[Bug 2081384] Re: bluetooth headphones need reconnect after every reboot

I have the same issue with a Sennheiser Accentum headset since upgrading
to Kubuntu 24.10 from 24.04.

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Title:
bluetooth headphones need reconnect after every reboot

Status in bluez package in Ubuntu:
Confirmed
Status in linux package in Ubuntu:
Confirmed
Status in bluez source package in Oracular:
Confirmed
Status in linux source package in Oracular:
Confirmed

Bug description:
This issue seems to be caused by a recent package update in oracular.
Every time I reboot my desktop my bluetooth headset will fail to
connect until I manually go through forget device -> new pairing.

journalctl says:

23:13:44 desktop bluetoothd[3274]: src/profile.c:ext_connect() Hands-Free Voice gateway failed connect to 80:C3:33:59:89:D6: Connection refused (111)
23:13:45 desktop bluetoothd[3274]: profiles/audio/avdtp.c:avdtp_connect_cb() connect to 80:C3:33:59:89:D6: Connection refused (111)
23:13:47 desktop bluetoothd[3274]: profiles/audio/avdtp.c:avdtp_connect_cb() connect to 80:C3:33:59:89:D6: Connection refused (111)
23:13:59 desktop bluetoothd[3274]: src/profile.c:ext_connect() Hands-Free Voice gateway failed connect to 80:C3:33:59:89:D6: Connection refused (111)
23:13:59 desktop bluetoothd[3274]: profiles/audio/avdtp.c:avdtp_connect_cb() connect to 80:C3:33:59:89:D6: Connection refused (111)
23:14:00 desktop bluetoothd[3274]: No matching connection for device
23:14:04 desktop bluetoothd[3274]: src/profile.c:record_cb() Unable to get Hands-Free Voice gateway SDP record: Operation already in progress
23:14:04 desktop bluetoothd[3274]: profiles/audio/avdtp.c:avdtp_connect_cb() connect to 80:C3:33:59:89:D6: Connection refused (111)
23:14:25 desktop bluetoothd[3274]: src/profile.c:ext_connect() Hands-Free Voice gateway failed connect to 80:C3:33:59:89:D6: Connection refused (111)
23:14:25 desktop bluetoothd[3274]: profiles/audio/avdtp.c:avdtp_connect_cb() connect to 80:C3:33:59:89:D6: Connection refused (111)
23:14:27 desktop bluetoothd[3274]: profiles/audio/avdtp.c:avdtp_connect_cb() connect to 80:C3:33:59:89:D6: Connection refused (111)
23:15:46 desktop bluetoothd[3274]: /org/bluez/hci0/dev_80_C3_33_59_89_D6/sep7/fd0: fd(43) ready

In dmesg I see lots of:
[44738.102583] Bluetooth: hci0: ACL packet for unknown connection handle 3837
[44749.325565] Bluetooth: hci0: ACL packet for unknown connection handle 3837
[44749.496566] Bluetooth: hci0: ACL packet for unknown connection handle 3837

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