Webex video crash in citrix VDI

My TroubleShooting

Issue:

Citrix VDI specs: Windows 10, 1607 version.

User’s end point specs: Dell windows 10 1709 version.

Start webex meeting in citrix VDI – works fine. But when webex video is started, it crashes the citrix HDX engine stopped working.

Event viewer entry:

Faulting application name: WFICA32.EXE, version: 14.9.4000.9, time stamp: 0x5b7a823f
Faulting module name: swscale-4.dll, version: 0.0.0.0, time stamp: 0x5807d28d
Exception code: 0xc0000005
Fault offset: 0x00030922
Faulting process id: 0x4330
Faulting application start time: 0x01d44cab61bfe2d1
Faulting application path: C:\PROGRA~2\Citrix\ICACLI~1\WFICA32.EXE
Faulting module path: C:\PROGRA~2\Citrix\ICACLI~1\swscale-4.dll
Report Id: e0c8ecb8-3aab-4b08-9313-12369f896b18
Faulting package full name:
Faulting package-relative application ID:

With web camera not supporting, it is switching to the default resolution of 352 x 288. Web camera fails to enumerate and gets redirected into the session as the Citrix HDX Webcam device.

Resolution:

To resolve the issue, configure the Citrix HDX Webcam on the user client device to switch to a device supported value. A common resolution for integrated cameras is 320 x 240 .

On your endpoint device add following registries

HKCU\software\citrix\HDXRealTime
Name: DefaultWidth
Type: REG_DWORD
Value (decimal): 320

Name: DefaultHeight
Type: REG_DWORD
Value (decimal): 240

Name: EnableDeepcompress_Client
Type: REG_DWORD
Value: 0

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