Amdgpu rocm

Make sure keyring dir exists

sudo mkdir --parents --mode=0755 /etc/apt/keyrings

Refresh AMD key, same as you already did

wget https://repo.radeon.com/rocm/rocm.gpg.key -O - | \

 gpg --dearmor | sudo tee /etc/apt/keyrings/rocm.gpg > /dev/null

Add the missing AMDGPU kernel-driver repo for Ubuntu 24.04 / noble

sudo tee /etc/apt/sources.list.d/amdgpu.list > /dev/null <<'EOF' deb [arch=amd64 signed-by=/etc/apt/keyrings/rocm.gpg] https://repo.radeon.com/amdgpu/30.30.3/ubuntu noble main EOF

sudo apt update

Confirm apt now sees it

apt-cache policy amdgpu-dkms

Install prerequisites + driver

sudo apt install "linux-headers-$(uname -r)" "linux-modules-extra-$(uname -r)" sudo apt install amdgpu-dkms

Add yourself for ROCm access, then reboot

sudo usermod -a -G render,video "$LOGNAME" sudo reboot