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picamera.exc.PiCameraMMALError: Failed to create MMAL component b'vc.camera_info': Function not implemented
See original GitHub issueI have picamera 1.13 installed. I had a perfectly working webcam script running until I did an apt-get upgrade today. That upgraded did this:
Get:1 http://archive.raspberrypi.org/debian bullseye/main armhf libc6-dbg armhf 2.31-13+rpt2+rpi1 [6377 kB]
Get:2 http://archive.raspberrypi.org/debian bullseye/main armhf libc-devtools armhf 2.31-13+rpt2+rpi1 [245 kB]
Get:3 http://archive.raspberrypi.org/debian bullseye/main armhf libc6-dev armhf 2.31-13+rpt2+rpi1 [1813 kB]
Get:4 http://archive.raspberrypi.org/debian bullseye/main armhf libc-dev-bin armhf 2.31-13+rpt2+rpi1 [266 kB]
Get:5 http://archive.raspberrypi.org/debian bullseye/main armhf libc6 armhf 2.31-13+rpt2+rpi1 [2297 kB]
Get:6 http://archive.raspberrypi.org/debian bullseye/main armhf libc-bin armhf 2.31-13+rpt2+rpi1 [682 kB]
Get:7 http://archive.raspberrypi.org/debian bullseye/main armhf bluez armhf 5.55-3.1+rpt1 [843 kB]
Get:8 http://archive.raspberrypi.org/debian bullseye/main armhf libc-l10n all 2.31-13+rpt2+rpi1 [863 kB]
Get:9 http://archive.raspberrypi.org/debian bullseye/main armhf locales all 2.31-13+rpt2+rpi1 [4084 kB]
Get:10 http://archive.raspberrypi.org/debian bullseye/main armhf libraspberrypi-dev armhf 1:2+git20210719~113532+97bc818-3 [180 kB]
Get:11 http://archive.raspberrypi.org/debian bullseye/main armhf libraspberrypi-doc all 1:2+git20210719~113532+97bc818-3 [1564 B]
Get:12 http://archive.raspberrypi.org/debian bullseye/main armhf libraspberrypi-bin armhf 1:2+git20210719~113532+97bc818-3 [40.8 kB]
Get:13 http://archive.raspberrypi.org/debian bullseye/main armhf libraspberrypi0 armhf 1:2+git20210719~113532+97bc818-3 [177 kB]
After rebooting, now the script does this:
mmal: mmal_component_create_core: could not find component 'vc.camera_info'
Traceback (most recent call last):
File "/home/nsayer/./cam.py", line 85, in <module>
with picamera.PiCamera(resolution='1600x1200', framerate=24) as camera:
File "/usr/lib/python3/dist-packages/picamera/camera.py", line 367, in __init__
with mo.MMALCameraInfo() as camera_info:
File "/usr/lib/python3/dist-packages/picamera/mmalobj.py", line 2346, in __init__
super(MMALCameraInfo, self).__init__()
File "/usr/lib/python3/dist-packages/picamera/mmalobj.py", line 631, in __init__
mmal_check(
File "/usr/lib/python3/dist-packages/picamera/exc.py", line 184, in mmal_check
raise PiCameraMMALError(status, prefix)
picamera.exc.PiCameraMMALError: Failed to create MMAL component b'vc.camera_info': Function not implemented
TO REITERATE: NOTHING changed other than the package upgrades noted above.
Issue Analytics
- State:
- Created 2 years ago
- Comments:11
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The workaround is to fetch these packages and downgrade to them:
libraspberrypi0_1.20210831-1_armhf.deb libraspberrypi-bin_1.20210831-1_armhf.deb libraspberrypi-dev_1.20210831-1_armhf.deb libraspberrypi-doc_1.20210831-1_armhf.deb raspberrypi-bootloader_1.20210831-1_armhf.deb
https://github.com/waveform80/picamera/issues/697#issuecomment-967601795
Picamera works fine on Pi4 32bit userland, which the Pi4 runs quite happily. With Raspberry Pi OS Bullseye release you will need to enable the legacy camera stack.