Hello!I have a problem connecting Sennheiser Momentum True Wireless 2 headphones over Bluetooth. The headphones say "Connected" and then reboot immediately after. After reboot the headphones say "Power on" and try connecting again, and fail the same way, and so on.
From the Bluetooth packet dump it looks like the problem happens after bluetoothd sends AVRCP ListPlayerApplicationSettingAttributes message to the headphones. The headphones send Not Implemented response and then reboot. Both in the request and the response Wireshark shows warnings about encoding issues.
I'm attaching a packet dump captured from one of the connection attempts. The ListPlayerApplicationSettingAttributes message is in packet 262 and the response is in packet 264.
This is on Kubuntu 20.04. I tried bluez 5.53 from Kubuntu and revision 3146b7a0785758be2d4e894d44e99d29c0db983e from git master - the behavior is the same.
I've also verified that the headphones do work on Windows 10. On that system, ListPlayerApplicationSettingAttributes is not present in the packet exchange. I can provide the packet dump from Windows, if needed.
I hope this is the right place to report problems like this one. If not - sorry, and please point me to the right place.
Thank you.
Attachment:
mtw2_linux.pcapng
Description: application/pcapng
