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Dell ThinOS 2402 Administrator’s Guide

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High Efficiency Video Coding

In ThinOS 9.1.4234, VMware Blast Extreme supports High Efficiency Video Coding (HEVC). HEVC is also known as H.265 and it is the industry successor to H.264. Compared to H.264, H.265 provides 50% more compression by maintaining the same quality as H.264. This feature is disabled by default. HEVC in Blast Extreme requires both the ESXi hosts that support the virtual desktops, and RDSH servers to have NVIDIA Tesla or newer graphics cards to offload the encoding. HEVC does not work with only ESXi CPU encoding. If there are no supported graphics cards present, the H.264 or JPEG/PNG encoding is used.

NOTE:HEVC requires hardware support including the graphics card, on both the client and the agent side. If either the client or the agent cannot support HEVC, the session falls back to H.264.

To enable this feature from the local user interface, select the Allow High Efficiency Video Decoding (HEVC) check box from Connection Manager > Global Connection Settings > Horizon. You can go to the VMware Horizon Performance tracker and see Encoder Name to verify whether HEVC is working. If you launch a session that has been launched from another device, the HEVC feature does not work. The server uses H.264 in this scenario. To use HEVC, sign off other sessions before connecting to the session from the ThinOS client.

NOTE:You must upgrade Wyse Management Suite to version 3.5 or later to support the HEVC feature.

For more information, see the VMware Blast Extreme Optimization Guide at techzone.vmware.com.

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