From: bugzilla-daemon@kernel.org
To: linux-bluetooth@vger.kernel.org
Subject: [Bug 222250] New: v7.4-rc2: Bluetooth: hci0: Opcode 0x041a failed:
 -22
Date: Mon, 09 Nov 2026 10:53:12 +0000
Message-ID: <bug-222250-62941@https.bugzilla.kernel.org/>
Content-Type: text/plain; charset="UTF-8"
Content-Transfer-Encoding: quoted-printable
Auto-Submitted: auto-generated
Precedence: list
MIME-Version: 1.0

https://bugzilla.kernel.org/show_bug.cgi?id=3D222250

            Bug ID: 222250
           Summary: v7.4-rc2: Bluetooth: hci0: Opcode 0x041a failed: -22
           Product: Drivers
           Version: 2.5
    Kernel Version: v7.4-rc2
          Hardware: AMD
                OS: Linux
            Status: NEW
          Severity: normal
          Priority: P3
         Component: Bluetooth
          Assignee: linux-bluetooth@vger.kernel.org
          Reporter: frc.gabriel@gmail.com
        Regression: Yes

Hi, good morning,


I just booted v7.4-rc2 and noticed that bluetooth no longer connects to pai=
red
headphones. Removing + trying to repair doesn't work either.


Dmesg shows:


root@localhost:~# journalctl -b -1 | grep -i "Opcode 0x041a failed:" -A2 -B=
100
| grep -i "kernel\|bluetooth"
Nov 09 09:50:45 localhost kernel: Bluetooth: hci0: Loading BT firmware:
mediatek/mt7925/BT_RAM_CODE_MT7925_1_1_hdr.bin
Nov 09 09:50:45 localhost kernel: Bluetooth: hci0: BT HW ver: 0x7925, SW ve=
r:
0x0000, Build Time: 20260813113236
Nov 09 09:50:46 localhost kernel: Bluetooth: hci0: Device setup in 349484 u=
secs
Nov 09 09:50:46 localhost kernel: Bluetooth: hci0: HCI Enhanced Setup
Synchronous Connection command is advertised, but not supported.
Nov 09 09:50:54 localhost bluetoothd[7697]: src/service.c:btd_service_conne=
ct()
a2dp-sink profile connect failed for XX:XX:XX:XX:XX:XX: Protocol not availa=
ble
Nov 09 09:51:57 localhost bluetoothd[7697]: src/service.c:btd_service_conne=
ct()
a2dp-sink profile connect failed for XX:XX:XX:XX:XX:XX:: Protocol not avail=
able
Nov 09 09:51:58 localhost bluetoothd[7697]: src/service.c:btd_service_conne=
ct()
a2dp-sink profile connect failed for XX:XX:XX:XX:XX:XX:: Protocol not avail=
able
Nov 09 09:51:58 localhost bluetoothd[7697]: src/service.c:btd_service_conne=
ct()
a2dp-sink profile connect failed for XX:XX:XX:XX:XX:XX:: Protocol not avail=
able
Nov 09 09:51:59 localhost bluetoothd[7697]: src/service.c:btd_service_conne=
ct()
a2dp-sink profile connect failed for XX:XX:XX:XX:XX:XX:: Protocol not avail=
able
Nov 09 09:51:59 localhost bluetoothd[7697]: src/service.c:btd_service_conne=
ct()
a2dp-sink profile connect failed for XX:XX:XX:XX:XX:XX:: Protocol not avail=
able
Nov 09 09:52:00 localhost bluetoothd[7697]: src/service.c:btd_service_conne=
ct()
a2dp-sink profile connect failed for XX:XX:XX:XX:XX:XX:: Protocol not avail=
able
Nov 09 09:52:00 localhost bluetoothd[7697]: src/service.c:btd_service_conne=
ct()
a2dp-sink profile connect failed for XX:XX:XX:XX:XX:XX:: Protocol not avail=
able
Nov 09 09:52:02 localhost kernel: Bluetooth: hci0: Opcode 0x041a failed: -22
Nov 09 09:52:07 localhost bluetoothd[7697]: src/service.c:btd_service_conne=
ct()
a2dp-sink profile connect failed for XX:XX:XX:XX:XX:XX:: Protocol not avail=
able
Nov 09 09:52:07 localhost kernel: Bluetooth: hci0: Opcode 0x041a failed: -22


It works OK with v7.4-rc1.

Greetings,
Gabriel Francisco

--=20
You may reply to this email to add a comment.

You are receiving this mail because:
You are the assignee for the bug.=