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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

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https://bugs.launchpad.net/bugs/1454361

Title:
  WWAN device no longer works in 14.04 or higher

Status in linux package in Ubuntu:
  Incomplete

Bug description:
  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.

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