Frigate script with working Coral M.2 TPU?

[Eisbaer2]

I installed Frigate in an LXC container using this script: https://community-scripts.github.io/ProxmoxVE/scripts?id=frigate

Now I wanted to set up my Coral TPU so that frigate also uses it. The Apex driver is loaded in the container. But I can't get frigate to use the Coral TPU.
Does anyone have any instructions for me on how to use a Coral M.2 TPU with this script version?

• My LXC container says: root@frigate:~# ls /dev/apex_0 => /dev/apex_0
  part of my frigate config yaml:

detectors:
  coral:
    type: edgetpu
    device: /dev/apex_0

In my frigate log I can find these lines:

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File "/opt/frigate/frigate/detectors/plugins/edgetpu_tfl.py", line 41, in __init__
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edge_tpu_delegate = load_delegate("libedgetpu.so.1.0", device_config)
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File "/usr/lib/python3/dist-packages/tflite_runtime/interpreter.py", line 162, in load_delegate
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raise ValueError('Failed to load delegate from {}\n{}'.format(
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lueError: Failed to load delegate from libedgetpu.so.1.0
unknown
2025-06-03 08:08:29
unknown
25-06-03 08:08:27.183937
info
2025-06-03 08:08:27
detector.coral
Starting detection process: 3890
info
2025-06-03 08:08:27
frigate.detectors.plugins.edgetpu_tfl
Attempting to load TPU as /dev/apex_0
error
2025-06-03 08:08:27
frigate.detectors.plugins.edgetpu_tfl
No EdgeTPU was detected. If you do not have a Coral device yet, you must configure CPU detectors.

[alienatedsec]

You can try the below @Eisbaer2

The LXC container needs access to the coral and the config file needs some modification. Also the host needs drivers too.

blakeblackshear/frigate#5448 (comment)

Here is what I had to do with mine to get the Coral recognised. The full instructions are above.

Edit the config file of the LXC using nano

nano /etc/pve/lxc/10x.conf

Add the following at the bottom of the file

lxc.cgroup2.devices.allow: c 226:* rwm
lxc.cgroup2.devices.allow: c 120:* rwm
lxc.mount.entry: /dev/dri/renderD128 dev/dri/renderD128 none bind,optional,create=file 0, 0
lxc.mount.entry: /dev/apex_0 dev/apex_0 none bind,optional,create=file 0, 0

[Eisbaer2]

Thank you, will try that.

[Eisbaer2]

@alienatedsec: unfortunately no change.
Three of the four lines I already had. Added the one with 120. Rebooted. No change.
Frigate Log shows:
edge_tpu_delegate = load_delegate("libedgetpu.so.1.0", device_config)
File "/usr/lib/python3/dist-packages/tflite_runtime/interpreter.py", line 162, in load_delegate
raise ValueError('Failed to load delegate from {}\n{}'.format(
lueError: Failed to load delegate from libedgetpu.so.1.0

If I understand correctly you installed a docker vm in the LXC container? Why that? I only wanted to have a LXC.

[Eisbaer2]

I found the solution: The correct entry in the frigate yaml is: "device: pci", and nothing like...apex...