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[Bug 1537482] [NEW] nm-applet regularly crashes at logon, in combination with failing 3G connection

 

Public bug reported:

I'm running Ubuntu 15.10 with network-manager 1.0.4-0ubuntu5.2.

Regularly (if not always) the nm-applet icon is not showing in the Unity
panel after logon.  Syslog shows these error messages:

Jan 23 21:07:21 desk1 gnome-session[3904]: (nm-applet:4812): nm-applet-WARNING **: Could not find ShellVersion property on org.gnome.Shell after 5 tries
Jan 24 09:42:37 desk1 gnome-session[19922]: (nm-applet:20700): libnm-glib-WARNING **: Error in get_property: Method "Get" with signature "ss" on interface "org.freedesktop.DBus.Properties" doesn't exist
Jan 24 09:42:38 desk1 gnome-session[19922]: (nm-applet:20700): nm-applet-WARNING **: Cannot grab information for modem at /org/freedesktop/ModemManager1/Modem/0: No ModemManager support
Jan 24 09:42:38 desk1 gnome-session[19922]: (nm-applet:20700): nm-applet-WARNING **: ModemManager is not available for modem at /org/freedesktop/ModemManager1/Modem/0
Jan 24 09:42:38 desk1 gnome-session[19922]: message repeated 3 times: [ (nm-applet:20700): nm-applet-WARNING **: ModemManager is not available for modem at /org/freedesktop/ModemManager1/Modem/0]
Jan 24 09:42:38 desk1 gnome-session[19922]: nm-applet:ERROR:applet-device-broadband.c:644:get_icon: assertion failed: (info)

Manually starting nm-applet from a Terminal works, sometimes however
only after some attempts where error messages similar to the ones above
are shown (btw, even when succeeding, the first 2 warning/error messages
on the ss signature and the ShellVersion show up). Once nm-applet is
started, the 3G modem connection signal bars are shown and sometimes
indeed a network connection (through 3G modem) is available. Often
however, several manual disconnect and subsequent connect operations are
needed before having the  network connection really up and running.

I suspect hence that there is an issue with my ModemManager and/or
NetworkManager configuration or implementation, and that nm-applet is
not robust enough to properly deal with these connection failures.

I have no issues on another Ubuntu 15.10 system with the same version of
network-manager installed.

** Affects: network-manager-applet (Ubuntu)
     Importance: Undecided
         Status: New

** Description changed:

  I'm running Ubuntu 15.10 with network-manager 1.0.4-0ubuntu5.2.
  
  Regularly (if not always) the nm-applet icon is not showing in the Unity
  panel after logon.  Syslog shows these error messages:
  
  Jan 23 21:07:21 desk1 gnome-session[3904]: (nm-applet:4812): nm-applet-WARNING **: Could not find ShellVersion property on org.gnome.Shell after 5 tries
  Jan 24 09:42:37 desk1 gnome-session[19922]: (nm-applet:20700): libnm-glib-WARNING **: Error in get_property: Method "Get" with signature "ss" on interface "org.freedesktop.DBus.Properties" doesn't exist
  Jan 24 09:42:38 desk1 gnome-session[19922]: (nm-applet:20700): nm-applet-WARNING **: Cannot grab information for modem at /org/freedesktop/ModemManager1/Modem/0: No ModemManager support
  Jan 24 09:42:38 desk1 gnome-session[19922]: (nm-applet:20700): nm-applet-WARNING **: ModemManager is not available for modem at /org/freedesktop/ModemManager1/Modem/0
  Jan 24 09:42:38 desk1 gnome-session[19922]: message repeated 3 times: [ (nm-applet:20700): nm-applet-WARNING **: ModemManager is not available for modem at /org/freedesktop/ModemManager1/Modem/0]
  Jan 24 09:42:38 desk1 gnome-session[19922]: nm-applet:ERROR:applet-device-broadband.c:644:get_icon: assertion failed: (info)
  
- 
- Manually starting nm-applet from a Terminal works, sometimes however only after some attempts where error messages similar to the ones above are shown (btw, even when succeeding, the first 2 warning/error messages on the ss signature and the ShellVersion show up). Once nm-applet is started, the 3G modem connection signal bars are shown and sometimes indeed a network connection (through 3G modem) is available. Often however, several manual disconnect and subsequent connect operations are needed before having the  network connection really up and running. 
+ Manually starting nm-applet from a Terminal works, sometimes however
+ only after some attempts where error messages similar to the ones above
+ are shown (btw, even when succeeding, the first 2 warning/error messages
+ on the ss signature and the ShellVersion show up). Once nm-applet is
+ started, the 3G modem connection signal bars are shown and sometimes
+ indeed a network connection (through 3G modem) is available. Often
+ however, several manual disconnect and subsequent connect operations are
+ needed before having the  network connection really up and running.
  
  I suspect hence that there is an issue with my ModemManager and/or
  NetworkManager configuration or implementation, and that nm-applet is
- not robust enough to properly deal with these connection failures. The
- need for nm-applet restarts is obviously less frustrating than the
- network connection issues themselves.
+ not robust enough to properly deal with these connection failures.
  
  I have no issues on another Ubuntu 15.10 system with the same version of
  network-manager installed.
- 
- I have been trying to understand this issue for a (too) long time now,
- and I realize that I will not manage without some help of the Community.
- Any input is therefore appreciated.

-- 
You received this bug notification because you are a member of Desktop
Packages, which is subscribed to network-manager-applet in Ubuntu.
https://bugs.launchpad.net/bugs/1537482

Title:
  nm-applet regularly crashes at logon, in combination with failing 3G
  connection

Status in network-manager-applet package in Ubuntu:
  New

Bug description:
  I'm running Ubuntu 15.10 with network-manager 1.0.4-0ubuntu5.2.

  Regularly (if not always) the nm-applet icon is not showing in the
  Unity panel after logon.  Syslog shows these error messages:

  Jan 23 21:07:21 desk1 gnome-session[3904]: (nm-applet:4812): nm-applet-WARNING **: Could not find ShellVersion property on org.gnome.Shell after 5 tries
  Jan 24 09:42:37 desk1 gnome-session[19922]: (nm-applet:20700): libnm-glib-WARNING **: Error in get_property: Method "Get" with signature "ss" on interface "org.freedesktop.DBus.Properties" doesn't exist
  Jan 24 09:42:38 desk1 gnome-session[19922]: (nm-applet:20700): nm-applet-WARNING **: Cannot grab information for modem at /org/freedesktop/ModemManager1/Modem/0: No ModemManager support
  Jan 24 09:42:38 desk1 gnome-session[19922]: (nm-applet:20700): nm-applet-WARNING **: ModemManager is not available for modem at /org/freedesktop/ModemManager1/Modem/0
  Jan 24 09:42:38 desk1 gnome-session[19922]: message repeated 3 times: [ (nm-applet:20700): nm-applet-WARNING **: ModemManager is not available for modem at /org/freedesktop/ModemManager1/Modem/0]
  Jan 24 09:42:38 desk1 gnome-session[19922]: nm-applet:ERROR:applet-device-broadband.c:644:get_icon: assertion failed: (info)

  Manually starting nm-applet from a Terminal works, sometimes however
  only after some attempts where error messages similar to the ones
  above are shown (btw, even when succeeding, the first 2 warning/error
  messages on the ss signature and the ShellVersion show up). Once nm-
  applet is started, the 3G modem connection signal bars are shown and
  sometimes indeed a network connection (through 3G modem) is available.
  Often however, several manual disconnect and subsequent connect
  operations are needed before having the  network connection really up
  and running.

  I suspect hence that there is an issue with my ModemManager and/or
  NetworkManager configuration or implementation, and that nm-applet is
  not robust enough to properly deal with these connection failures.

  I have no issues on another Ubuntu 15.10 system with the same version
  of network-manager installed.

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