Arducam IMX477 not detected on Raspberry Pi 4 Debian Bullseye 64-bit - libcamera-hello: no cameras available

Raspberry Pi Cameras
1

Hi everyone, I’m having trouble getting my Arducam IMX477 (HQ camera) detected on a Raspberry Pi 4 running Debian Bullseye 64-bit full. When I run libcamera-hello it just returns “no cameras available”. I’ve already checked the ribbon cable connections and they seem to be seated correctly. Any ideas what could be wrong?

2

That “no cameras available” error usually means the sensor overlay isn’t being loaded. For the IMX477 HQ camera you need to add the device tree overlay to /boot/config.txt. Open it with:

sudo nano /boot/config.txt

Then add the line dtoverlay=imx477 under the [all] section at the bottom. Save it and reboot the Pi. After that, try libcamera-hello again.

3

Thanks for the suggestion. I added dtoverlay=imx477 under [all] in /boot/config.txt and rebooted, but I’m still getting “no cameras available” from libcamera-hello. I re-checked the ribbon cable too, still seated correctly. Not sure what else to try.

4

Let’s gather some more system info so we can figure out what’s going on. Please reboot the Pi, then run the following to generate a camera bug report:

wget -O arducam-camera-bug-report https://github.com/ketai-dhr/arducam-camera-bug-report/releases/download/tools/arducam-camera-bug-report
chmod +x ./arducam-camera-bug-report
./arducam-camera-bug-report

This will produce an arducam-bug-report.txt file in the current directory. Please send me that file via private message so I can take a closer look.

5

I’ve run the bug report tool and sent the arducam-bug-report.txt file over via private message. Let me know what you find.

6

Thanks, I’ve reviewed the report. It looks like the dtoverlay=imx477 line still isn’t being applied in the active config, so the earlier edit may not have been saved properly. Can you open /boot/config.txt again, re-add dtoverlay=imx477 under [all], and double-check that it actually saved before rebooting? After the reboot, you can confirm with:

grep dtoverlay /boot/config.txt

7

That was it. I opened /boot/config.txt again and the line hadn’t actually been saved properly. Re-added dtoverlay=imx477 under [all], rebooted, and now libcamera-hello detects the camera. Thanks for the help!

8

One more question now that it’s working — how do I get the full 12.3MP out of this IMX477 HQ camera? I want to make sure I’m capturing at the maximum resolution.

9

Glad it’s working. For the maximum 12.3MP (4056x3040) resolution, use libcamera-still with the --width and --height options. To preview at max resolution:

libcamera-still -t 0 --viewfinder-width 4056 --viewfinder-height 3040

To capture a still image at max resolution:

libcamera-still -t 5000 -o test.jpg --width 4056 --height 3040

Or combine preview and capture in one command:

libcamera-still -t 8000 -o test.jpg --viewfinder-width 4056 --viewfinder-height 3040 --width 4056 --height 3040

The --viewfinder-width and --viewfinder-height options control the preview resolution, while --width and --height control the captured image resolution.