Bluetooth cannot be enabled on Ubuntu Touch rc-proposed Nexus 4

[Willem Ligtenberg]

After switching from OTA8.5 to rc-proposed (to test if my BT keyboard would work with that) BT cannot be turned on any more.
I can flip the switch, but after 30s it is switched off again (probably never turned on).
I am unable to discover any BT devices.

Running bluetoothctl on the devices from the terminal and then entering "show" results in:
"No default controller available"

I switched to rc-proposed for the Nexus 4 like this:
ubuntu-device-flash touch --channel=ubuntu-touch/rc-proposed/ubuntu

[Willem Ligtenberg (wligtenberg)]

After a reboot it seems to work.
awe_ mentioned there might be a race condition which he will test.

Now bluetoothctl gives uuids for audio sink etc.

OS build details:
build number: r331
image part: 20160105
build decription: Ubuntu 15.04 - armhf (20160105-020304)

[Tony Espy (awe)]

I just flashed my mako to the same image as Willem ( rc-proposed/331 ) and couldn't reproduce the problem. After a fresh flash, I rebooted the device multiple times with BT enabled, after each reboot, BT was still enabled. I rebooted ten times, and wasn't able to reproduce...

I also verified that toggling BT off and back on again works as expected.

A quick look at the syslog shows that the bluez5 version of bluetoothd was only started at 14:41:46 which appears to be after the final reboot mentioned in comment #2. The previous version of bluetoothd running on the phone was 4.101, which was started at 12:05:44.

@Willem, what time did you flash the device?

My guess is this may have been some kind of system update hiccup.

[Willem Ligtenberg (wligtenberg)]

Luckily, I still had my terminal with the flash process open.
I flashed it and it rebooted at 14:38:13.
So 14:41:46 is indeed after rebooting, the first time, after the switch to rc-proposed.
A later manual shutdown and start of the device resolved the issue. It might have been one of those things that happen only in very specific circumstances. I didn't update anything after switching to rc-proposed, I did check if there were any updates, but there were none. (which makes sense)

[Launchpad Janitor (janitor)]

[Expired for bluez (Ubuntu) because there has been no activity for 60 days.]