Bluetooth stopped working

[Daniel]

After updating from 22.04 to 22.10 my bluetooth stopped working. My head phones (Sony WH-CH710N) do not connect anymore, and trying to pair them again doesn't work as my computer can't see any devices. I updated using sudo do-release-upgrade -m desktop in Konsole.

During boot I'm getting a series of new messages, of which at least a few seem to be related to this problem.

[ 2.764715] Blacklist: Problem blacklisting hash (-13)
[ 2.764784] Blacklist: Problem blacklisting hash (-13)
[ 2.764832] Blacklist: Problem blacklisting hash (-13)
[ 2.764860] Blacklist: Problem blacklisting hash (-13)
[ 8.884923] Bluetooth: hciO: Firmware loading failed
[ 8.885940] Bluetooth: hciO: MSFT supported features length mismatch

Any idea how to fix this?

Update 24 Oct: When starting my computer today the bluetooth is working again. No idea what is different now but the problem seems to have fixed itself.

[jlittle]

On 22.04... some update broke my headphone connection in the last month or so; bluetooth settings was showing "br-connection-unkown" on attempts to connect. My bluetooth mouse had no problems.

I tried a few things from the arch and manjaro forums, but they didn't work. On Ask Ubuntu someone suggested the generic

$ bluetoothctl
scan on
​remove XX:XX:XX:XX:XX:XX
trust XX:XX:XX:XX:XX:XX
pair XX:XX:XX:XX:XX:XX
connect XX:XX:XX:XX:XX:XX

(XX:XX:XX:XX:XX:XX is the headphones "address"
while the headphones were in pairing mode, and it worked, though it didn't for the OP there.

[jlittle]

I'll start a new thread for this, my headset problem is now different.