[Pkg-bluetooth-maintainers] Bug#861784: Additional information

[Prashant L Rao]

Hi,

It appears that this was triggered off on account of my having another
bluetooth device (logitech bluetooth audio adapter) connected while the
laptop went down for hibernate. On resume, the adapter wasn't plugged in
and this seems to have confused bluetoothd which spammed the syslog for
several minutes with messages like below:
May  4 03:49:41 prash-PC kernel: [13038.699382] Bluetooth: hci0 SCO packet
for unknown connection handle 0
May  4 03:49:41 prash-PC kernel: [13038.699395] Bluetooth: hci0 SCO packet
for unknown connection handle 0
May  4 03:49:41 prash-PC kernel: [13038.699397] Bluetooth: hci0 SCO packet
for unknown connection handle 0
May  4 03:49:41 prash-PC kernel: [13038.699399] Bluetooth: hci0 SCO packet
for unknown connection handle 0
May  4 03:49:41 prash-PC kernel: [13038.699400] Bluetooth: hci0 SCO packet
for unknown connection handle 0

Since user documentation on bluetoothd/bluez is nonexistent, my solution to
this has been to create a  script that restarts the bluetooth service on
resume from sleep/hibernate which I've put in /lib/systemd/system-sleep.
This seems to have fixed the issue of bluetoothd not being aware of
hibernate/resume (as far as I can make out).

Regards

Prashant L Rao
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