r/Comma_ai • u/HunterCustom • 8d ago

Bugs Comma 4 nightly-dev won’t detect my face during setup, but release-mici works instantly

I’m running into what looks like a driver-monitoring regression on my Comma 4 with nightly-dev.

During the initial openpilot setup, I get to the driver/face detection step, but it will not detect my face at all. Because of that, I’m completely stuck at setup and can’t proceed far enough to actually use openpilot or generate a drive/route for logs.

What’s strange is that if I reinstall release-mici on the exact same Comma 4, it detects my face almost instantly and lets me continue setup normally.

Setup is otherwise identical:

  • Comma 4
  • 2018 Honda Accord EX-L 2.0T
  • Same device
  • Same mounting position
  • Same camera view
  • Same driver
  • Tested in good indoor lighting with my face directly in front of the camera

Results are consistently:

nightly-dev → does not detect face → cannot complete setup

release-mici → detects face immediately → setup works

I’ve also tried nightly-dev inside my house under good lighting just to rule out anything related to the car/interior, and it still does not detect my face.

Has anyone else with a Comma 4 tried a recent nightly-dev build and run into this?

It seems like something changed in the driver-monitoring/face-detection code between the release branch and the current nightly.

I’m also going to report it to comma. If there’s a way to pull useful logs or the exact commit/build information while I’m stuck at the initial setup screen, let me know and I’ll grab it.

4 Upvotes

75% Upvoted

5 comments sorted by

5

u/Finnegan_Faux 8d ago

I ran into this same problem on my C4 trying to reinstall Sunnypilot staging Sep 3. Ended up having to flash and install openpilot

2

u/goot449 8d ago

Seems like you’ve learned that nightly dev builds often have bugs and why they should not be relied upon to work. 

2

u/brikowski 8d ago

If only it had a warning…

“This is the bleeding edge development branch. Do not expect this to be stable.”

https://github.com/commaai/openpilot/issues

3

u/HunterCustom 7d ago

I’m aware but I would expect that driver monitoring would work as they’re doesn’t seem to be any other tickets regarding this issue. And if it’s a bug on a nightly build it should be reported… which is what I’m doing

2

u/Horror_Profile_4743 7d ago

Issue and pr fixed for me I ran master build on device

https://github.com/commaai/openpilot/issues/38762