Linux Virtual Delivery Agent

Known issues

The following issues have been identified in this release:

  • The Linux VDA does not support SecureICA for encryption. Enabling SecureICA on the Linux VDA causes session launch failure.

  • In a GNOME desktop session, attempts to change the keyboard layout might fail. [CVADHELP-15639]

  • Non-seamless published applications might exit shortly after launch. The issue occurs after a Mutter upgrade to a version later than mutter-3.28.3-4. To work around the issue, use mutter-3.28.3-4 or earlier. [LNXVDA-6967]

  • An unexpected window appears during file download. The window does not affect the file download functionality and it disappears automatically after a while. [LNXVDA-5646]

  • The default settings of PulseAudio cause the sound server program to exit after 20 seconds of inactivity. When PulseAudio exits, audio does not work. To work around this issue, set exit-idle-time=-1 in the /etc/pulse/daemon.conf file. [LNXVDA-5464]

  • Sessions cannot be launched in Citrix Workspace app for Linux when SSL encryption is enabled. [RFLNX-1557]

  • Ubuntu graphics: In HDX 3D Pro, a black frame might appear around applications after resizing the Desktop Viewer, or sometimes, the background can appear black.

  • Printers created by the Linux VDA printing redirection might not be removed after logging out of a session.

  • CDM files are missing when a directory contains numerous files and subdirectories. This issue might occur if the client side has too many files or directories.

  • In this release, only UTF-8 encoding is supported for non-English languages.

  • Citrix Workspace app for Android CAPS LOCK state might be reversed during session roaming. The CAPS LOCK state can be lost when roaming an existing connection to Citrix Workspace app for Android. As a workaround, use the Shift key on the extended keyboard to switch between upper case and lower case.

  • Shortcut keys with ALT do not always work when you connect to the Linux VDA using Citrix Workspace app for Mac. Citrix Workspace app for Mac sends AltGr for both left and right Options/Alt keys by default. You can modify this behavior within the Citrix Workspace app settings but the results vary with different applications.

  • Registration fails when the Linux VDA is rejoined to the domain. The rejoining generates a fresh set of Kerberos keys. But, the Broker might use a cached out-of-date VDA service ticket based on the previous set of Kerberos keys. When the VDA tries to connect to the Broker, the Broker might not be able to establish a return security context to the VDA. The usual symptom is that the VDA registration fails.

    This problem can eventually resolve itself when the VDA service ticket expires and is renewed. But because service tickets are long-lived, it can take a long time.

    As a workaround, clear the Broker’s ticket cache. Restart the Broker or run the following command on the Broker from a command prompt as Administrator:

     klist -li 0x3e4 purge
     <!--NeedCopy-->
    

    This command purges all service tickets in the LSA cache held by the Network Service principal under which the Citrix Broker Service runs. It removes service tickets for other VDAs and potentially other services. However, it is harmless – these service tickets can be reacquired from the KDC when needed again.

  • Audio plug-n-play is not supported. You can connect an audio capture device to the client machine before starting to record audio in the ICA session. If a capture device is attached after the audio recording application has started, the application might become unresponsive and you must restart it. If a capture device is unplugged while recording, a similar issue might occur.

  • Citrix Workspace app for Windows might experience audio distortion during audio recording.

Known issues