Unsupported GPU Processing Mode

[Aravisian]

This is tricky even for longtime GnuLinux users.
DaVinci is stubborn with AMD GPU's on Linux...

Have you checked this thread?

DaVinci Resolve 20 on Zorin 18 with AMD GPU

DaVinci Resolve 20 on Zorin 18 with AMD GPU – what actually works (and what doesn’t) I want to document what finally worked for me with DaVinci Resolve 20 on Zorin (Ubuntu 24.04 base) using an AMD discrete GPU, and just as importantly, what was not necessary and caused problems. This is not a “magic script” post — it’s about keeping the system clean and reproducible. My hardware: 9950X3D & 9070 XT TL;DR You do NOT need AMDGPU-PRO You do NOT need ROCm for Resolve to detect the GPU Mesa OpenC…

I recognize the pattern of ChatGPT. That said, the user that posted that output says it worked for them...