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Error when reading from camera at random #360

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Marwan-Ru opened this issue May 29, 2020 · 2 comments
Open

Error when reading from camera at random #360

Marwan-Ru opened this issue May 29, 2020 · 2 comments
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camera issue Problems with the IR camera

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@Marwan-Ru
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Marwan-Ru commented May 29, 2020 •
edited by boltgolt
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It seems that howdy randomly fails to read from my IR sensor
here is the error

[ WARN:0] global /io/opencv/modules/videoio/src/cap_v4l.cpp (998) tryIoctl VIDEOIO(V4L2:/dev/v4l/by-path/pci-0000:04:00.4-usb-0:1:1.0-video-index0): select() timeout.

Unknown camera, please check your 'device_path' config value.

Traceback (most recent call last):
  File "/lib/security/howdy/compare.py", line 193, in <module>
    gsframe = cv2.cvtColor(frame, cv2.COLOR_BGR2GRAY)
cv2.error: OpenCV(4.2.0) /io/opencv/modules/imgproc/src/color.cpp:182: error: (-215:Assertion failed) !_src.empty() in function 'cvtColor'

Unknown error: 1

It does work perfectly the rest of the time.

I've searched for similar issues already, and my issue has not been reported yet.

Linux distribution (if applicable): Ubuntu 20.04

Howdy version: 2.5.1
@boltgolt boltgolt added the camera issue Problems with the IR camera label Jun 21, 2020
@boltgolt
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Do you have any other applications open that also use the camera when Howdy fails?

@Marwan-Ru
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No it does it just after booting up on a fresh ubuntu install

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camera issue Problems with the IR camera
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@boltgolt @Marwan-Ru