The Cell Broadcast story

lduboeuf

@kristatos said in The Cell Broadcast story:

@lduboeuf Hi, there is nothing on the OTA-24 page related to CB. Is there something we can do to help landing this in the next OTA (if it's not already to late)? I think we won't see OTA-25 before December or even this year. I think it would be good to test it under real conditions.

Hi,
No, this will not be for OTA-24 unfortunately. Already too many things in this OTA.
Hope the team can review my work soon after.

lduboeuf

@kristatos Even if CellBroadcast didn't get into an OTA, the feature is testable if you are in devel channel: (see test section )

https://github.com/ubports/ubuntu-touch/issues/2003

kristatos

@lduboeuf Ok, then maybe I'll test with my E4.5, the Volla is my daily

kristatos

@lduboeuf Hi, when I understand it correctly in the last QA, CB is also testable without being on devel channel. Is that correct? Is the test procedure in your link still up-to-date? If not, can you please make an instruction how to enable CB and which log-files you are interested in? I think it's easier for everybody who wants to help in testing/providing log-files on 08 December in Germany.

lduboeuf

@kristatos said in The Cell Broadcast story:

@lduboeuf Hi, when I understand it correctly in the last QA, CB is also testable without being on devel channel. Is that correct? Is the test procedure in your link still up-to-date? If not, can you please make an instruction how to enable CB and which log-files you are interested in? I think it's easier for everybody who wants to help in testing/providing log-files on 08 December in Germany.

Cell Broadcast should be testable when on RC too, but i need to make sure before if any update needs to be done. After OTA-24 is published, i will check again and publish here the test procedure

lduboeuf

Hello all,

The test procedure is written here ( see "Test" section) : https://github.com/ubports/ubuntu-touch/issues/2003 ~~and only supported on Xenial~~.
Note that a Focal test is available too

kristatos

@lduboeuf Hi, today I switched my E4.5 to RC and followed the instructions from your test procedure (install three PR for legacy devices and set the CB-properties). The PR's seems to be installed, but when I want to subscribe to the CB-channels an error occured:

lduboeuf

@kristatos said in The Cell Broadcast story:

@lduboeuf Hi, today I switched my E4.5 to RC and followed the instructions from your test procedure (install three PR for legacy devices and set the CB-properties). The PR's seems to be installed, but when I want to subscribe to the CB-channels an error occured:

Just in case, do you have an active SIM in your phone ?

kristatos

@lduboeuf Yes I have switched my SIM from my Volla into the E4.5 and I can make calls with it.

lduboeuf

@kristatos said in The Cell Broadcast story:

@lduboeuf Yes I have switched my SIM from my Volla into the E4.5 and I can make calls with it.

humm , if you updated ofono as in the procedure and rebooted, it should be good.
What does running /usr/share/ofono/scripts/list-modems outputs ?

you should see something like
[ril_0]
Interfaces = .... org.ofono.CellBroadcast

you could also have a [ril_1] section if you inserted your sim card in the 2nd slot. In that case please adapt the subscribtion command with /ril_1

kristatos

@lduboeuf said in The Cell Broadcast story:

Interfaces = .... org.ofono.CellBroadcast

No, not for ril_0 nor for ril_1

Could it be that the patch wasn't applied successfully because there were no SIM-crads inside the device at this time?

lduboeuf

@kristatos said in The Cell Broadcast story:

@lduboeuf said in The Cell Broadcast story:

Interfaces = .... org.ofono.CellBroadcast

No, not for ril_0 nor for ril_1

Could it be that the patch wasn't applied successfully because there were no SIM-crads inside the device at this time?

No it should be fine without.
To be sure what is the result of
dpkg -l | grep ofono

lduboeuf

@kristatos Just tested on my BQ4.5 and i have the same issue...

Will have a look tomorrow, but i doubt we are going to investigate hours on a device that will not be Focal ready.
Can't you test on your Volla 22 ? ( note that you can reinstall UT on it after all patches without issues )

That is weird because i have tested on BQ4.5 before as well on Nexus5, XperiaX and Pixel3a. And the BQ is the only one not activating CellBroadcast

kristatos

@lduboeuf Thanks for investigation. I can't guarantee, that I can test with my Volla because I'm on a business trip for the whole week and I don't know if I'll have time for the testing and enough bandwidth for updating/installing.

lduboeuf

So today was also a Cell Broadcast test day for NL

Unfortunatly things were not working as expected and we can't figured out why yet.
If i find better debug command i will add it to the ticket. But we suspect something not working between the modem and ofono and that part of code is out of my skills, sorry.

Will notify here if anything new found.

lduboeuf

@lduboeuf said in The Cell Broadcast story:

So today was also a Cell Broadcast test day for NL

Unfortunatly things were not working as expected and we can't figured out why yet.
If i find better debug command i will add it to the ticket. But we suspect something not working between the modem and ofono and that part of code is out of my skills, sorry.

Will notify here if anything new found.

I've found the debug command for arm64 , see https://github.com/ubports/ubuntu-touch/issues/2003 ( Logs section ).

As it is now, we noticed that for Xenial, the test was not conclusive. But i have no idea if it's a porting issue or RIL<->Ofono issue.

I don't think we need to spend time on Xenial.
We should try with Focal, as it has a different code base for ofono.

lduboeuf

Feedback from yesterday Alert test in Germany:

Xenial users had no notification and issue is noticed between RIL and Ofono.
There has been a Focal test which was partially satisfying. No notification but logs shown that it was received by Ofono and a signal was emitted. So that is really good news!
Now I need to debug a bit why notif didn't went trough.

lduboeuf

Just to tell you i've received a Monthly test alert last Monday in my area, France ( Pixel3a 20.04 devel ).

So the stack is working! ( Notification + Indicator + Messaging-app )

Only one interrogation for me is if topic filter works ( Settings-> Notifications->Cell broadcast ).
Mine were all toggled on.

I will add screenshot ( only missed notif )

Ian

@lduboeuf It looks like the cell broadcast feature will be trialled in the UK next month.

https://www.bbc.co.uk/news/uk-64999417

kristatos

@lduboeuf Hi, I've checked the CB-settings with 20.04 OTA-1. I can activate notifications for the several alerts with their sliders, but the very first slider is off and greyed out and says "cell broadcast deactivated". Is this a bug? And do the alerts still work, if the first slider says "cell broadcast deactivated"?