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 -- 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