Troubleshooting • Bluetooth LE only loading HID device when paired in GUI

Hello all.

I'm running a Pi5 with the newest Bookworm OS and am running into an issue.
I'm creating a Bluetooth gamepad with an Arduino Nano ESP32. It's working just fine in MacOS. The issue is when i go over to my Pi5.

Here are the key points i have so far discovered.

• If i pair the device using bluetoothctl in the shell, it pairs and connects, but it doesn't load anythin input or hid related.

• If i pair the device using the GUI, it works great until i reboot, at which point it reverts back to the above behavior.

• udevadm monitor shows 2 entries when it doesn't work, 14 entries when it does. The first two entries of the happy path are identical to the failure case except for expected sequence and time values.

• debug level udev logs show similar to udevadm monitor; The happy path has all the entries of the failure and just has more after. No extra errors or branching behavior from what i can tell

Does anyone have any ideas on what's happening, or at least where i should look at next? What could be different in the way the GUI loads the device compared to when done through the shell?

Thanks!

Statistics: Posted by eklynx — Sun Aug 11, 2024 9:56 pm

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