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Created attachment 1227617 [details] udev rules to let udevd identify device as usable modem. Description of problem: HP branded, internal, pci-x, lt4120 LTE modem not recognized by ModemManager as usable device. Version-Release number of selected component (if applicable): T77W595.F0.0.0.6.5.GC.028 1 [Jul 06 2016 23:00:00] How reproducible: Install OS on an operated laptop with named device. From scratch, device is listed only on lsusb output: Bus 001 Device 002: ID 03f0:9d1d Hewlett-Packard No device are created, until loading dedicated udev rule file (in attachment) Steps to Reproduce: 1. Install os 2. Load udev rule file 3. issue mmcli -L command Actual results: No modems were found Expected results: Device identified to be used as a WWAN capable device. Additional info: Without loading the udev rule, device is recognized (partially) like and additional Ethernet adapter. Reading notes in the mentioned Launchpad Bug, additional functions to libqmi-utils must be added, to allow loading firmware inside the device.
Created attachment 1227618 [details] Output from modemmanager started with debug option
I'm obviously available for any test would be useful to fix this issue.
no changes after 4.9.13-201.fc25.x86_64.
no changes after Fedora 26 alpha
no changes after Fedora 26 beta. Did someone will take care of this ?
Created attachment 1313496 [details] right udev rule to set lt4120 in config #3
Thanks to Tore Anderson, pointing me in the right direction. Applying the udev rule posted, I was able to have modemmanager to detect lt4120 and use it. Tested with both simple (internet) and complex(company apn) configurations, successfully.
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