Debian Samsung Notebook 9 Pro

[TritonSr]

Hey, I'm right now not a big programmer and I'm running Debian on my Samsung but Howdy keeps spitting out an error I don't really understand and therefore don't know how to deal with. All of my troubleshooting ideas have failed so far and I'll keep trying but I wanted to see if anyone else in the community had the same problem. The problem arises when I try to add a face model. This computer has 2 cameras and 2 IR scanners and I think they pathed automatically but I'm not sure.

Here is the error message:

Enter a label for this new model [Initial model] (max 24 characters): Ben
select timeout
VIDIOC_DQBUF: Resource temporarily unavailable

Please look straight into the camera
VIDIOC_QBUF: Invalid argument
Traceback (most recent call last):
  File "/usr/local/bin/howdy", line 89, in <module>
    import cli.add
  File "/lib/security/howdy/cli/add.py", line 147, in <module>
    gsframe = cv2.cvtColor(frame, cv2.COLOR_BGR2GRAY)
cv2.error: OpenCV(4.1.0) /io/opencv/modules/imgproc/src/color.cpp:182: error: (-215:Assertion failed) !_src.empty() in function 'cvtColor'

If there is any other information that would be helpful, please let me know.

Thanks so much for the help!

---

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

Linux distribution (if applicable): Debian

Howdy version: 2.5.1

[edsadr]

I have the same issue in a Razer Blade Stealth 13" using Ubuntu 19.04

Adding face model for the user edsadr
Enter a label for this new model [Initial model] (max 24 characters): 
select timeout
VIDIOC_DQBUF: Resource temporarily unavailable

Please look straight into the camera
VIDIOC_QBUF: Invalid argument
Traceback (most recent call last):
  File "/usr/local/bin/howdy", line 89, in <module>
    import cli.add
  File "/usr/lib/security/howdy/cli/add.py", line 147, in <module>
    gsframe = cv2.cvtColor(frame, cv2.COLOR_BGR2GRAY)
cv2.error: OpenCV(4.1.0) /io/opencv/modules/imgproc/src/color.cpp:182: error: (-215:Assertion failed) !_src.empty() in function 'cvtColor'

[boltgolt]

"Resource temporarily unavailable" could be an USB error, does the camera work in other programs (such as Cheese)?

[edsadr]

yes it works in Cheese and other apps like Zoom, Slack and Google Hangouts

[edsadr]

also, when trying to create the model you can see the camera and the infrared working for I would say 10 seconds then it shows the errors described at the top, any way to debug this to provide more insight @boltgolt ?

[edsadr]

ok fixed this, was a config issue I have these devices:

ls /dev/v4l/by-path/
pci-0000:00:14.0-usb-0:6:1.0-video-index0  pci-0000:00:14.0-usb-0:6:1.0-video-index1  pci-0000:00:14.0-usb-0:6:1.2-video-index0  pci-0000:00:14.0-usb-0:6:1.2-video-index1

Config was pointing to pci-0000:00:14.0-usb-0:6:1.2-video-index0 and I changed to pci-0000:00:14.0-usb-0:6:1.0-video-index0, then ran the test and now it works like a charm

[edsadr]

the thing is that the infrared doesn't turn on, so it requires light to work when it starts turning a bit dark then it stops identifying my face

[boltgolt]

@edsadr there are some developments for laptops with IR blasters that don't turn on, check out #269

@karanjot21 that's a completely different (and fixed) issue, see #88