Error setting up Logitech c920s with crowsnest for Ender 3 v3 se

[gaunt panther]

I am having some issues with getting the webcam working with my printer. For some reason libcamera returns this
libcamera-hello --list-cameras No cameras available! but lsusb gives me back this

$ lsusb
Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 001 Device 004: ID 046d:082d Logitech, Inc. HD Pro Webcam C920
Bus 001 Device 003: ID 1a86:7523 QinHeng Electronics CH340 serial converter
Bus 001 Device 002: ID 2109:3431 VIA Labs, Inc. Hub
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub

I don't know why crowsnest is unable to see the camera? There is a blue light that is turned on the camera when its connected to the pi, but on fluidd I see a black screen. I attached my camera configurations with the post. Any help would be really appreciated.

[thin grail]

Ahoi @gaunt panther!
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[gaunt panther]

Log and report.txt

[orchid ridge]

Because USB cams are no libcamera cams that's why it won't return anything

For usb cams, look at the log

[gaunt panther]

I see, I did look at the logs could not make much sense of them

[orchid ridge]

Currently you have ustreamer set, but want to use webrtc of camera-straemer

Here is your config and directly below it, the cam

[gaunt panther]

Yeah i see the camera

[orchid ridge]

To get the cam in the ui, either change the service and stream url, or change the mode to camera-streamer in crowsnest.conf

[gaunt panther]

so I need to change the mode?

[orchid ridge]

If you want webrtc, yes

[gaunt panther]

I did change the mode and saved and restarted right now still black

[orchid ridge]

Oh, you got a pi4 with Bookworm. Then you also need to add following to the /boot/firmware/config.txt:

[pi4]
gpu_mem=128```

[gaunt panther]

oh I see

[orchid ridge]

After you add that, reboot the pi

[gaunt panther]

okay I will

[orchid ridge]

That's some weird thing, only happen on the pi4 with Bookworm

[gaunt panther]

I'm rebooting now