Ubuntu
network-manager package

HP lt4120 Snapdragon X5 LTE USB modem not recognized by network-manager

Bug #1574582 reported by Marcin on 2016-04-25

This bug affects 12 people

Affects		Status	Importance	Assigned to	Milestone
	network-manager (Ubuntu)	Confirmed	Medium	Unassigned

Bug Description

USB modem not recognized by network-manager. Modem information in attached

ProblemType: Bug
DistroRelease: Ubuntu 16.04
Package: network-manager 1.1.93-0ubuntu4
ProcVersionSignature: Ubuntu 4.4.0-21.37-generic 4.4.6
Uname: Linux 4.4.0-21-generic x86_64
ApportVersion: 2.20.1-0ubuntu2
Architecture: amd64
CasperVersion: 1.376
Date: Mon Apr 25 11:14:04 2016
IfupdownConfig:
# interfaces(5) file used by ifup(8) and ifdown(8)
auto lo
iface lo inet loopback
IpRoute:
default via 10.106.36.1 dev wlp2s0 proto static metric 600
1.1.1.1 via 10.106.36.1 dev wlp2s0 proto dhcp metric 600
10.106.36.0/22 dev wlp2s0 proto kernel scope link src 10.106.39.123 metric 600
169.254.0.0/16 dev wlp2s0 scope link metric 1000
LiveMediaBuild: Ubuntu 16.04 LTS "Xenial Xerus" - Release amd64 (20160420.1)
NetworkManager.state:
[main]
NetworkingEnabled=true
WirelessEnabled=true
WWANEnabled=true
ProcEnviron:
TERM=xterm-256color
PATH=(custom, no user)
LANG=en_US.UTF-8
SHELL=/bin/bash
SourcePackage: network-manager
UpgradeStatus: No upgrade log present (probably fresh install)
nmcli-dev:
DEVICE TYPE STATE DBUS-PATH CONNECTION CON-UUID CON-PATH
wlp2s0 wifi connected /org/freedesktop/NetworkManager/Devices/1 IQORAMS_REPAIR 3b1e13ff-f9c9-4a49-a576-465bc2713e21 /org/freedesktop/NetworkManager/ActiveConnection/1
enxb2e41f35ffe1 ethernet disconnected /org/freedesktop/NetworkManager/Devices/2 -- -- --
enp0s31f6 ethernet unavailable /org/freedesktop/NetworkManager/Devices/3 -- -- --
lo loopback unmanaged /org/freedesktop/NetworkManager/Devices/0 -- -- --
nmcli-nm: Error: command ['nmcli', '-f', 'all', 'nm'] failed with exit code 2: Error: Object 'nm' is unknown, try 'nmcli help'.

Tags:

Revision history for this message

Marcin (marcincelebucki) wrote on 2016-04-25:

Modem USB device info Edit (15.2 KiB, text/plain)
CRDA.txt Edit (392 bytes, text/plain; charset="utf-8")
Dependencies.txt Edit (8.4 KiB, text/plain; charset="utf-8")
IpAddr.txt Edit (1012 bytes, text/plain; charset="utf-8")
IwConfig.txt Edit (584 bytes, text/plain; charset="utf-8")
JournalErrors.txt Edit (13.6 KiB, text/plain; charset="utf-8")
NetDevice.enp0s31f6.txt Edit (821 bytes, text/plain; charset="utf-8")
NetDevice.enxb2e41f35ffe1.txt Edit (1.3 KiB, text/plain; charset="utf-8")
NetDevice.lo.txt Edit (249 bytes, text/plain; charset="utf-8")
NetDevice.wlp2s0.txt Edit (892 bytes, text/plain; charset="utf-8")
NetworkManager.conf.txt Edit (75 bytes, text/plain; charset="utf-8")
PciNetwork.txt Edit (3.8 KiB, text/plain; charset="utf-8")
RfKill.txt Edit (112 bytes, text/plain; charset="utf-8")
WifiSyslog.txt Edit (98.6 KiB, text/plain; charset="utf-8")
nmcli-con.txt Edit (1.1 KiB, text/plain; charset="utf-8")

Revision history for this message

Launchpad Janitor (janitor) wrote on 2016-05-20:

Status changed to 'Confirmed' because the bug affects multiple users.

Changed in network-manager (Ubuntu):
status:	New → Confirmed

Revision history for this message

Eddie Vassallo (eddie-x) wrote on 2016-05-20:

I have the HP Elite x2 1012 with the HP lt4120 Qualcomm® Snapdragon™ X5 LTE Mobile Broadband Module and it is also not being recognised in any flavour of Ubuntu 16.04.

Revision history for this message

Paolo Pennisi (paolo-pennisi) wrote on 2016-05-26:

I have an HP EliteBook 745 G3 with the HP lt4120 Qualcomm® Snapdragon™ X5 LTE Mobile Broadband Module and it is not recognized by Xubuntu 16.04 as well.

Alberto Salvia Novella (es20490446e) on 2016-05-26

Changed in network-manager (Ubuntu):
importance:	Undecided → Medium

Revision history for this message

Fèlix (felix-luengo) wrote on 2016-06-13:

Possible solution with 99-XXX.rules Edit (966 bytes, text/plain)

Hi,

We have the HP EliteBook 820 G3 with the HP lt4120 Qualcomm® Snapdragon™ X5 LTE Mobile Broadband Module and it is also not being recognised in any flavour of Ubuntu 16.04.

After a clean setup, the lt4120 is recognized as a second ethernet card.

We had the same issue on another HP laptop, ProBook 640 G2, and solved for Ubuntu 14.04.4 LTS creating a '99-XXX.rules' file on '/etc/udev/rules.d/' folder. (Attached in case is useful for someone)

This solution doesn't work for the EliteBook 820 G3 and Ubuntu 16.04, neither Ubuntu 14.04:
After adding the '99-XXX.rules' file now we can see the 'Mobile broadband enable' options under the Network Manager system bar, so the card is not recognized as ethernet. But it does nothing when selecting it: always appears as "Disabled Mobile Broadband".

Revision history for this message

Petr Kutalek (petrkutalek) wrote on 2016-06-14:

Felix,

'99-XXX.rules' file used to work for me on lt4120 and HP EliteBook 840 G3 few weeks ago on 16.04LTS. Unfortunatelly, it does not work now. I have absolutely no idea what has changed. (mmcli -L finds my modem, however, I am unable to communicate with it. mmcli -L shows "unknown modem").

Are you able to initiate your modem via this commands?

sudo sh -c 'echo "1" > /sys/bus/usb/devices/usbX/X-X/bConfigurationValue' (find and use appropiate Xes for you)
sudo modprobe -b qmi_wwan
sudo sh -c 'echo "03f0 9d1d" > /sys/bus/usb/drivers/qmi_wwan'

Then mmcli -L

Petr

Revision history for this message

Alexander Borovsky (alex-borovsky) wrote on 2016-07-08:

This modem require configuration loaded in order to work. One of the options is loading Windows, waiting while it configure modem and then restart.

Other option is described here: https://abarouski.blogspot.com/2016/07/configuring-hp-lt4120-in-linux-as-i.html

This solution not yet in upstream (but I'm working on it).

Revision history for this message

debb1046 (debb1046) wrote on 2018-11-03:

In 18.04 I can get the modem working by:
sudo usb_modeswitch -v 0x03f0 -p 0x9d1d -u3

Revision history for this message

Andreas Martitsch (anma2019) wrote on 2019-08-12:

Download full text (6.1 KiB)

In 18.04 I was able to configure the modem properly using following steps:

XXX@XXX-HP-EliteBook-840-G3:~$ uname -a
Linux XXX-HP-EliteBook-840-G3 5.0.0-23-generic #24~18.04.1-Ubuntu SMP Mon Jul 29 16:12:28 UTC 2019 x86_64 x86_64 x86_64 GNU/Linux

Step 1: Check if the LTE module is properly detected by the NetworkManager

XXX@XXX-HP-EliteBook-840-G3:~$ mmcli -L
/org/freedesktop/ModemManager1/Modem/0 [HP] HP lt4120 Snapdragon X5 LTE

XXX@XXX-HP-EliteBook-840-G3:~$ mmcli -m 0

  --------------------------
  General | dbus path: /org/freedeskto---------------------
  Hardware | manufacturer: HP
           |            |            |            |            |            |            |            |            |   --------------------------
  System | device: /sys/devices/pci0000:---------------------
  Numbers | own: XXXXXXXXXXXXX
  --------------------------
  Status | lock: sim-pin2
           |            |            |            |            |   --------------------------
  Modes | supported: allowed: 2g; preferred:            |            |            |            |            |            |            |            |            |            |            |   --------------------------
  Bands | supported: egsm, dcs, pcs, g850,            |            |            |            |            |            | ... />p/ModemManager1/Modem/0
device id: XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX
model: HP lt4120 Snapdragon X5 LTE
revision: T77W595.F0.0.0.3.4.GC.020 1 [Jul 01 2015 06:00:00]
h/w revision: V055
supported: gsm-umts, lte
cdma-evdo, lte
lte
cdma-evdo, gsm-umts, lte
current: cdma-evdo, gsm-umts, lte
equipment id: XXXXXXXXXXXXXXX
/>00/0000:00:14.0/usb1/1-3
drivers: qmi_wwan
plugin: Generic
primary port: cdc-wdm0
ports: cdc-wdm0 (qmi), wwp0s20f0u3i1 (net)
unlock retries: sim-pin (3), sim-pin2 (3), sim-puk (10), sim-puk2 (10)
state: connected
power state: on
access tech: lte
signal quality: 49% (recent)
none
allowed: 3g; preferred: none
allowed: 2g, 3g; preferred: 3g
allowed: 2g, 3g; preferred: 2g
allowed: 2g, 4g; preferred: 4g
allowed: 2g, 4g; preferred: 2g
allowed: 3g, 4g; preferred: 3g
allowed: 3g, 4g; preferred: 4g
allowed: 2g, 3g, 4g; preferred: 4g
allowed: 2g, 3g, 4g; preferred: 3g
allowed: 2g, 3g, 4g; preferred: 2g
current: allowed: 2g, 3g, 4g; preferred: 4g
utran-1, utran-4, utran-5, utran-8,
utran-2, eutran-1, eutran-2, eutran-3, eutran-4, eutran-5, eutran-7,
eutran-8, eutran-12, eutran-13, eutran-17, eutran-20, cdma-bc0,
cdma-bc1
current: egsm, dcs, pcs, g850, utran-1, utran-4, utran-5, utran-8,
utran-2, eutran-1, eutran-2, eutran-3, eutran-4, eutran-5, eutran-7,
eutran-8, eutran-12, eutran-13, eutran-17, eutran-20, cdma-bc0,

In 18.04 I was able to configure the modem properly using following steps:

XXX@XXX-HP-EliteBook-840-G3:~$ uname -a
Linux XXX-HP-EliteBook-840-G3 5.0.0-23-generic #24~18.04.1-Ubuntu SMP Mon Jul 29 16:12:28 UTC 2019 x86_64 x86_64 x86_64 GNU/Linux

Step 1: Check if the LTE module is properly detected by the NetworkManager

XXX@XXX-HP-EliteBook-840-G3:~$ mmcli -L
    /org/freedesktop/ModemManager1/Modem/0 [HP] HP lt4120 Snapdragon X5 LTE

XXX@XXX-HP-EliteBook-840-G3:~$ mmcli -m 0

Step 2: (only necessary, if no LTE module is detected under Step 1) Get the the vendor and product ID of the LTE module

XXX@XXX-HP-EliteBook-840-G3:~$ lsusb
Bus 002 Device 001: ID XXXX:YYYY ZZZZZZ
Bus 001 Device 006: ID XXXX:YYYY ZZZZZZ
Bus 001 Device 005: ID XXXX:YYYY ZZZZZZ
Bus 001 Device 007: ID XXXX:YYYY ZZZZZZ
Bus 001 Device 003: ID 03f0:9d1d Hewlett-Packard 
Bus 001 Device 001: ID XXXX:YYYY ZZZZZZ

Step 3: (only necessary, if no LTE module is detected under Step 1) Create a specific udev rules file (e.g., 99-hp-lt4120.rules) under /etc/udev/rules.d/

ACTION!="add|change", GOTO="mbim_to_qmi_rules_end"
SUBSYSTEM!="usb|drivers", GOTO="mbim_to_qmi_rules_end"

# force HP lt4120 to configuration #1
SUBSYSTEM=="usb", \
ATTR{idVendor}=="03f0", ATTR{idProduct}=="9d1d", \
ATTR{bConfigurationValue}="1"

# load qmi_wwan module
SUBSYSTEM=="usb", \
ATTR{idVendor}=="03f0", ATTR{idProduct}=="9d1d", \
RUN+="/sbin/modprobe -b qmi_wwan"

# add the new id in the qmi_wwan driver
SUBSYSTEM=="drivers", \
ENV{DEVPATH}=="/sys/bus/usb/drivers/qmi_wwan", \
ATTR{new_id}="03f0 9d1d"

# load qcserial module
SUBSYSTEM=="usb", \
ATTR{idVendor}=="03f0", ATTR{idProduct}=="9d1d", \
RUN+="/sbin/modprobe -b qcserial"

# add the new id in the qcserial driver
SUBSYSTEM=="drivers", \
ENV{DEVPATH}=="/sys/bus/usb-serial/drivers/qcserial", \
ATTR{new_id}="03f0 9d1d"
LABEL="mbim_to_qmi_rules_end"

Step 3: (only necessary, if no LTE module is detected under Step 1) Power off and reboot. Now the LTE module should be visible in the NetworkManager as "disabled".

Step 4: (only necessary, if the "Status" (see Step 1) of the LTE module is not connected) Check if the LTE module can be enabled and connected

XXX@XXX-HP-EliteBook-840-G3:~$ sudo mmcli -m 0 --enable
successfully enabled the modem
XXX@XXX-HP-EliteBook-840-G3:~$sudo mmcli -m 0 --simple-connect="pin=XXXX"
successfully connected the modem

Step 5: Create a connection for your specific provider (see https://docs.ubuntu.com/core/en/stacks/network/network-manager/docs/configure-cellular-connections for further details)

e.g., for provider "HOT" in Austria

XXX@XXX-HP-EliteBook-840-G3:~$ nmcli c add type gsm ifname cdc-wdm0 con-name HOT apn webaut 
XXX@XXX-HP-EliteBook-840-G3:~$ nmcli r wwan on

Step 6: (If needed) disable auto-connection

XXX@XXX-HP-EliteBook-840-G3:~$ nmcli c modify HOT autoconnect no
XXX@XXX-HP-EliteBook-840-G3:~$ nmcli c down HOT

Revision history for this message

Robert Heel (g2f-ubuntu-com) wrote on 2021-09-10:

#10

Does not work here, too :-(

Ubuntu 21.04 (upgraded)
HP EliteBook 840 G3

after adding udev rule I get dmesg error:
[ 1318.326793] usb 1-3: unknown number of interfaces: 5
[ 1318.333270] qmi_wwan 1-3:1.1: cdc-wdm0: USB WDM device
[ 1318.333610] qmi_wwan 1-3:1.1 wwan0: register 'qmi_wwan' at usb-0000:00:14.0-3, WWAN/QMI device, fa:9c:a4:df:ff:eb
[ 1318.333702] qmi_wwan 1-3:1.2: bogus CDC Union: master=0, slave=0
[ 1318.334491] qmi_wwan 1-3:1.2: cdc-wdm1: USB WDM device
[ 1318.334790] qmi_wwan 1-3:1.2 wwan1: register 'qmi_wwan' at usb-0000:00:14.0-3, WWAN/QMI device, fa:9c:a4:df:ff:eb
[ 1318.334870] qmi_wwan 1-3:1.3: bogus CDC Union: master=0, slave=0
[ 1318.336461] qmi_wwan 1-3:1.3: cdc-wdm2: USB WDM device
[ 1318.336702] qmi_wwan 1-3:1.3 wwan2: register 'qmi_wwan' at usb-0000:00:14.0-3, WWAN/QMI device, fa:9c:a4:df:ff:eb
[ 1318.339062] qmi_wwan 1-3:1.4: bogus CDC Union: master=0, slave=0
[ 1318.339838] qmi_wwan 1-3:1.4: cdc-wdm3: USB WDM device
[ 1318.340172] qmi_wwan 1-3:1.4 wwan3: register 'qmi_wwan' at usb-0000:00:14.0-3, WWAN/QMI device, fa:9c:a4:df:ff:eb
[ 1318.370397] qmi_wwan 1-3:1.1 wwan0: unregister 'qmi_wwan' usb-0000:00:14.0-3, WWAN/QMI device
[ 1318.389216] qmi_wwan 1-3:1.2 wwan1: unregister 'qmi_wwan' usb-0000:00:14.0-3, WWAN/QMI device
[ 1318.413358] qmi_wwan 1-3:1.3 wwan2: unregister 'qmi_wwan' usb-0000:00:14.0-3, WWAN/QMI device
[ 1318.437003] qmi_wwan 1-3:1.4 wwan3: unregister 'qmi_wwan' usb-0000:00:14.0-3, WWAN/QMI device

Revision history for this message

Mike (michael-ubu-pan) wrote on 2021-11-15 (last edit on 2021-11-16):

#12

udev script for modem Edit (587 bytes, text/plain)

This is not a NetworkManager problem. It is also reported by me in
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1950385
and it is probably kernel bug.

The workaround is to use udev script for a modem to switch it to the MBIM mode which works ok under ModemManager & NetworkManager. Reboot. Recreate connection profile for modem in Network Manager Mobile Broadband Settings for your GSM Network Provider to make it binded with new MBiM devid config.
Tested on kernels 5.8, 5,11, 5.13.

Place the attached udev script file in: /etc/udev/rules.d instead of any old one. It uses usb_modeswitch to do the "magic" correctly.

Update 2:
You can also correct the fault in qmi based old modem udev script by replacing line:
ATTR{bConfigurationValue}="1"
with
RUN+="/usr/sbin/usb_modeswitch -v 03f0 -p 9d1d --configuration 1"
and it works without qmi errors.
The direct write to attribute in udev script started to brake functionality from kernel 5.1x