Ubuntu
ofono package

Modem can sometimes take more than 20s to start

Bug #1226145 reported by Omer Akram
6
This bug affects 1 person
Affects Status Importance Assigned to Milestone
ofono (Ubuntu)
Invalid
High
Unassigned
telepathy-ofono (Ubuntu)
Fix Released
Undecided
Unassigned

Bug Description

When I start my phone, for the first 20-30 seconds the network indicator says 'No Signal' so I am not able to send any sms or make any calls during that time. After a few seconds things come to normal. I have attached a screenshot.

Now I assume that network indicator only shows what its fed so the issue may as well be in ofono.

ProblemType: Bug
DistroRelease: Ubuntu 13.10
Package: indicator-network 0.5.0+13.10.20130913-0ubuntu1
Uname: Linux 3.4.0-3-mako armv7l
ApportVersion: 2.12.1-0ubuntu4
Architecture: armhf
Date: Mon Sep 16 17:26:03 2013
InstallationDate: Installed on 2013-09-14 (1 days ago)
InstallationMedia: Ubuntu Saucy Salamander (development branch) - armhf (20130914.1)
MarkForUpload: True
ProcEnviron:
 TERM=linux
 PATH=(custom, no user)
SourcePackage: indicator-network
UpgradeStatus: No upgrade log present (probably fresh install)

Related branches

lp:~tiagosh/telepathy-ofono/no-register
Alfonso Sanchez-Beato: Approve
PS Jenkins bot: Approve (continuous-integration)
Ubuntu Phablet Team: Pending requested
Diff: 18 lines (+0/-2)
1 file modified
connection.cpp (+0/-2)
lp:ubuntu/saucy-proposed/telepathy-ofono
Revision history for this message
Omer Akram (om26er) wrote :
Changed in indicator-network:
importance: Undecided → High
Revision history for this message
Omer Akram (om26er) wrote :

setting the priority to high because when the phone is started it should really be working

Changed in indicator-network (Ubuntu):
importance: Undecided → High
Revision history for this message
Ted Gould (ted) wrote :

Marking as an oFono bug for taking excessive amounts of time to start in some cases.

affects: indicator-network (Ubuntu) → ofono (Ubuntu)
Changed in indicator-network:
status: New → Invalid
summary: - Network indicator says 'No Signal' when the phone is started
+ Modem can sometimes take more than 20s to start
Omer Akram (om26er)
affects: indicator-network → ofono
Changed in ofono:
status: Invalid → New
Revision history for this message
Nicholas Skaggs (nskaggs) wrote :

Confirming, it took almost a minute before the signal connected, using a smarttalk sim.

Changed in ofono (Ubuntu):
status: New → Confirmed
Omer Akram (om26er)
tags: added: qa-touch
Julien Funk (jaboing)
tags: added: jfunk
Revision history for this message
Alfonso Sanchez-Beato (alfonsosanchezbeato) wrote :

This can be at least partially related to bug #1235138 (ubuntu-load-manager makes DoS attack on ofono)

Omer Akram (om26er)
no longer affects: ofono
Omer Akram (om26er)
tags: added: rls-s-incoming
Revision history for this message
Alfonso Sanchez-Beato (alfonsosanchezbeato) wrote :

I have seen the same problem with a SIM card that sometimes takes 3 minutes to register, and another that takes 30 seconds. The problem is that the modem is trying to register first in a network to which the SIM does not belong. This is triggered whenever ofonod takes a bit longer than expected to register: this makes NetworkManager a bit nervous, and it calls to interface=org.ofono.NetworkRegistration; member=Register.

There is nothing with this call, but ofono sends because of this a RIL_REQUEST_SET_NETWORK_SELECTION_AUTOMATIC message to RILd. This is equivalent to doing AT+COPS=0 in an AT modem, which *almost for sure* removes the EF_LOCI file in the SIM card. This file contains information of the latest network to which the SIM was registered and the TMSI: this information speeds up considerably the registration.

Summarizing: the call to RIL_REQUEST_SET_NETWORK_SELECTION_AUTOMATIC makes the SIM to register like if it had woken up in another country or for the very first time.

Revision history for this message
Alfonso Sanchez-Beato (alfonsosanchezbeato) wrote :

#6 Change NetworkManager to telepathy-ofono

Tony Espy (awe)
Changed in telepathy-ofono (Ubuntu):
status: New → Fix Committed
Revision history for this message
Launchpad Janitor (janitor) wrote :

This bug was fixed in the package telepathy-ofono - 0.2+13.10.20131013-0ubuntu1

---------------
telepathy-ofono (0.2+13.10.20131013-0ubuntu1) saucy; urgency=low

  [ Tiago Salem Herrmann ]
  * telepathy-ofono does not need to ask ofono to register into the
    network. (LP: #1226145)

  [ Ubuntu daily release ]
  * Automatic snapshot from revision 48
 -- Ubuntu daily release <email address hidden> Sun, 13 Oct 2013 01:01:14 +0000

Changed in telepathy-ofono (Ubuntu):
status: Fix Committed → Fix Released
Omer Akram (om26er)
Changed in ofono (Ubuntu):
status: Confirmed → Invalid
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