Bluetooth state reverts to last full shutdown on every reboot

[Michael Zanetti]

Each reboot restores the state when the device was last shut down (not rebooted).

* Turn Bluetooth on
* shut down the device
* turn device back on
* now turn Bluetooth off
* reboot the device
=> Bluetooth is back on
expected: Bluetooth is off

or:

* Turn Bluetooth off
* shut down the device
* turn device back on
* now turn Bluetooth on
* reboot the device
=> Bluetooth is off
expected: Bluetooth is on

$ system-image-cli -i
current build number: 343
device name: krillin
channel: ubuntu-touch/rc-proposed/ubuntu
last update: 2015-12-01 15:58:38
version version: 343
version ubuntu: 20151201
version device: 20151028-869191d
version custom: 20151201

phablet@ubuntu-phablet:~$ rfkill list
0: hci0: Bluetooth
        Soft blocked: yes
        Hard blocked: no
1: phy0: Wireless LAN
        Soft blocked: no
        Hard blocked: no

phablet@ubuntu-phablet:~$ bluetoothctl
[NEW] Controller B8:64:91:48:2A:AA Aquaris E4.5 Ubuntu Edition [default]
[NEW] Device 90:03:B7:B9:F0:68 BMW 26911
[NEW] Device B0:B4:48:89:26:F5 Pebble Time 26F5
[bluetooth]# show
Controller B8:64:91:48:2A:AA
        Name: Aquaris E4.5 Ubuntu Edition
        Alias: Aquaris E4.5 Ubuntu Edition
        Class: 0x000000
        Powered: no
        Discoverable: no
        Pairable: yes
        UUIDs:
          Headset AG (00001112-0000-1000-8000-00805f9b34fb)
          Generic Attribute Profile (00001801-0000-1000-8000-00805f9b34fb)
          A/V Remote Control (0000110e-0000-1000-8000-00805f9b34fb)
          SIM Access (0000112d-0000-1000-8000-00805f9b34fb)
          Generic Access Profile (00001800-0000-1000-8000-00805f9b34fb)
          PnP Information (00001200-0000-1000-8000-00805f9b34fb)
          A/V Remote Control Target (0000110c-0000-1000-8000-00805f9b34fb)
          Audio Source (0000110a-0000-1000-8000-00805f9b34fb)
          Audio Sink (0000110b-0000-1000-8000-00805f9b34fb)
          Handsfree Audio Gateway (0000111f-0000-1000-8000-00805f9b34fb)
          Message Notification Se.. (00001133-0000-1000-8000-00805f9b34fb)
          Phonebook Access Server (0000112f-0000-1000-8000-00805f9b34fb)
        Modalias: usb:v1D6Bp0246d0523
        Discovering: no

[Michael Zanetti (mzanetti)]

Some logs as requested by Simon Fels:

I did turn Bluetooth on. Then rebooted. Bluetooth was off. I waited for a couple of minutes then turned bluetooth on manually through the indicator.

syslog: http://paste.ubuntu.com/13621752/
rfkill saved-states: http://paste.ubuntu.com/13621760/
rfkill list: http://paste.ubuntu.com/13621765/

[Simon Fels (morphis)]

I went through the logs and it looks like urfkill is not persisting the change rfkill state for Bluetooth.

[Michael Zanetti (mzanetti)]

Found some more info:

The behavior seems to be that each reboot restores the state when the device was last shut down (not rebooted). More complete steps how to reproduce:

* Turn Bluetooth on
* shut down the device
* turn device back on
* now turn Bluetooth off
* reboot the device
=> Bluetooth is back on
expected: Bluetooth is off

or:

* Turn Bluetooth off
* shut down the device
* turn device back on
* now turn Bluetooth on
* reboot the device
=> Bluetooth is off
expected: Bluetooth is on

[Pat McGowan (pat-mcgowan)]

Wit the steps in comment #3, the first time it worked properly, the second time it did not. Possibly a race on suspend.

[knut (mr-knut)]

On my system the state of bluetooth is always on after reboot. The previous state is not restored.

dpkg:
rfkill 0.5-1ubuntu3
systemd 229-4ubuntu17

Then, I noticed in dmesg log:
upstart: rfkill-restore main process (972) terminated with status 1

call systemd-rfkill like in /etc/init/rfkill-restore.conf:

/lib/systemd/systemd-rfkill load rfkill1
This program requires no arguments.

I think the rfkill-restore.conf and rfkill-store.conf have to be updated to the command line syntax of systemd-rfkill.