3

I followed a guide on youtube to set up my raspberry pi. I'm trying to use python for facial recognition but the camera is not working.

I did

vcgencmd get_camera

in the terminal but the result was

supported=0 detected=0

Does anyone have any idea why supported shows 0?

12
  • maybe the camera is not supported ... or it is not connected ... or it is defective ... or etc. etc.
    – jsotola
    Nov 25, 2021 at 7:01
  • 1
    supported=0 means you haven't enabled camera at all - note: you hopefully are running buster, not bullseye
    – Bravo
    Nov 25, 2021 at 8:27
  • 1
    lsb_release -a - go back to buster by downloading and flash buster image
    – Bravo
    Nov 29, 2021 at 2:16
  • 1
    let me make that clearer ... buster lite - no GUI and buster regular - with GUI - as far as flashing the image - what did you use this time
    – Bravo
    Nov 29, 2021 at 2:34
  • 1
    @jwbradley - i wouldn't be so quick to trust a year old comment :p
    – Bravo
    Dec 16, 2022 at 3:02

4 Answers 4

2

If you are using the new Raspberry Pi OS, the camera interface is disabled. The workaround is to open a terminal Ctrl+Alt+t and type sudo raspi-config, go to Interface Options and then Legacy Camera and reboot. These camera interfaces are deprecated and will not be supported going forwards. So use with caution and check for updates.

1

Using the latest Raspberry Pi OS, bookworm, my Pi Zero W v1.1 reports the camera is missing with the following:

~ $ vcgencmd get_camera
supported=0 detected=0, libcamera interfaces=0

However, I can see it is connected by running:

~ $ libcamera-still --list-cameras
Available cameras
-----------------
0 : ov5647 [2592x1944 10-bit GBRG] (/base/soc/i2c0mux/i2c@1/ov5647@36)
    Modes: 'SGBRG10_CSI2P' : 640x480 [58.92 fps - (16, 0)/2560x1920 crop]
                             1296x972 [43.25 fps - (0, 0)/2592x1944 crop]
                             1920x1080 [30.62 fps - (348, 434)/1928x1080 crop]
                             2592x1944 [15.63 fps - (0, 0)/2592x1944 crop]

And I can take pictures without issue:

libcamera-still -o snap.jpg
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  • So, apparently, the camera is already enabled by default if using libcamera when using the latest Raspberry Pi OS (bookworm). The legacy camera is disabled and won't show up in raspi-config anymore. Following the commands you posted confirms that the camera is indeed working and accessible. 2 days ago
0
  1. Check first if the camera is supported

2. Try a powered USB hub to plug in the camera / maybe it isnt getting enough power

Then you can install this tool to test out the camerasudo apt-get install luvcview

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  • 1
    its a raspberry pi camera that came with the raspberry pi itself
    – suinuj
    Nov 29, 2021 at 1:37
  • what makes you think this is a USB camera?
    – Bravo
    Nov 29, 2021 at 2:32
0

I used the libcamera-still command and it worked in the morning Then i installed dlib After that the same command showed the error "no cameras available" I could access camera through raspcontroller...but not through camera legacy. I could access it through camera (usb) Then i tried sudo apt-get install fswebcam fswebcam image.jpg ...and bingo ! It worked.

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