Latency using any Cloud application with 49" Inch Monitor ( using 5K resolution [5120*1440] )

Latency using any Cloud application with 49" Inch Monitor ( using 5K resolution [5120*1440] )

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Article ID: CTX588030

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Updated On:

Description

After switching from On-Prem (1912 CU6) to Cloud (2203 CU3) - There is sluggish performance using a higher resolution monitors & increased in number of Monitors

- Problem appears on 6 monitors with a resolution of 1920*1200
- Problem appears on 1x monitor with 49" curved monitor with a resolution of 5120*1440

 

Resolution

 

Upon performing the following actions, it showed significant improvement

- Endpoint Registry: HKLM:\SOFTWARE\\[Wow6432Node]\Citrix\ICA Client\Engine\Configuration\Advanced\Modules\GfxRender
- Create a DWORD "UseDirect3D" with value 0: type: DWORD [key: UseDirect3D value: 0 ]

** Endpoint will need to be rebooted for changes to take effect **

 


Problem Cause

Client Side (CWA [D3D9 issue]):
- The FPS client can handled dropped into single digits while the issue time.
- Time consumed in the function FlushLVBTexture