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://staging/~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://staging/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
To post a comment you must log in.
This report contains Public information  
Everyone can see this information.
Subscribing...

Other bug subscribers

Remote bug watches

Bug watches keep track of this bug in other bug trackers.