWARE\Policies\Citrix\ICA Client\Graphics Engine
Value
HWacceleration
Data
0
Type
REG_DWORD (32-bit)
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