Error on running

[fbuffa2003]

Hello. Thanks for your help. Im running fedora 36 and first time script run ok and second time is showing this error. Any ideas?

2022-08-18 13:07:56.926703: I tensorflow/core/util/util.cc:169] oneDNN custom operations are on. You may see slightly different numerical results due to floating-point round-off errors from different computation orders. To turn them off, set the environment variable TF_ENABLE_ONEDNN_OPTS=0.
2022-08-18 13:07:56.929525: W tensorflow/stream_executor/platform/default/dso_loader.cc:64] Could not load dynamic library 'libcudart.so.11.0'; dlerror: libcudart.so.11.0: cannot open shared object file: No such file or directory; LD_LIBRARY_PATH: /home/federicobuffa/.local/lib/python3.10/site-packages/cv2/../../lib64:
2022-08-18 13:07:56.929544: I tensorflow/stream_executor/cuda/cudart_stub.cc:29] Ignore above cudart dlerror if you do not have a GPU set up on your machine.
Traceback (most recent call last):
File "/home/federicobuffa/MS-Teams-background-changer/main.py", line 62, in
print ("set format result (0 is good):{}".format(fcntl.ioctl(device, v4l2.VIDIOC_S_FMT, format)))
OSError: [Errno 22] Invalid argument

[prabhakar-sivanesan]

Hi Buffa,
Can you run this command ls -1 /sys/devices/virtual/video4linux and let me know what is the results you are getting.

Thanks,
Prabhakar

[DRRDietrich]

I have the same issue.
At first it works. Then this issue appears without me having changed anything and it only works again after a reboot.

ls -1 /sys/devices/virtual/video4linux
video0