I'm trying to connect Sony WH-CH510 to Ubuntu 22.04.
Pairing works OK,
but connecting never resolves - I get a "Connected" message, but after a minute it disconnects again, and the headphones never show up in pulseaudio output.

Error messages vary, including

bluetoothd src/device.c:search_cb() error updating services: Input/output error



unexpected start frame



ServicesResolved: no

Especially puzzling is that everything works fine on a different computer, also running Ubuntu 22.04.

Here's some info. Let me know what else would be helpful.

$ sudo service bluetooth status

● bluetooth.service - Bluetooth service

     Loaded: loaded (/lib/systemd/system/bluetooth.service; enabled; vendor preset: enabled)

     Active: active (running) since Sat 2022-07-30 14:01:06 EDT; 1s ago

       Docs: man:bluetoothd(8)

   Main PID: 188402 (bluetoothd)

     Status: "Running"

      Tasks: 1 (limit: 38277)

     Memory: 812.0K

        CPU: 53ms

     CGroup: /system.slice/bluetooth.service

             └─188402 /usr/lib/bluetooth/bluetoothd



Jul 30 14:01:06 BL-CITO-8BL5JL2 bluetoothd[188402]: Endpoint registered: sender=:1.347 path=/MediaEndpoint/A2DPSink/aptx

Jul 30 14:01:06 BL-CITO-8BL5JL2 bluetoothd[188402]: Endpoint registered: sender=:1.347 path=/MediaEndpoint/A2DPSource/aptx

Jul 30 14:01:06 BL-CITO-8BL5JL2 bluetoothd[188402]: Endpoint registered: sender=:1.347 path=/MediaEndpoint/A2DPSink/sbc

Jul 30 14:01:06 BL-CITO-8BL5JL2 bluetoothd[188402]: Endpoint registered: sender=:1.347 path=/MediaEndpoint/A2DPSource/sbc

Jul 30 14:01:06 BL-CITO-8BL5JL2 bluetoothd[188402]: Endpoint registered: sender=:1.347 path=/MediaEndpoint/A2DPSink/sbc_xq_453

Jul 30 14:01:06 BL-CITO-8BL5JL2 bluetoothd[188402]: Endpoint registered: sender=:1.347 path=/MediaEndpoint/A2DPSource/sbc_xq_453

Jul 30 14:01:06 BL-CITO-8BL5JL2 bluetoothd[188402]: Endpoint registered: sender=:1.347 path=/MediaEndpoint/A2DPSink/sbc_xq_512

Jul 30 14:01:06 BL-CITO-8BL5JL2 bluetoothd[188402]: Endpoint registered: sender=:1.347 path=/MediaEndpoint/A2DPSource/sbc_xq_512

Jul 30 14:01:06 BL-CITO-8BL5JL2 bluetoothd[188402]: Endpoint registered: sender=:1.347 path=/MediaEndpoint/A2DPSink/sbc_xq_552

Jul 30 14:01:06 BL-CITO-8BL5JL2 bluetoothd[188402]: Endpoint registered: sender=:1.347 path=/MediaEndpoint/A2DPSource/sbc_xq_552



$ pactl list | grep blue

Name: module-bluetooth-policy

    module.description = "Policy module to make using bluetooth devices out-of-the-box easier"

Name: module-bluetooth-discover

Name: module-bluez5-discover

Could this be a hardware conflict of some kind?

Edit 1: The pulseaudio-module-bluetooth is already installed:

$ sudo apt-get install pulseaudio-module-bluetooth

Reading package lists... Done

Building dependency tree... Done

Reading state information... Done

pulseaudio-module-bluetooth is already the newest version (1:15.99.1+dfsg1-1ubuntu1).

0 upgraded, 0 newly installed, 0 to remove and 0 not upgraded.

Another error message from journalctl:

bluetoothd[188402]: src/device.c:search_cb() 74:45:CE:1A:C6:2E: error updating services: Input/output error (5)

Edit 2:

lspci -knn | grep Net -A3; lsusb

Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub

Bus 001 Device 016: ID 0a12:0001 Cambridge Silicon Radio, Ltd Bluetooth Dongle (HCI mode)

Bus 001 Device 003: ID 413c:2113 Dell Computer Corp. KB216 Wired Keyboard

Bus 001 Device 018: ID 04e8:6860 Samsung Electronics Co., Ltd Galaxy A5 (MTP)

Bus 001 Device 002: ID 046d:c52b Logitech, Inc. Unifying Receiver

Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub

Is Cambridge Silicon Radio unreliable?