Now I did, still with modemmanager from comment #45: sudo restart modemmanager sudo python debug-helper.py --mm debug sudo python debug-helper.py --nm debug tail -n0 -f /var/log/syslog > /tmp/syslog
Then I clicked first "Enable Mobile Broadband", wited for the OSD, and clicked "T-Mobile (Telekom) Default" in the network manager indicator applet menu. Then the icon started spinning and I waited for it to stop (no OSD, no connection, no IP) and several more minutes. The syslog is attached. modem-manager seems to be communication infinitely. It does not stop. But at least it does not crash. This part of the bug seems to be fixed. Problem is now to get a connection/IP. ** Attachment added: "syslog" https://bugs.launchpad.net/ubuntu/+source/network-manager/+bug/1164023/+attachment/3637708/+files/syslog -- 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/modemmanager/+bug/1164023/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs