Roon Rock UEFI Intel NUC11TNB HDMI output

Roon Core Machine

Roon Optimized Core Kit
OS: RoonOS 1.0 (build 254) production
ROCK
Intel NUC11TNB, i5, 16GB RAM

Networking Gear & Setup Details

via LAN

Connected Audio Devices

Smart TV Samsung Series 8 via HDMI

Number of Tracks in Library

30,000 tracks

Description of Issue

Good Day Community,

The installation Roon Rock with UEFI works fine with Intel NUC11TNB. But I`m facing the Issue that the HDMI output is not showing up in Roon, only the airplay Devices. If i install Ubuntu-OS on the NUC Machine and then install Roon Server, it works fine and the HDMI output shows up.

Question 1: Is there a driver Issue ?
Question 2. Does Roon Rock not supported NUC11TNB the HDMI Output ?
Question 3: Is there any Solution ? Because I checked the BIOS Settings as well and HDMI/Audio/USB-C Type is active → Advanced → Onboard Devices ->HDMI/Audio is checked

Or is something wrong with the last Roon Rock FW-Update ?

Many thanks for your support and help.

Cheers!

I have a NUC 12, for which UEFI boot is the only option. I have the same issue where no HDMI output is detected by ROCK. By comparison, I also have a NUC 8, which still allows legacy boot, and HDMI audio works just fine.