目前我在这里还没有Ubuntu，但这是它在Fedora上的工作方式，我确信它在Ubuntu上非常相似，尤其是systemd.-部分:

I have no Ubuntu here at the moment, but this is the way it works on Fedora and I'm sure it is very similar on Ubuntu, especially the systemd-part:

之后添加 -d 来

启用调试

enable debugging by adding a -d after

ExecStart=/usr/libexec/bluetooth/bluetoothd

在/usr/lib/systemd/system/bluetooth.service

保存，然后:

$ systemctl daemon-reload
$ systemctl restart bluetooth

现在您可以在/var/log/syslog