Product Documentation

Known issues

May 22, 2017

The following issues have been identified in this release:

  • The indicator-datetime-service process does not consume the $TZ environment variable.  As a result, the unity panel on Ubuntu 16.04 Unity Desktop does not display the time zone of the user device when it is different from the time zone of the user session.

  • Easy install might cause network disconnection when you enter the DNS IP address. This is a known issue with RHELs6.6 and RHELw6.9. There are two workarounds to this issue.

    Workaround A
  1. Recover your network manually.
  2. Delete all #easyinstall strings from the network interface files under /etc/sysconfig/network-scripts/ (such as the ifcfg-eth0 and ifcfg-eth1 files).
  3. Check whether /etc/resolv.conf is configured correctly. If not, correct the configuration.
  4. Rerun to complete the Linux VDA installation and configuration. 

    Workaround B
  1. Recover your network manually.
  2. Open /opt/Citrix/VDA/sbin/, and delete all #easyinstall strings from the confDNS() function.
  3. Rerun to complete the Linux VDA installation and configuration. 

  • While playing a video, session roaming from Citrix Receiver for Windows to Citrix Receiver for Android fails. As a workaround, log off the Citrix Receiver for Windows session and launch a new session on Citrix Receiver for Android.

  • Ubuntu graphics: In HDX 3D Pro, a black frame might appear around applications after resizing the desktop viewer, or in some cases, the background can appear black.
  • Printers created by the Linux VDA printing redirection might not be deleted 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 Receiver for Android CAPS LOCK state can be reversed when session roaming. The CAPS LOCK state can be lost when roaming an existing connection to the Citrix Receiver 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 connecting to the Linux VDA using Citrix Receiver for Mac. Citrix Receiver for Mac sends AltGr for both left and right Options/Alt keys by default. It is possible to change this within the Citrix Receiver settings but the results vary with different applications.
  • Slow session launches might occur when using the Linux VDA with a Delivery Controller from XenDesktop v7.1. The slow launch is caused by the presence of CGP settings in the ICA file generated by the v7.1 Delivery Controller. When these settings are present, Citrix Receiver attempts to establish a connection on TCP port 2598. The default firewall settings on some Linux distributions, such as SLED 12, is to drop the TCP SYN packets, resulting in a timeout and hence a slow session launch. As a workaround, configure the firewall on the Linux VDA to reject the TCP SYN on port 2598. This issue has been addressed in later versions of the Delivery Controller.
  • Registration fails when the Linux VDA is rejoined to the domain. Under certain circumstances, when the Linux VDA is rejoined to the domain and a fresh set of Kerberos keys are generated, the Broker fails to establish a security context with the VDA. This is often caused by the Broker using a cached out-of-date VDA service ticket based on the previous set of Kerberos keys. This won’t stop the VDA from connecting to the Broker, but the Broker will not be able to establish a return security context to the VDA. The usual symptom is that the VDA registration fails.

This problem will eventually resolve itself when the VDA service ticket eventually expires and is renewed, but service tickets are usually long-lived. This could potentially take a long time.

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

command Copy

klist -li 0x3e4 purge

This will purge all service tickets in the LSA cache held by the Network Service principal under which the Citrix Broker Service runs. This will remove service tickets for other VDAs and potentially other services. However, this is harmless – these service tickets will be reacquired from the KDC when needed again.

  • Audio plug-n-play is not supported. Citrix recommends that any audio capture device be connected to the client machine before starting to record audio in the ICA session. If a device is attached after the audio recording application has started, the application might become unresponsive. If this issue occurs, restart the application. A similar issue can occur if a capture device is unplugged while recording. 
  • Citrix Receiver for Windows 10 might experience audio distortion during audio recording.