VD55G0 not detected on Raspberry Pi 5

asdfasdf · ‎2026-01-25

Dear all,

I'm trying to get a VD55G0 sensor (promodule connected via P-board) working on a Raspberry Pi 5. I followed the Linux Start Guide for the driver. The only difference with respect to the guide were the name of the device tree file (guide says pcb4189.dts which the repository does not contain, so I used pcb4189_vd55g0.dts), and the names of the libcamera packages (the filenames seem to have changed, I have installed both .deb packages from the STSW-IMG505_RPI download). However, the camera sensor is not detected at all:

$ rpicam-hello –-list-cameras
[0:12:15.584143721] [1262]  INFO Camera camera_manager.cpp:340 libcamera v0.0.0+5981-73aeb895-dirty (2025-12-09T14:49:21UTC)
Made DRM preview window
Preview window unavailable
ERROR: *** no cameras available ***

$ ls /sys/bus/i2c/drivers
dummy  stmpe-i2c

$ uname -r
6.12.62+rpt-rpi-2712

There is some output in the system log regarding the sensor, but I'm not sure what to make of that:

$ sudo dmesg | grep vd55g0
[    0.938491] /axi/pcie@1000120000/rp1/i2c@80000/vd55g0@10: Fixed dependency cycle(s) with /axi/pcie@1000120000/rp1/csi@128000
[    0.949784] /axi/pcie@1000120000/rp1/csi@128000: Fixed dependency cycle(s) with /axi/pcie@1000120000/rp1/i2c@80000/vd55g0@10
[    0.961174] /axi/pcie@1000120000/rp1/i2c@80000/vd55g0@10: Fixed dependency cycle(s) with /axi/pcie@1000120000/rp1/csi@128000
[    0.972464] /axi/pcie@1000120000/rp1/csi@128000: Fixed dependency cycle(s) with /axi/pcie@1000120000/rp1/i2c@80000/vd55g0@10
[    2.263483] /axi/pcie@1000120000/rp1/i2c@80000/vd55g0@10: Fixed dependency cycle(s) with /axi/pcie@1000120000/rp1/csi@128000
[    2.275063] /axi/pcie@1000120000/rp1/i2c@80000/vd55g0@10: Fixed dependency cycle(s) with /axi/pcie@1000120000/rp1/csi@128000
[    2.286350] /axi/pcie@1000120000/rp1/csi@128000: Fixed dependency cycle(s) with /axi/pcie@1000120000/rp1/i2c@80000/vd55g0@10
[    5.257501] /axi/pcie@1000120000/rp1/csi@128000: Fixed dependency cycle(s) with /axi/pcie@1000120000/rp1/i2c@80000/vd55g0@10
[    5.257526] /axi/pcie@1000120000/rp1/i2c@80000/vd55g0@10: Fixed dependency cycle(s) with /axi/pcie@1000120000/rp1/csi@128000
[    5.357883] rp1-cfe 1f00128000.csi: found subdevice /axi/pcie@1000120000/rp1/i2c@80000/vd55g0@10

Here is a photo of the physical setup, I think I have matched what is written in the Guide:

I know that the camera sensor and P-board are working (have already used it on a STM32N6-DK board), so this is very likely a software issue.

Any ideas what the problem could be, or how I could debug this?

Thanks a lot!

Michael