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Session connection fails with four 4K displays and NVENC enabled on a 2Q, 3Q, or 4Q vGPU#

Description#

Desktop session connections fail for a 2Q, 3Q, or 4Q vGPU that is configured with four 4K displays and for which the NVIDIA hardware-based H.264/HEVC video encoder (NVENC) is enabled. This issue affects only Teradici Cloud Access Software sessions on Linux guest VMs.

This issue is accompanied by the following error message:

This Desktop has no resources available or it has timed out

This issue is caused by insufficient frame buffer.

Workaround#

Ensure that sufficient frame buffer is available for all the virtual displays that are connected to a vGPU by changing the configuration in one of the following ways:

  • Reducing the number of virtual displays. The number of 4K displays supported with NVENC enabled depends on the vGPU.

    vGPU

    4K Displays Supported with NVENC Enabled

    2Q

    1

    3Q

    2

    4Q

    3

  • Disabling NVENC. The number of 4K displays supported with NVENC disabled depends on the vGPU.

    vGPU

    4K Displays Supported with NVENC Disabled

    2Q

    2

    3Q

    2

    4Q

    4

  • Using a vGPU type with more frame buffer. Four 4K displays with NVENC enabled on any Q-series vGPU with at least 6144 MB of frame buffer are supported.

Status#

Not an NVIDIA bug

Ref. ##

200701959