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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 (20.04) 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).
** Affects: bluez (Ubuntu)
Importance: Undecided
Status: New
** Tags: bot-comment
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Bluetooth headphones media buttons no longer work
https://bugs.launchpad.net/bugs/1948877
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