Administrator Guide

Enable UDP audio in a Citrix session
Citrix recommends that you use audio over User Datagram Protocol (UDP) in low-bandwidth network connections for better
audio quality. ThinOS does not support UDP audio over Citrix ADC (formerly NetScaler) due to Linux Citrix Workspace app
limitation.
Steps
1. Start the Admin Policy Tool on your ThinOS 9.0-based device or open the ThinOS 9.x Policy settings in Wyse
Management Suite.
If you are using the Admin Policy Tool on ThinOS, you must first select the audio quality as Medium and then enable UPD
audio. UPD audio is automatically disabled when you select the audio quality as High on Admin Policy Tool. However, the
UPD audio is not automatically disabled when you are configuring the setting using Wyse Management Suite. UPD audio may
not work if you set the audio quality as High using Wyse Management Suite.
2. On the Advanced tab, expand Session Settings, and click Citrix Session Settings.
3. In the Basic Settings section, click the Enable UPD Audio toggle key to ON state.
4. From the Audio Quality drop-down list, select Medium.
If you are using the Admin Policy Tool on ThinOS, you must first select the audio quality as Medium and then enable UPD
audio. UPD audio is automatically disabled when you select the audio quality as High on Admin Policy Tool. However, the
UPD audio is not automatically disabled when you are configuring the setting using Wyse Management Suite. UPD audio may
not work if you set the audio quality as High using Wyse Management Suite.
QUMU Video Optimization Pack for Citrix
QUMU's Video Optimization Pack (VOP) for Citrix enables you to stream quality videos to endpoints managed by Citrix Virtual
Apps and Desktops servers by enabling client-side fetching. The QVOP video player runs on the client side and the video stream
uses the client's network to go directly to QUMU's Video Control Center instead of accessing through VDI desktops.
Prerequisites
Ensure that the Windows Media redirection policy is set to Allowed in Citrix Studio. By default, the value is set to Allowed.
About this task
This section describes how to use QUMU Video Optimization Pack for Citrix on your thin client.
Steps
1. Configure the Citrix server in the Broker setup window.
2. Launch an ICA desktop.
3. Download and install the QUMU Media Player on the remote desktop.
NOTE: Contact your QUMU partner to get the QUMU media player.
4. Open the Internet Explorer browser and play a QUMU published video.
For more information about the ICA Multimedia policy settings, see Citrix Product documentation at docs.citrix.com.
Keyboard layout synchronization in VDA
In Citrix Workspace app, the Keyboard Dynamic synchronization mode functions differently on a Linux client from a Windows
client. In general, on a Linux client, the keyboard output follows the client keyboard layout, which is different from the
Windows VDA layout. Windows clients follow Windows VDA layout which is same as the Windows client keyboard layout. If a
Linux client keyboard is synchronized to a Windows VDA, users may observe unpredictable keyboard output. Also, in dynamic
synchronization mode, Citrix Workspace app for Linux does not support VDA users to switch the keyboard layout inside a VDA
session.
Configuring the connection broker—Citrix
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