Tested upstream kernel and the problem still exists:
[ 77.641299] usb 1-2: new full-speed USB device number 5 using xhci_hcd
[ 77.771405] usb 1-2: New USB device found, idVendor=1410, idProduct=2110
[ 77.771409] usb 1-2: New USB device strings: Mfr=1, Product=2, SerialNumber=0
[ 77.771410] usb 1-2: Product: Novatel Wireless CDMA
[ 77.771412] usb 1-2: Manufacturer: Novatel Wireless Inc.
[ 77.781440] usbcore: registered new interface driver usbserial
[ 77.781465] usbcore: registered new interface driver usbserial_generic
[ 77.781487] usbserial: USB Serial support registered for generic
[ 77.785717] usbcore: registered new interface driver option
[ 77.785750] usbserial: USB Serial support registered for GSM modem (1-port)
[ 77.785834] option 1-2:1.0: GSM modem (1-port) converter detected
[ 77.785917] usb 1-2: GSM modem (1-port) converter now attached to ttyUSB0
[ 77.785942] option 1-2:1.1: GSM modem (1-port) converter detected
[ 77.786011] usb 1-2: GSM modem (1-port) converter now attached to ttyUSB1
[ 77.814302] usb 1-2: USB disconnect, device number 5
[ 77.814433] option1 ttyUSB0: GSM modem (1-port) converter now disconnected
from ttyUSB0
[ 77.814444] option 1-2:1.0: device disconnected
[ 77.814498] option1 ttyUSB1: usb_wwan_indat_callback: resubmit read urb
failed. (-19)
[ 77.814501] option1 ttyUSB1: usb_wwan_indat_callback: resubmit read urb
failed. (-19)
[ 77.814503] option1 ttyUSB1: usb_wwan_indat_callback: resubmit read urb
failed. (-19)
[ 77.814504] option1 ttyUSB1: usb_wwan_indat_callback: resubmit read urb
failed. (-19)
[ 77.814647] option1 ttyUSB1: GSM modem (1-port) converter now disconnected
from ttyUSB1
[ 77.814660] option 1-2:1.1: device disconnected
** Tags added: kernel-bug-exists-upstream
** Changed in: linux (Ubuntu)
Status: Incomplete => Confirmed
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https://bugs.launchpad.net/bugs/1454361
Title:
WWAN device no longer works in 14.04 or higher
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