In the kernel 5.15.x and up the modem X5 is working in the MBIM mode, so
the updated udev script attached.
** Attachment added: "99-hp-lt4120-test.rules"
https://bugs.launchpad.net/ubuntu/+source/network-manager/+bug/1574582/+attachment/5715918/+files/99-hp-lt4120-test.rules
--
You received
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 problem is described by ModemManager's developer in our discussion:
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 problem is described by ModemManager's developer in our discussion:
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
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
In 18.04 I can get the modem working by:
sudo usb_modeswitch -v 0x03f0 -p 0x9d1d -u3
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https://bugs.launchpad.net/bugs/1574582
Title:
HP lt4120 Snapdragon X5 LTE
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
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").
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,
** Changed in: network-manager (Ubuntu)
Importance: Undecided => Medium
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You received this bug notification because you are a member of Desktop
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https://bugs.launchpad.net/bugs/1574582
Title:
HP lt4120 Snapdragon X5 LTE USB modem
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.
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Status changed to 'Confirmed' because the bug affects multiple users.
** Changed in: network-manager (Ubuntu)
Status: New => Confirmed
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You received this bug notification because you are a member of Desktop
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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.
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