Citrix XenDesktop & XenApp 7.6

Written by Thomas Poppelgaard. Posted in Android, AppDNA, Apple, Chromebook, Citrix, Cloud, Datacenter and Cloud, Desktop Virtualization, GRID, HDX, HDX 3D, HDX 3D Pro, HTML5, iOS, Microsoft, NVIDIA, OS X, Provisioning, Receiver, Server 2012R2, vGPU, VMware, vSphere, Windows 7, Windows 8.1, Windows Server 2008R2, Windows Server 2012, Windows Server 2012R2, XenApp, XenDesktop, XenServer

Citrix have released a new version of Citrix XenDesktop & XenApp 7.6

This is a major release that contains new version of many new software components.

I have in this article included all new product releases to give you an overview what is released related to XenDesktop & XenApp 7.6 solution.

How to get Fraps working with Citrix XenApp 7.5 & Login VSI Graphics Framework

Written by Thomas Poppelgaard. Posted in AMD, Autodesk, Citrix, Cloud, Datacenter and Cloud, Dell, FirePro, GRID, HDX 3D, HDX 3D, HDX 3D Pro, HowTo, HP, IBM, LoginVSI, Microsoft, NVIDIA, Receiver, Server 2012R2, vDGA, vGPU, VMware, vSGA, vSphere, Windows 7, Windows 8, Windows 8.1, Windows Server 2008R2, Windows Server 2012, Windows Server 2012R2, XenApp, XenDesktop, XenServer

This is one of my many series of how to scale test applications using Login VSI Graphics Framework.

If you are interested in trying out the new Graphics Framework from LoginVSI Click here to register for the public beta.

LoginVSI GFX requires you to have Fraps installed on your either VDI or XenApp server.

To get Fraps working correctly, you might run into the issue I have been having. UAC will not allow it to run or if you have UAC disable, you still get a UAC prompt.

This article describes how to get Fraps working in a multisession environment Microsoft Remote Desktop Services 2012R2, Citrix XenApp 7.5 with Login VSI Graphics Framework.

Hotfix Name Changes for Citrix XenDesktop 7.1 and XenApp/XenDesktop 7.5

Written by Thomas Poppelgaard. Posted in Best Practise, Citrix, XenApp, XenDesktop

There is some confussion about the new VDA for XenDesktop and VDA for XenApp, how do you apply which hotfix to which OS you are running, this article gives you an overview of which hotfixes to apply your Citrix XenDesktop/XenApp 7.1 > 7.5 environment.

Hotfix Name Changes

With the reintroduction of XenApp in version 7.5, the same underlying components are used for XenApp and XenDesktop. As a result, the ‘XA’ and ‘XD’ designation will not appear in the hotfix name. Instead, the component name is prepended to the hotfix name.

NVIDIA GRID vGPU 1.1 for Citrix XenServer 6.2SP1

Written by Thomas Poppelgaard. Posted in Citrix

NVIDIA have released a new NVIDIA vGPU 1.1

This release of virtual GPU 1.1 provides support for NVIDIA GRID K1 and K2 GPUs on Citrix XenServer

Included in this release is NVIDIA GRID Virtual GPU Manager version 331.59 for Citrix XenServer 6.2 SP1 or higher, and NVIDIA Windows drivers for vGPU, version 332.83. 


When vGPU release 1.1 is installed on Citrix XenServer, then you will get following new options for your NVIDIA GRID K1 & K2 GPU’s.


Updates in this release vGPU 1.1:

  • Windows 8.1, Windows Server 2012 R2 signed drivers are included
  • K120Q and K220Q vGPUs added
  • nView and NVWMI supported on all vGPUs
  • Miscellaneous bug fixes
  • Additional GRID vGPU profiles: K120Q (available for GRID K1)   K220Q (available for GRID K2) both GPU profiles have 512MB frame buffer.

This release of GRID vGPU 1.1 includes support for:

  • Full DirectX 9/10/11, Direct2D, and DirectX Video Acceleration (DXVA)
  • OpenGL 4.4.
  • NVIDIA GRID SDK (remote graphics acceleration).

The following are not currently supported:

  • CUDA, OpenCL

Prerequisites for vGPU 1.1:

Before proceeding, ensure that you have these prerequisites:

  • NVIDIA GRID K1 or K2 cards.
  • A server platform capable of hosting XenServer and the NVIDIA GRID cards.
  • The NVIDIA GRID vGPU software package for Citrix XenServer, consisting of the GRID Virtual GPU Manager for XenServer, and NVIDIA GRID vGPU drivers for Windows, 32- and 64-bit.
  • Citrix XenServer 6.2 SP1 or later, obtainable from Citrix.
  • An installed Windows VM to be enabled with vGPU.
  • Citrix XenDesktop 7.1 or later, obtainable from Citrix.

Update existing vGPU environment

If an existing GRID Virtual GPU Manager is already installed on the system and you wish to upgrade, follow these steps:

  • Shut down any VMs that are using GRID vGPU.
  • Download NVIDIA GRID vGPU driver from and unpackage the zip folder. Look for the NVIDIA-vgx-xenserver-6.2-331.59.i386.rpm file
    Use WinSCP and connect to your XenServer and transfer the file
  • Install the new package using the –Uv option to the rpm command, to upgrade from the previously installed package: 
    rpm -Uv NVIDIA-vgx-xenserver-6.2-331.59.i386.rpm
    FYI – You can use XenCenter CLI or Putty to execute above command
  • Reboot XenServer host
  • Install XenServer hotfix XS62ESP1004 to the host and reboot
    * Use CTX132791 for further info how to update a XenServer single host or Pool
  • Now you can see the new vGPU profile in XenCenter and XenDesktop Studio.
  • On all your vGPU virtual machines, update the NVIDIA Windows drivers for vGPU, version 332.83
Note: the GRID vGPU Manager and Windows guest VM drivers must be installed together. Older VM drivers will not function correctly with this release of GRID vGPU Manager. Similarly, older GRID vGPU Managers will not function correctly with this release of Windows guest drivers
GRID vGPU on Citrix XenServer does not support operation with physical GPUs BARs mapped above the 4 Gigabyte boundary in the system address space.Ensure that GPUs are mapped below the 4G boundary by disabling your server’s SBIOS option that controls 64-bit memory-mapped I/O support. This option may be labeled “Enable >4G Decode” or “Enable 64-bit MMIO”.

to use GRID K120Q and K220Q vGPU a hotfix XS62ESP1004 from Citrix must be applied to XenServer 6.2SP1


Download Citrix XenServer XS62ESP1004 hotfix here

Howto Install a hotfix to a XenServer single server or pool.

Download NVIDIA vGPU driver for Windows 7 32bit, Windows 8 32bit, Windows 8.1 32bit here

Download NVIDIA vGPU driver for Windows 7 64bit, Windows 8 64bit, Windows 8.1 64bit Windows Server 2008 x64, Windows Server 2008 R2, Windows Server 2012, Windows Server 2012 R2

Recent Comments

Danny de Wolf


Hey Thomas,
Great work, thanks. I’m still running into an issue that I cannot seem to resolve. I was hoping you might have an idea where I should look ?
I’ve got an application server with ES5.4, and a separate SQL server with the Reporting installed. I can get to the Reporting websites /reports and /reportserver, but when configuring Reporting within ES, it keeps saying “The report server credentials used to communicate with Reporting Services are invalid”. I tried pretty much everything I think, and cannot get my head around this.
The account that I’m using at the “Report Server Credentials” page, is a domain account, and has admin rights on the application server (for now, local admin) as well as on the Report and ES databases.
I’m a bit lost what else I can check to make this work… Any advise you can give me would be greatly appreciated :-)



+ Receiver for Windows 14.1.200
+ Profile Management 5.2



Same here. Version 12 and 13 of the receiver still can’t handle SHA2 so for me also a useless product.
Come on Citrix, you have implemented sha2 almost in all receivers so it should be rocket-science for you.



Could you tell me how much will cost this solution ?

only hard+ soft/licenses , without configuration/consultancy .




Changing my playground from XD71 to XD75 and upgrading to the latest VGX is very disappointing.
I can’t see anymore the normal output for nvidia-smi command and i also lack the performance level but also the performance graphs in XenServer.
Tried to rollback and i was unsuccessful.

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