TL;DR; - my picams all suddenly stopped being detectable at once, even for new hardware. Does anyone know of an external "thing" (like a signal) that could interfere with a picam being detected by the RP?
So I have been working on a project for a while involving a Raspberry Pi 4 Model B and a Picamera module v2.1. Had no issues installing the camera initially several months ago and everything worked great since.
Recently I loaded up my program for the first time in a week, but the camera wasn't found.After some fiddling, I figured that the camera got broke and replaced it with a new out-of-the-box picamera2 that I had just got. Still nothing-- libcamera-hello couldn't find it. ("No cameras available!")
I figured that I bused the RP camera port somehow and turned to a second RP4 that was running the main branch of my code. After SSHing in, I was surprised to find out that the 2nd RP couldn't detect its camera either. This is completely separate hardware that I hadn't touched in a while, so this was really baffling. I did eventually do a apt update but not before my camera wasn't detected (when it had been previously.)
Power issue, I figured, and swapped out plugs and bypassed my USB hub to plug directly into the wall. Nothing. Removed everything from the boards EXCEPT the camera (there was a display running) and rebooted. "No cameras available!" on both.
Eventually I flashed a new SD card with the latest Raspbian Image, inserted it into a fresh, newly opened RP4 that I had just bought, added the new picamera2 and rebooted. No camera. (See pict below) This is the third device that wasn't able to find a camera.
So all 3 picamera2s and 3 RPs are not able to detect the camera and I am starting to wonder if someone is messing with me with a specialized EMP attack that only effects picamera2s, or if someone turned on a broadcasting device that somehow blocks my picameras? Does anyone know of an external thing that can block/break picamera2? Because its really odd that ALL my picameras would stop working with no code changes or updates. Anyone else ever see anything like this?
To sum up, I tried:
- install new camera on same board
- install new camera on new board with new Raspian image (tried 3 boards and 3 picams in total)
- try different power supplies
- reseat the camera
Need to try:
- test away from my home (will try to do this this afternoon) - I did try looking for the camera in various places in my house. I live in an apartment so I do have a ton of neighbors within wifi distance who could be running godknowswhat.
The only thing I haven't tried flipping the cable since everything that I am reading is indicating that the cable (below) is installed correctly.
note: I can send system info but with ALL my picams failing I am not thinking that this is a setup/OS issue. I have no idea what it is and really hoping someone knows what could be happening here.
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System info:
So I have been working on a project for a while involving a Raspberry Pi 4 Model B and a Picamera module v2.1. Had no issues installing the camera initially several months ago and everything worked great since.
Recently I loaded up my program for the first time in a week, but the camera wasn't found.
Code:
xxx@rp4:~ $ libcamera-hello[0:01:44.879363833] [1699] INFO Camera camera_manager.cpp:325 libcamera v0.3.2+99-1230f78dlibEGL warning: DRI3: failed to query the versionMade X/EGL preview windowERROR: *** no cameras available ***I figured that I bused the RP camera port somehow and turned to a second RP4 that was running the main branch of my code. After SSHing in, I was surprised to find out that the 2nd RP couldn't detect its camera either. This is completely separate hardware that I hadn't touched in a while, so this was really baffling. I did eventually do a apt update but not before my camera wasn't detected (when it had been previously.)
Power issue, I figured, and swapped out plugs and bypassed my USB hub to plug directly into the wall. Nothing. Removed everything from the boards EXCEPT the camera (there was a display running) and rebooted. "No cameras available!" on both.
Eventually I flashed a new SD card with the latest Raspbian Image, inserted it into a fresh, newly opened RP4 that I had just bought, added the new picamera2 and rebooted. No camera. (See pict below) This is the third device that wasn't able to find a camera.
So all 3 picamera2s and 3 RPs are not able to detect the camera and I am starting to wonder if someone is messing with me with a specialized EMP attack that only effects picamera2s, or if someone turned on a broadcasting device that somehow blocks my picameras? Does anyone know of an external thing that can block/break picamera2? Because its really odd that ALL my picameras would stop working with no code changes or updates. Anyone else ever see anything like this?
To sum up, I tried:
- install new camera on same board
- install new camera on new board with new Raspian image (tried 3 boards and 3 picams in total)
- try different power supplies
- reseat the camera
Need to try:
- test away from my home (will try to do this this afternoon) - I did try looking for the camera in various places in my house. I live in an apartment so I do have a ton of neighbors within wifi distance who could be running godknowswhat.
The only thing I haven't tried flipping the cable since everything that I am reading is indicating that the cable (below) is installed correctly.
note: I can send system info but with ALL my picams failing I am not thinking that this is a setup/OS issue. I have no idea what it is and really hoping someone knows what could be happening here.
System info:
Code:
username@rp4new:~ $ uname -aLinux rp4new 6.6.51+rpt-rpi-v8 #1 SMP PREEMPT Debian 1:6.6.51-1+rpt3 (2024-10-08) aarch64 GNU/Linuxusername@rp4new:~ $ cat /etc/os-releasePRETTY_NAME="Debian GNU/Linux 12 (bookworm)"NAME="Debian GNU/Linux"VERSION_ID="12"VERSION="12 (bookworm)"VERSION_CODENAME=bookwormID=debianHOME_URL="https://www.debian.org/"SUPPORT_URL="https://www.debian.org/support"BUG_REPORT_URL="https://bugs.debian.org/"username@rp4new:~ $ libcamera-hello --versionrpicam-apps build: v1.5.3 50958df98d3c 13-11-2024 (14:29:29)rpicam-apps capabilites: egl:1 qt:1 drm:1 libav:1libcamera build: v0.3.2+99-1230f78dusername@rp4new:~ $ apt list python3-picamera2Listing... Donepython3-picamera2/stable,stable,now 0.3.23-1 all [installed]Statistics: Posted by followkim — Wed Dec 11, 2024 5:25 pm