The kernel fix actually breaks the use of the modem with Network manager, so this must be solved before Ubuntu 12.10:
Jun 11 13:42:53 marius-T1005 NetworkManager[1174]: <info> Auto-activating connection 'Netcom'. Jun 11 13:42:53 marius-T1005 NetworkManager[1174]: <info> Activation (wwan0) starting connection 'Netcom' Jun 11 13:42:53 marius-T1005 NetworkManager[1174]: <info> (wwan0): device state change: disconnected -> prepare (reason 'none') [30 40 0] Jun 11 13:42:53 marius-T1005 NetworkManager[1174]: <info> Activation (wwan0) Stage 1 of 5 (Device Prepare) scheduled... Jun 11 13:42:53 marius-T1005 NetworkManager[1174]: <info> Activation (wwan0) Stage 1 of 5 (Device Prepare) started... Jun 11 13:42:53 marius-T1005 NetworkManager[1174]: <info> (wwan0): device state change: prepare -> need-auth (reason 'none') [40 60 0] Jun 11 13:42:53 marius-T1005 NetworkManager[1174]: <info> Activation (wwan0) Stage 1 of 5 (Device Prepare) complete. Jun 11 13:42:53 marius-T1005 NetworkManager[1174]: <info> Activation (wwan0) Stage 1 of 5 (Device Prepare) scheduled... Jun 11 13:42:53 marius-T1005 NetworkManager[1174]: <info> Activation (wwan0) Stage 1 of 5 (Device Prepare) started... Jun 11 13:42:53 marius-T1005 NetworkManager[1174]: <info> (wwan0): device state change: need-auth -> prepare (reason 'none') [60 40 0] Jun 11 13:42:53 marius-T1005 NetworkManager[1174]: <info> Activation (wwan0) Stage 1 of 5 (Device Prepare) complete. Jun 11 13:43:19 marius-T1005 NetworkManager[1174]: <warn> GSM connection failed: (32) Serial command timed out Jun 11 13:43:19 marius-T1005 NetworkManager[1174]: <info> (wwan0): device state change: prepare -> failed (reason 'unknown') [40 120 1] Jun 11 13:43:19 marius-T1005 NetworkManager[1174]: <warn> Activation (wwan0) failed. Jun 11 13:43:19 marius-T1005 NetworkManager[1174]: <info> (wwan0): device state change: failed -> disconnected (reason 'none') [120 30 0] Jun 11 13:43:19 marius-T1005 NetworkManager[1174]: <info> (wwan0): deactivating device (reason 'none') [0] I guess modemmanager should communicate with the new /dev/cdc-wdm0 instead of wwan0. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/977761 Title: Connection with ZTE MF820D LTE/4G modem not using new qmi-wdm/qmi_wwan kernel modules To manage notifications about this bug go to: https://bugs.launchpad.net/modemmanager/+bug/977761/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs