[multi monitor support with different resolutions]

i was running into the same problems -- multi monitor setup with different dpi settings. Application windows were not displayed correctly, no keyboard input possible, mouse flickering etc... According to http://support.citrix.com/article/CTX201696 the use of different dpi settings is not supported.

 

But i found this workaround, it´s working in our environment (xenapp 7.11 on w2012r2 / receiver 4.5 on windows 10):

On the receiver client, go to C:\Program Files (x86)\Citrix\ICA Client\wfica32.exe > Properties > Compatibility tab, select "Disable Display Scaling On High DPI Settings"

 

corresponding registry key for this setting:

[HKEY_CURRENT_USER\SOFTWARE\Microsoft\Windows NT\CurrentVersion\AppCompatFlags\Layers]

Name:  C:\Program Files (x86)\Citrix\ICA Client\wfica32.exe

Type: REG_SZ

Data: ~ HIGHDPIAWARE

 

This works pretty well.  The setting for my version of wfica32.exe had slightly different wording, so I selected "Application" under the "Override high DPI scaling behavior.  Scaling performed by:" in Compatibility settings.

 

Thanks Hannes!