User manual

Configure VMware Blast Options
You can congure H.264 decoding and network protocol options for remote desktop and application
sessions that use the VMware Blast display protocol.
The maximum resolution that is supported depends on the capability of the graphical processing unit (GPU)
on the client. A GPU that can support 4K resolution for JPEG/PNG might not support 4K resolution for H.
264. If a resolution for H.264 is not supported, Horizon Client uses JPEG/PNG instead.
H.264 decoding is supported on AMD, NVIDIA, and Intel GPUs. H.264 decoding requires that the graphics
library OpenGL 3.2 or later is installed for AMD and NVIDIA GPUs.
If you plan to use H.264 decoding with a NVIDIA GPU, install VDPAU (Video Decode and Presentation API
for Unix). VDPAU is no longer included with the latest NVIDIA driver and must be installed separately.
To use H.264 with an Intel GPU, the Intel VA-API driver and the GLX VA-API libraries are required.
Running the command vainfo shows the H.264 proles. If the VA-API driver version is 1.2.x or earlier, you
must add the entry mks.enableGLBasicRenderer = TRUE to /etc/vmware/config, /usr/lib/vmware/config, or
~/.vmware/config. The conguration les are processed in the following order:
1 /etc/vmware/config
2 /usr/lib/vmware/config
3 ~/.vmware/config
With Red Hat 7.2, Intel GPU, Intel driver version 1.2 or earlier, OpenGL 3.2, and H.264 enabled, you must
add the following entries to one of the three conguration les to avoid display issues such as a black
screen.
mks.enableGLRenderer=FALSE
mks.enableGLBasicRenderer=TRUE
H.264 is not supported on SLED 11 SP4 with Intel GPU because the xorg version is too old.
Prerequisites
This feature requires Horizon Agent 7.0 or later.
Procedure
1 In the desktop and application selector window, select Connection >  or click the Seings icon
in the upper-right portion of the window, and select VMware Blast in the left pane of the Seings
window.
2 Congure the decoding and network protocol options.
Option Description
H.264
Select this option to allow H.264 decoding in Horizon Client. When this
option is selected (the default seing), Horizon Client uses H.264 decoding
if the agent supports H.264 software encoding. If the agent does not
support H.264 software encoding, Horizon Client uses JPG/PNG decoding.
Deselect this option to use JPG/PNG decoding.
UDP
Select this option to allow UDP networking in Horizon Client. When this
option is selected (the default seing), Horizon Client uses UDP
networking if UDP connectivity is available. If UDP networking is blocked,
Horizon Client uses TCP networking.
Deselect this option to use TCP networking.
N UDP is disabled by default on a Horizon remote desktop. For UDP
to work, it must be enabled on the desktop, the client, and the Blast Secure
Gateway (BSG).
Chapter 1 System Requirements and Installation
VMware, Inc. 21