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USB 2. Such devices employ a single configuration space and shared bus connection where a unique interface number ff is used to identify each child device. When a composite USB device is forwarded, the entire device becomes unavailable to the endpoint. This action blocks the local usage of the device for all applications on the endpoint, including the Citrix Workspace client needed for an optimized HDX remote experience.
If the entire device is forwarded using a generic USB channel, the device becomes unavailable for redirection over the optimized HDX audio channel. However, you can achieve best experience when the audio is sent through the optimized HDX audio channel unlike the audio sent using host-side audio drivers through generic USB remoting.
This is because of the noisy nature of the USB audio protocols. You also notice issues when the system keyboard or pointing device are part of a composite device with other integrated features required for the remote session support. When a complete composite device is forwarded, the system keyboard or mouse becomes inoperable at the endpoint, except within the remote desktop session or application.
To resolve these issues, Citrix recommends that you split the composite device and forward only the child interfaces that use a generic USB channel. This setting ensures that the other child devices are available for use by applications on the client endpoint, including, the Citrix Workspace app that provides optimized HDX experiences, while allowing only the required devices to be forwarded and available to the remote session.
Earlier when a device was unplugged and plugged in during a session, the device was redirected automatically. As a result, the device was auto-connected to the VDA. As with regular USB devices, the composite devices for forwarding are selected based on the device rules set in the Citrix Workspace app configuration.
Citrix Workspace app uses these rules to decide which USB devices to allow or prevent from forwarding to the remote session. Each rule consists of an action keyword Allow, Connect, or Deny , a colon : , and zero or more filter parameters that match actual devices at the endpoints USB subsystem. Device rules are clear text with each rule on a single line and an optional comment after a character. Rules are matched top down descending priority order. The first rule that matches the device or child interface is applied.
Subsequent rules that select the same device or interface are ignored. The first six parameters select the USB devices for which the rule must be applied. If any parameter is not specified, the rule matches a device with ANY value for that parameter. You can check the vendor, product, release, and interface IDs of a specific device using a free tool like lsusb:. When present, the last two parameters apply only to USB composite devices.
The split parameter determines if a composite device must be forwarded as split devices or as a single composite device. The intf parameter selects the specific child interfaces of the composite device to which the action must be applied. If omitted, the action applies to all interfaces of the composite device. In a desktop session, navigate to the Desktop Viewer under Devices. The split USB devices appear. In some circumstances, however, you might require users to connect webcams using USB support.
Webcam redirection works for bit and bit applications. For example, Skype, GoToMeeting. Use a bit browser or bit browser to verify webcam redirection online. For example, www. Webcam usage is exclusive to applications. The version of the GStreamer plug-in must be consistent with the version of the GStreamer framework. For example, if you install the Gstreamer 1. Do the following steps to activate and configure webcam redirection feature for bit apps on Citrix Workspace app for Linux.
Set the AllowAudioInput value to True to enable the webcam redirection feature. If the AllowAudioInput value is set to False , do the following to enable the webcam redirection feature:. Set the AllowAudioInput value to True. This encoder is a software-based encoder with acceptable performance. However, this encoder supports only bit apps on a VDA.
The Theora encoder does not support the webcam redirection feature for bit apps on a VDA. Configure the H encoder option to support the webcam redirection feature for bit apps on VDA. H encoder supports the webcam redirection feature for bit apps on the VDA. To enable the H encoder, you must do the following:. After configuring the H encoder, if the webcam redirection feature does not support bit apps on the VDA verify the system dependencies. The webcam redirection feature for the bit app is based on the GStreamer framework.
Previous versions of ICAClient might fail. You can also run the workspaceappcheck. Apart from the GStreamer 1. For more information to install the preceding plugins , see the GStreamer installation guide.
For example, if you install Gstreamer1. Run the following command to check the current version of the GStreamer framework:. For information about troubleshooting, see Webcam in the troubleshooting section. The Citrix Workspace app package includes a helper application, xcapture. Users can use xcapture to:. Previously, when you were using the custom bit cursor, a black box might appear around the cursor.
Starting with version , Citrix Workspace app for Linux supports bit cursor. As a result, the black box around the cursor issue is resolved. Previously, the Citrix Workspace app displayed a dotted cursor that appeared the same in color to the black and white background of a text.
As a result, it was difficult to locate the position of the cursor. Starting with Version , the cursor color inverts based on the background color of a text. As a result, you can easily locate the position of the cursor in the text. ICAClient is already present in the home folder of the current user:. If the. In that case, the default setting for the feature is retained. The cursor does not invert when the value for the Use video codec for compression policy in Citrix Studio is set to Do not use video codec.
Relative Mouse support provides an option to interpret the mouse position in a relative rather than absolute manner. This capability is required for applications that demand relative mouse input rather than absolute. This feature is available only in sessions running on Citrix Virtual Apps and Desktops 7.
This step enables the feature but keeps it inactive until you activate it. For more information on enabling relative mouse features, see Alternative Relative Mouse values section. Find the vid and pid of the Bloomberg keyboard.
For example, in Debian and Ubuntu run the following command:. Add the following entry in the usb. Restart the ctxusbd daemon on the client. Launch a client session.
Make sure that the session has focus while plugging in the Bloomberg v4 keyboard for redirection. However, on thin clients, there were performance issues. This functionality enriches the user experience for BCR.
It helps offload network usage, page processing, and graphics rendering to the endpoint. Starting with Version , CEF-based browser content redirection is fully functional.
The feature is enabled by default. If needed, you can replace the libffmpeg. The issue occurs on Citrix Workspace app version and later. As a workaround, run the following command in the terminal to import the self-signed certificate into nssdb :.
This topic describes the HDX Broadcast auto-client reconnection feature. Citrix recommends that you use this feature with the HDX Broadcast session reliability feature. Users can be disconnected from their sessions because of unreliable networks, highly variable network latency, or range limitations of wireless devices. With the HDX Broadcast auto-client reconnection feature, Citrix Workspace app for Linux can detect unintended disconnections of sessions and reconnect users to the affected sessions automatically.
When this feature is enabled on the server, users do not have to reconnect manually to continue working. Citrix Workspace attempts to reconnect to the session a set number of times until there is a successful reconnection or the user cancels the reconnection attempts.
If user authentication is required, a dialog box requesting credentials appears to a user during automatic reconnection. Automatic reconnection does not occur if users exit applications without logging off. Users can reconnect only to disconnected sessions. By default, Citrix Workspace app for Linux waits 30 seconds before attempting to reconnect to a disconnected session and attempts to reconnect to that session three times. To protect against network dropouts, ensure that Session Reliability is enabled on the server, client, and configured on the AccessGateway.
For example, wireless users enter in a tunnel might lose their connection when they enter the tunnel and regain it when they emerge on the other side. When the connection is re-established, these interactions are replayed into the application. You can now see screen changes when the session reliability begins. With this enhancement, the session window is grayed out and a countdown timer displays the time until the next reconnection attempt occurs. You can alter the grayscale brightness used for an inactive session using the Reconnection UI transparency level policy.
By default, this value is set to When a session successfully reconnects, the countdown notification message disappears. You can interact with the desktop as usual. When auto-client reconnection and session reliability are configured, session reliability takes precedence if there is a connection problem. Session reliability attempts to re-establish a connection to the existing session.
It might take up to 25 seconds to detect a connection problem. And then takes a configurable period the default is seconds to attempt the reconnection. If session reliability fails to reconnect, then auto-client reconnect attempts to reconnect. If HDX Broadcast session reliability is enabled, the default port used for session communication switches from to HDX Broadcast session reliability requires that another feature, the Common Gateway Protocol, is enabled using policy settings on the server.
The session reliability timeout policy setting has a default of seconds, or three minutes. If needed, you can extend the time session reliability keeps a session open.
It does not prompt you for reauthentication. As you extend the amount of time a session is kept open, you might get distracted and walk away from your device. This situation potentially leaves the session accessible to unauthorized users.
Incoming session reliability connections use port , unless you change the port number defined in the session reliability port number policy setting. For information on configuring session reliability policies, see Session reliability policy settings. Session reliability is enabled by default at the server.
To disable this feature, configure the policy managed by the server. These technologies improve the user experience when connecting to hosted applications and desktops, as follows:. HDX MediaStream Windows Media Redirection overcomes the need for the high bandwidths required to provide multimedia capture and playback on virtual Windows desktops accessed from Linux user devices. Windows Media Redirection provides a mechanism for playing the media run-time files on the user device rather than on the server.
As a result, reduces the bandwidth requirements for playing multimedia files. Windows Media Redirection improves the performance of Windows Media Player and compatible players running on virtual Windows desktops.
A wide range of file formats are supported, including:. Citrix Workspace app includes a text-based translation table, MediaStreamingConfig. You can update the translation table to do the following:. The server is responsible for directing the user device to the media, and for sending control commands including Play, Pause, Stop, Volume, Seek.
But the server does not handle any media data. This feature requires advanced multimedia GStreamer libraries on the device. Install GStreamer 0. Typically, you install GStreamer before you install Citrix Workspace app to allow the installation process to configure Citrix Workspace app to use it. Most Linux distributions include GStreamer.
To enable client-side fetching, install the required GStreamer protocol source plugins for the file types that users play on the device. You can verify that a plug-in is installed and operational using the gst-launch utility.
If gst-launch can play the URL, the required plug-in is operational. For example, run gst-launch In releases earlier to , GStreamer 0. Starting with the release, you can configure GStreamer 1. Install the GStreamer 1. In this case, download the source code and build all binaries locally:. To configure GStreamer 1. HDX MediaStream Flash Redirection enables Adobe Flash content to play locally on user devices, providing users with high definition audio and video playback, without increasing bandwidth requirements.
Verify that your user device meets the feature requirements. For more information, see System requirements. Add the following parameters to the [WFClient] section of wfclient.
By default, this value is set to Never. Also, users are presented with a dialog box asking them if they want to optimize Flash content when connecting to webpages containing that content. Enables or disables server-side content fetching for Citrix Workspace app.
By default this value is set to Disabled. Enables or disables HTTP cookie redirection. By default, this value is set to Disabled. Enables or disables client-side caching for web content fetched by Citrix Workspace app. By default, this value is set to Enabled. Defines the size of the client-side cache, in MB. This value can be any size between 25 MB and MB.
When the size limit is reached, existing content in the cache is deleted to allow storage of new content. Defines the type of caching used by Citrix Workspace app for content fetched using server-side content fetching. By default, this value is set to Persistent. Flash redirection is disabled by default. HDX RealTime provides a webcam video compression option to improve bandwidth efficiency during video conferencing.
To do this connection, you must do the following:. For more information, see default settings. Open the usb. Secure access to SaaS applications provides a unified user experience that delivers published SaaS applications to the users. SaaS apps are available with single sign-on. For this protection, you can filter access to specific websites and website categories. The service enables administrators to provide a cohesive experience, integrating single sign-on, and content inspection.
Verify that the libgtkglext1 package is available. Citrix Workspace app supports the display of H. This support uses the deep compression codec feature, which is enabled by default. The feature provides better performance of rich and professional graphics applications on WAN networks compared with the existing JPEG codec. Follow the instructions in this topic to disable the feature and process graphics using the JPEG codec instead.
You can also disable text tracking while still enabling deep compression codec support. This setting helps to reduce CPU costs while processing graphics that include complex images but relatively small amounts of text or non-critical text.
If you do, H. In the wfclient. This setting also disables text tracking. With deep compression codec support enabled, in the wfclient. You can improve the way that JPEG-encoded screen tiles are processed using the direct-to-screen bitmap decoding, batch tile decoding, and deferred XSync features. Note: Enabling batch tile decoding also enables deferred XSync. In earlier versions, the debug. Also as of Version , the debug. Logging captures the Citrix Workspace app deployment details, configuration changes, and administrative activities to a logging database.
When Citrix Workspace app is installed, a user called citrixlog is created to handle the logging functionality. The following table lists various modules and their corresponding trace class values. Use the following table for a specific command-line log value set:. The Citrix Workspace-Preferences dialog appears.
Due to the large amount of data that can be generated, tracing might significantly impact the performance of Citrix Workspace app. The Verbose level is recommended only if necessary for troubleshooting. Click Save and Close after you select the desired logging level. The changes are applied in the session dynamically. Click the settings icon next to the Logging option drop-down menu. The Citrix Log Preferences dialog appears.
If you delete the ICAClient. To collect logs for a particular module, open the debug. You can add different classes separated by the pipe symbol. The following table lists the wfica modules and their corresponding trace class values:. The following table lists the connection center module and their corresponding trace class value:. If ctxlogd turns unresponsive, the logs are traced in the syslog. For information about getting new and refreshed logs in subsequent launches, see Syslog configuration.
For example,. To verify that a new syslog is available, delete syslog and run the command: sudo service rsyslog restart. Server-side configuration: uncomment the following lines in the rsyslog.
Client-side configuration: add the following line in the rsyslog. Previously, there was no tool available to collect the log files in Citrix Workspace app.
Log files were present in different folders. You had to manually collect log files from different folders. Starting with version, Citrix Workspace app introduces collectlog. You can run the tool using the command line. The log files are generated as a compressed log file. You can download it from the local server. Starting with Version , two new files are added to collect log files using the collectlog.
Do not use two different installation methods on the same machine. If you do, you might see error messages and unwanted behavior.
The tarball package does not do dependency checks nor install dependencies. All system dependencies must be resolved separately. Type the path and name of the required installation directory and then press Enter. Or, press Enter to install Citrix Workspace app in the default location. To integrate Citrix Workspace app with GStreamer , type y at the prompt.
On some platforms, installing the client from a tarball package can cause the system to become unresponsive after prompting you to integrate with KDE and GNOME. This issue occurs with the first-time initialization of gstreamer After running the command, you can rerun the tarball package without experiencing the issue.
Type y at the prompt to install USB support. Run the installer as root to access this install option. Verify whether the uninstallation of the Citrix Workspace app is successful. For more information see, Verify the version of the Citrix Workspace app section. Before updating Citrix Workspace app, verify the current version of the Citrix Workspace app installed in your system.
To update to a newer version of the Citrix Workspace app, download and install the latest Citrix Workspace app from Citrix Downloads. For installation procedure, you can follow the steps mentioned at the following installation section:. If you have the Citrix Workspace app installed in your system, the system detects the existing app, and updates to a newer version.
However, for Tarball packages, consider a scenario where you have installed the earlier version of the app in one folder and you have installed the newer version of the app in a different folder. In this scenario, both versions of the app might exist in your system. The Citrix Workspace screen overlay appears on the first launch of the app, when you update, and when you uninstall and reinstall the app.
Click Got it to continue using Citrix Workspace app, or click Learn more for more details. About this release. System requirements and compatibility. Install, Uninstall, and Update. Get started. Secure communications. ICA settings reference. Aviso legal. Este texto foi traduzido automaticamente. Este artigo foi traduzido automaticamente.
Citrix Workspace app for Linux is a software client that lets you access your desktops, applications, and data easily and securely from many types of Linux devices. Citrix Workspace app provides access from your desktop, Citrix Workspace user interface, or web browsers. Working with a Citrix-enabled IT infrastructure, Citrix Workspace app gives you the mobility, convenience, and freedom you need to get your work done.
You can use Citrix Workspace app on PCs, tablets, and thin clients. By using Citrix StoreFront with Citrix Workspace app, your organization can provide self-service access to applications and desktops.
