Horizon Agent and Horizon Client, and the remote desktops and client systems on which you install the agent and client software, must meet certain requirements to support the HTML5 Multimedia Redirection feature.

With HTML5 Multimedia Redirection, if an end user uses the Google Chrome or Microsoft Edge browser in a remote desktop, HTML5 multimedia content is sent to the client system. The client system plays the multimedia content, which reduces the load on the ESXi host, and the end user has a better audio and video experience.

Remote desktop
  • Horizon Agent must be installed on the virtual desktop or RDS host for published desktops with the HTML5 Multimedia Redirection custom setup option selected. Beginning with Horizon Agent 7.10, the HTML5 Multimedia Redirection custom setup option is removed and HTML5 Multimedia Redirection is installed by default. For more information, see the topics about installing Horizon Agent in the Setting Up Virtual Desktops in Horizon and Setting Up Published Desktops and Applications in Horizon documents.
  • The HTML5 Multimedia Redirection group policy settings must be configured on the Active Directory server. See the topics about configuring HTML5 Multimedia Redirection in the Configuring Remote Desktop Features in Horizon document.
  • The Chrome or Edge browser must be installed.
  • The VMware Horizon HTML5 Multimedia Redirection extension must be installed in the Chrome or Edge browser. See the topics about configuring HTML5 Multimedia Redirection in the Configuring Remote Desktop Features in Horizon document.
Client system
  • The client must be running on a 64-bit Linux operating system. 32-bit operating systems are not supported.
  • Client systems running RHEL 7.9 are not supported.
  • The HTML5 Multimedia Redirection Support custom setup option must be selected when you install Horizon Client. This option is selected by default.
  • GNU C Library (glibc) version 2.14 or later must be installed on the client system.
Display protocol for the remote session
  • PCoIP
  • VMware Blast
TCP port
HTML5 Multimedia Redirection uses port 9427.
Limitations
The HTML5 Multimedia Redirection feature has the following limitations.
  • The Horizon Client relative mouse feature is not supported.
  • You cannot use Mute site (Chrome browser) or Mute tab (Edge browser) to mute redirected video content.
  • To use HTML5 Multimedia Redirection from Chrome on a Linux client system, open at most one Chrome browser published by an RDS host. HTML5 Multimedia Redirection does not work properly if you open an additional Chrome browser published by another RDS host.
  • If you encounter slow performance when playing redirected multimedia content on a Linux client system that uses lower-capacity thin client hardware, you can optimize the system performance as described here. Add the entrydisableGPU.html5mmr=true to one of the following three configuration files. The configuration files are processed in the listed order:
    1. /usr/lib/vmware/config
    2. /etc/vmware/config
    3. ~/.vmware/config