LVDA1912CU5 + ubuntu18.04+ Citrix hypervisor 8.2 + GPU pass-through, published desktop black screen. GPU Type: Geforce GTX 1660Ti

Enable the non-GRID 3D graphics feature：
/opt/Citrix/VDA/bin/ctxreg create -k "HKEY_LOCAL_MACHINE\System\CurrentControlSet\Control\Citrix\XDamage" -t "REG_DWORD" -v "XDamageEnabled" -d "0x00000001" --force
/opt/Citrix/VDA/bin/ctxreg create -k "HKEY_LOCAL_MACHINE\System\CurrentControlSet\Control\Citrix\XDamage" -t "REG_SZ" -v "DriverName" -d "nvidia" --force

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Problem Cause

1 hdx.log

2022-10-11 16:06:16.892 <P3228:S2> citrix-ctxgfx: create_session_handle: Failed to create NVFBC handle, This hardware does not support NvFBC(status=7)

2022-10-11 16:06:16.892 <P3228:S2> citrix-ctxgfx: nvfbc_create_capture2sys_session: Failed to create capture session handle!

2022-10-11 16:06:16.892 <P3228:S2> citrix-ctxgfx: nv_frame_grab_thread: Failed to create capture session

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​2 GeForce GTX 1660Ti does not support NVFBC