I have booted the 12.10 Desktop amd64 live CD now as I know that the mobile broadband works with this. In the live system I entered
wget http://cgit.freedesktop.org/NetworkManager/NetworkManager/plain/test/debug-helper.py sudo python debug-helper.py --nm debug sudo python debug-helper.py --mm debug tail -n0 -f /var/log/syslog > syslog.txt This switches BOTH Modem Manager and Network Manager into debug mode. While capturing I have (as on the last test) first clicked "Enable Mobile Broadband" in the Network Manager menu, near the bottom. After some seconds I got an OSD pop-up that I am registered for GSM or so. Now I clicked on "New network" in the "Mobile Broadband" section and went through the first-time-setup wizard, choosing my operator (Germany, T-Mobile, Default). The indicator applet icon of the Network Manager started spinning, telling that it is searched for a network. After some time I got the OSD pop-up telling that I am connected. I disconnected the Ethernet cable then, opened Firefox and googled for "abcdef", to see that mobile broadband works. It does. Then I reconnected the ethernet cable and stopped capturing. syslog.txt is attached. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1164023 Title: modem-manager crashed with SIGSEGV in g_slice_alloc() - REGRESSION: No internet access via mobile broadband To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/modemmanager/+bug/1164023/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs