Public bug reported: I have been using a Novatel USB720 successfully for years on Ubuntu - after upgrading to 14.04 (then doing a complete clean install), I continue to get this in my dmesg:
[ 4220.244259] usb 2-2: new full-speed USB device number 12 using xhci_hcd [ 4220.374563] usb 2-2: New USB device found, idVendor=1410, idProduct=2110 [ 4220.374567] usb 2-2: New USB device strings: Mfr=1, Product=2, SerialNumber=0 [ 4220.374570] usb 2-2: Product: Novatel Wireless CDMA [ 4220.374572] usb 2-2: Manufacturer: Novatel Wireless Inc. [ 4220.375771] option 2-2:1.0: GSM modem (1-port) converter detected [ 4220.375867] usb 2-2: GSM modem (1-port) converter now attached to ttyUSB0 [ 4220.376222] option 2-2:1.1: GSM modem (1-port) converter detected [ 4220.376298] usb 2-2: GSM modem (1-port) converter now attached to ttyUSB1 [ 4220.531806] usb 2-2: USB disconnect, device number 12 [ 4220.531938] option1 ttyUSB0: GSM modem (1-port) converter now disconnected from ttyUSB0 [ 4220.531949] option 2-2:1.0: device disconnected [ 4220.532040] option1 ttyUSB1: usb_wwan_indat_callback: resubmit read urb failed. (-19) [ 4220.532042] option1 ttyUSB1: usb_wwan_indat_callback: resubmit read urb failed. (-19) [ 4220.532044] option1 ttyUSB1: usb_wwan_indat_callback: resubmit read urb failed. (-19) [ 4220.532045] option1 ttyUSB1: usb_wwan_indat_callback: resubmit read urb failed. (-19) [ 4220.532110] option1 ttyUSB1: GSM modem (1-port) converter now disconnected from ttyUSB1 [ 4220.532118] option 2-2:1.1: device disconnected The device is obviously not working properly anymore. ** Affects: linux (Ubuntu) Importance: Undecided Status: Incomplete ** Tags: trusty -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1454361 Title: WWAN device no longer works in 14.04 or higher To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1454361/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs