GPU hardware acceleration not working

[lcsfox]

Is there an existing issue for this?

• I have searched the existing issues

Current Behavior

I have the docker container running with access to the GPU (nvidia T400). nvidia-smi works fine inside and outside of the container.
I can run oguzpastirmaci/gpu-burn next to the firefox container and I can see the load on the GPU.

What I see in about:support section

Expected Behavior

No response

Steps To Reproduce

Install nvidia container toolkit
run the compose file

Environment

OS : Debian 12
Docker version : 27.5.1 Installed from docker website

CPU architecture

x86-64

Docker creation

---
services:
  firefox:
    image: lscr.io/linuxserver/firefox:latest
    container_name: firefox
    security_opt:
      - seccomp:unconfined #optional
    environment:
      - PUID=1000
      - PGID=1000
      - NVIDIA_DRIVER_CAPABILITIES=all
      - TZ=Etc/UTC
      - FIREFOX_CLI=https://www.linuxserver.io/ #optional
    volumes:
      - /opt/dockerfiles/firefox_v2/config:/config
    ports:
      - 3000:3000
      - 3001:3001
    shm_size: "1gb"
    restart: unless-stopped
    deploy:
      resources:
        reservations:
          devices:
            - driver: nvidia
              count: 1
              capabilities: [compute,graphics,utility,video]

Container logs

firefox  | MESA: error: ZINK: failed to choose pdev
firefox  | glx: failed to create drisw screen
firefox  | failed to load driver: zink
firefox  | [GFX1-]: glxtest: libEGL initialize failed
firefox  | [GFX1-]: glxtest: No visuals found

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