I have got the same issue on 21.10.
Headphones: JBL LIVE 650BTNC
Bluetooth: Device-1: Intel Wireless-AC 3168 Bluetooth type: USB driver: btusb
v: 0.8 bus-ID: 1-9:6 chip-ID: 8087:0aa7
class-ID: e001
Report: hciconfig ID: hci0 rfk-id: 0 state: up address: <filter>
bt-v: 2.1 lmp-v: 4.2 sub-v: 1100 hci-v: 4.2
rev: 1100
Info: acl-mtu: 1021:4 sco-mtu: 96:6 link-policy: rswitch sniff
link-mode: slave accept
service-classes: rendering, capturing, object transfer, audio,
telephony
Again it was working fine on 21.04 and 20.10
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https://bugs.launchpad.net/bugs/1948877
Title:
Bluetooth headphones media buttons no longer work
Status in bluez package in Ubuntu:
Confirmed
Bug description:
In KUbuntu 21.10, most media buttons in my bluetooth headphones
stopped working. This includes the "play/pause" button, "play next"
(calls after long press of volume increase), and "play previous" (long
press of volume decrease). The volume +/- buttons themselves are
working, but this seemingly is implemented entirely in the headphones
and does not require any communication over bluetooth.
In previous ubuntu (21.04) these buttons worked, and I expect them
working.
My headset is Qumo Accord 3.
Here is output of "inxi -Eaz" in terminal:
Bluetooth: Device-1: Realtek Bluetooth Radio type: USB driver: btusb v: 0.8
bus-ID: 1-7:3 chip-ID: 0bda:b008 class-ID: e001
serial: <filter>
Report: hciconfig ID: hci0 rfk-id: 1 state: up address: <filter>
bt-v: 2.1 lmp-v: 4.0 sub-v: 9f73 hci-v: 4.0
rev: e2f
Info: acl-mtu: 820:8 sco-mtu: 255:16 link-policy: rswitch hold
sniff park link-mode: slave accept
service-classes: rendering, capturing, object transfer, audio,
telephony
Some possible workarounds that I found suggest to "modprobe uinput",
but the uinput module does not get loaded (lsmod does not list it even
after modprobe'ing).
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https://bugs.launchpad.net/ubuntu/+source/bluez/+bug/1948877/+subscriptions
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