You can set up an RHEL 6.6/6.7/6.8 guest operating system so that Horizon 7 for Linux desktop can take advantage of vDGA capabilities on the ESXi host.

Caution: Before you begin, verify that Horizon Agent is not installed on the Linux virtual machine. If you install Horizon Agent before you configure the machine to use vDGA, required configuration parameters in the xorg.conf file are overwritten, and vDGA does not work. You must install Horizon Agent after the vDGA configuration is completed.