# IMX412 not detecting

Source: https://forum.modalai.com/topic/5128/imx412-not-detecting
Category: ESCs, Sensors and Accessories (https://forum.modalai.com/category/15/escs-sensors-and-accessories)
Tags: image-sensor
Posted: 2026-03-23 20:00:55 UTC by fhaltmayer
Replies: 1 · Views: 777

## fhaltmayer · 2026-03-23 20:00:55 UTC

Hi, 
Trying to run the IMX412 with the VOXL2 and have followed many of the threads regarding getting it to work. Ive gotten close but am running into a main problem. The camera is being noticed when running voxl-camera-server -l but it isnt being counted as a valid one. What am I missing here?

```
voxl2:/usr/lib/camera$ voxl-camera-server -l
DEBUG:   Attempting to open the hal module
DEBUG:   SUCCESS: Camera module opened on attempt 0
DEBUG:   ----------- Number of cameras: 0

DEBUG:   cci-direct: using voxl_platform_mod config 0 layout
DEBUG:   trying to open idx  0 /dev/v4l-subdev8
DEBUG:   trying to open idx  1 /dev/v4l-subdev9
DEBUG:   trying to open idx  2 /dev/v4l-subdev11
Cam idx: 0, Cam slot: 2, Slave Address: 0x0034, Sensor Id: 0x0577
DEBUG:   trying to open idx  3 /dev/v4l-subdev12
DEBUG:   trying to open idx  4 /dev/v4l-subdev10
DEBUG:   trying to open idx  5 /dev/v4l-subdev13
DEBUG:   Note: This list comes from the HAL module and may not be indicative
DEBUG:   	of configurations that have full pipelines

DEBUG:   Number of cameras: 0
```

The server-config: 
```
voxl2:/usr/lib/camera$ cat /etc/modalai/voxl-camera-server.conf
/**
 * voxl-camera-server Configuration File
 *
 * Each camera has configurations for up to 4 HAL3 streams:
 *    - `preview` stream for raw unprocessed images from CV cameras
 *    - `small_video` 720p (ish) h264/h265 compressed for fpv video streaming
 *    - `large_video` 4k (ish) h264/h265 for onboard video recording to disk
 *    - `snapshot` ISP-processed JPG snapshots that get saved to disk
 *
 * on QRB5165 platforms (VOXL2 and VOXL2 mini) you can only have 3 of the 4 enabled
 *
 * This file is generated from default values by voxl-configure-cameras.
 * Do not expect arbitrary resolutions to work, the ISP and video compression
 * pipelines only support very specific resolutions.
 *
 * The default video compression mode is cqp or Constant Quantization Parameter
 *
 *
 *
 */
{
	"version":	0.1,
	"fsync_en":	false,
	"fsync_gpio":	109,
	"cameras":	[{
			"type":	"imx412",
			"name":	"imx412",
			"enabled":	true,
			"camera_id":	0,
			"fps":	30,
			"en_rotate":	false,
			"en_preview":	false,
			"preview_width":	640,
			"preview_height":	480,
			"en_raw_preview":	false,
			"en_small_video":	true,
			"small_video_width":	1024,
			"small_video_height":	768,
			"small_venc_mode":	"h264",
			"small_venc_br_ctrl":	"cqp",
			"small_venc_Qfixed":	30,
			"small_venc_Qmin":	15,
			"small_venc_Qmax":	40,
			"small_venc_nPframes":	9,
			"small_venc_mbps":	2,
			"en_large_video":	true,
			"large_video_width":	4056,
			"large_video_height":	3040,
			"large_venc_mode":	"h264",
			"large_venc_br_ctrl":	"cqp",
			"large_venc_Qfixed":	40,
			"large_venc_Qmin":	15,
			"large_venc_Qmax":	50,
			"large_venc_nPframes":	29,
			"large_venc_mbps":	40,
			"en_snapshot":	true,
			"en_snapshot_width":	4056,
			"en_snapshot_height":	3040,
			"exif_focal_length":	3.1,
			"exif_focal_length_in_35mm_format":	17,
			"exif_fnumber":	1.24,
			"snapshot_jpeg_quality":	75,
			"ae_mode":	"isp",
			"gain_min":	54,
			"gain_max":	8000
		}]
}
```

## Reply by Alex Kushleyev (ModalAI staff) · 2026-03-25 13:48:47 UTC

@fhaltmayer , it looks like there maybe something missing from `/usr/lib/camera/`, as the camera is detected by the i2c probe but not accepted by the system. 

Can you please let me know how exactly the camera is connected (to camera slot/id 2, it seems) and also list all the contents of `/usr/lib/camera/`.

Alex